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Application of multi-objective optimization based on Sobol sensitivity analysis in solar single-double-effect LiBr–H2O absorption refrigeration Front. Energy (IF 2.9) Pub Date : 2024-03-10 Shiqi Zhao, Qingyang Li, Yongchao Sun, Dechang Wang, Qinglu Song, Sai Zhou, Jinping Li, Yanhui Li
To improve the adaptability of solar refrigeration systems to different heat sources, a single-double-effect LiBr–H2O absorption refrigeration system (ARS) driven by solar energy was designed and analyzed. The system was optimized using a multi-objective optimization method based on Sobol sensitivity analysis to enhance solar energy efficiency and reduce costs. The model of the solar single-double-effect
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Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting Front. Energy (IF 2.9) Pub Date : 2024-03-10 Zhao-ting Shang, Tang-ming Li, Bing-qian Hu, Min Liu, Wang-ting Lu, Fan Yu, Yun Zheng
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Advances in doping strategies for sodium transition metal oxides cathodes: A review Front. Energy (IF 2.9) Pub Date : 2024-02-27 Zhijing Zhang, Haoze Zhang, Yaopeng Wu, Wei Yan, Jiujun Zhang, Yun Zheng, Lanting Qian
The electrochemistry of cathode materials for sodium-ion batteries differs significantly from lithium-ion batteries and offers distinct advantages. Overall, the progress of commercializing sodium-ion batteries is currently impeded by the inherent inefficiencies exhibited by these cathode materials, which include insufficient conductivity, slow kinetics, and substantial volume changes throughout the
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Recent progress in Prussian blue electrode for electrochromic devices Front. Energy (IF 2.9) Pub Date : 2024-03-10 Yongting Zhang, Wanzhong Li, Hui Gong, Qianqian Zhang, Liang Yan, Hao Wang
Great progress has been made in the electrochromic (EC) technology with potential applications in various fields. As one of the most promising EC materials, Prussian blue (PB) has attracted great attention due to its excellent EC performance, such as low cost, easy synthesis, rich color states, chemical stability, suitable redox potential, and fast color-switching kinetics. This review summarizes the
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Recent advances in morphology control of platinum catalysts toward oxygen reduction reaction Front. Energy (IF 2.9) Pub Date : 2024-02-25 Shun Chen, Yanru Liu, Xiaogang Fu, Wanglei Wang
Exploring advanced platinum (Pt)-based electrocatalysts is vital for the widespread implementation of proton exchange membrane fuel cells (PEMFCs). Morphology control represents an effective strategy to optimize the behavior of Pt catalysts. In this work, an attempt is made to comprehensively review the effect of morphology control on the catalytic behavior of catalysts in the oxygen reduction reaction
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Strain engineering of Pt-based electrocatalysts for oxygen reaction reduction Front. Energy (IF 2.9) Pub Date : 2024-02-22 Zeyu Wang, Yanru Liu, Shun Chen, Yun Zheng, Xiaogang Fu, Yan Zhang, Wanglei Wang
Proton exchange membrane fuel cells (PEMFCs) are playing irreplaceable roles in the construction of the future sustainable energy system. However, the insufficient performance of platinum (Pt)-based electrocatalysts for oxygen reduction reaction (ORR) hinders the overall efficiency of PEMFCs. Engineering the surface strain of catalysts is considered an effective way to tune their electronic structures
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A fibrous hydroelectric generator derived from eco-friendly sodium alginate for low-grade energy harvesting Front. Energy (IF 2.9) Pub Date : 2024-02-09
Abstract With the development of renewable energy technologies, the recovery and utilization of low-grade energy based on hydroelectric effect have drawn much attention owing to its environmental friendliness. Herein, a novel hydroelectric generator utilizing sodium alginate-graphene oxide (SA-GO) fibers is proposed, which is ecofriendly and low-cost. These fibers with a length of 5 cm and a diameter
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MXene supported PtCo bimetallic catalyst for hydrogen evolution in acidic conditions Front. Energy (IF 2.9) Pub Date : 2024-01-30 Guangxun Chen, Jian-hua Zhang, Kai-Ling Zhou, Yang Yang, Haoxiang Ma, Yuhong Jin, Jingbin Liu, Hao Wang
Using the electrochemical technology to split water molecules to produce hydrogen is the key to obtain green hydrogen for solving the energy crisis. The large-scale application of hydrogen evolution reaction (HER) in water dissociation requires a highly active catalyst. In this paper, the highly dispersed PtCo bimetallic nanoparticles loading on MXene (PtCo/MXene) were prepared by using a step-to-step
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Advanced 2D molybdenum disulfide for green hydrogen production: Recent progress and future perspectives Front. Energy (IF 2.9) Pub Date : 2024-01-20 Meng Fang, Yuqin Peng, Puwei Wu, Huan Wang, Lixin Xing, Ning Wang, Chunmei Tang, Ling Meng, Yuekuan Zhou, Lei Du, Siyu Ye
The development of renewable and affordable energy is crucial for building a sustainable society. In this context, establishing a sustainable infrastructure for renewable energy requires the integration of energy storage, specifically use of renewable hydrogen. The hydrogen evolution reaction (HER) of electrochemical water splitting is a promising method for producing green hydrogen. Recently, two-dimensional
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From seawater to hydrogen via direct photocatalytic vapor splitting: A review on device design and system integration Front. Energy (IF 2.9) Pub Date : 2024-01-15
Abstract Solar-driven hydrogen production from seawater attracts great interest for its emerging role in decarbonizing global energy consumption. Given the complexity of natural seawater content, photocatalytic vapor splitting offers a low-cost and safe solution, but with a very low solar-to-hydrogen conversion efficiency. With a focus on cutting-edge photothermal–photocatalytic device design and system
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Highly efficient and active Co-N-C catalysts for oxygen reduction and Zn–air batteries Front. Energy (IF 2.9) Pub Date : 2024-01-15 Cong Lei, Rongzhong Yang, Jianan Zhao, Wenbin Tang, Fadong Miao, Qinghong Huang, Yuping Wu
In this study, the Lewis doping approach of polyaniline (PANI) was employed to fabricate cobait–nitrogen–carbon (Co-N-C) oxygen electrocatalysts for Zn–air batteries, aiming to enhance the active spots of Co-N-C. This resulting Co-N-C catalysts exhibited well-defined nanofiber networks, and the Brunauer-Emmett-Teller (BET) analysis confirmed their substantial specific surface area. Electrochemical
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Capacity-operation collaborative optimization of the system integrated with wind power/photovoltaic/concentrating solar power with S-CO2 Brayton cycle Front. Energy (IF 2.9) Pub Date : 2024-01-15 Yangdi Hu, Rongrong Zhai, Lintong Liu
This paper proposes a new power generating system that combines wind power (WP), photovoltaic (PV), trough concentrating solar power (CSP) with a supercritical carbon dioxide (S-CO2) Brayton power cycle, a thermal energy storage (TES), and an electric heater (EH) subsystem. The wind power/photovoltaic/concentrating solar power (WP–PV–CSP) with the S-CO2 Brayton cycle system is powered by renewable
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Status quo on recycling of waste crystalline silicon for photovoltaic modules and its implications for China’s photovoltaic industry Front. Energy (IF 2.9) Pub Date : 2024-01-15
Abstract As a clean and efficient renewable energy source, solar energy has been rapidly applied worldwide. The growth rate of China’s installed capacity ranks first in the world. However, the life span of photovoltaic (PV) modules is 25 to 30 years, and the rapid development of installed capacity indicates that a large number of PV modules will be decommissioned in the future. Therefore, the ongoing
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Statistical approach to design Zn particle size, shape, and crystallinity for alkaline batteries Front. Energy (IF 2.9) Pub Date : 2024-01-10 Brian Lenhart, Devadharshini Kathan, Valerie Hiemer, Mike Zuraw, Matt Hull, William E. Mustain
In modern alkaline batteries, the zinc anode is the performance-limiting and lifetime-limiting electrode, making the choice of zinc powder critical. Due to the various material fabrication processes that are used to manufacture industrial zinc powder, there exists a wide array of possible zinc particle shapes, sizes, and crystallinities. These industrial zinc powders are typically conceived, produced
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Performance analysis of a novel medium temperature compressed air energy storage system based on inverter-driven compressor pressure regulation Front. Energy (IF 2.9) Pub Date : 2024-10-01 Yanghai Li, Wanbing Xu, Ming Zhang, Chunlin Zhang, Tao Yang, Hongyu Ding, Lei Zhang
In compressed air energy storage systems, throttle valves that are used to stabilize the air storage equipment pressure can cause significant exergy losses, which can be effectively improved by adopting inverter-driven technology. In this paper, a novel scheme for a compressed air energy storage system is proposed to realize pressure regulation by adopting an inverter-driven compressor. The system
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Application and structure of carbon nanotube and graphene-based flexible electrode materials and assembly modes of flexible lithium-ion batteries toward different functions Front. Energy (IF 2.9) Pub Date : 2024-01-10
Abstract In recent years, the rapid development of portable/wearable electronics has created an urgent need for the development of flexible energy storage devices. Flexible lithium-ion batteries (FLIBs) have emerged as the most attractive and versatile flexible electronic storage devices available. Carbon nanotubes (CNTs) are hollow-structured tubular nanomaterials with high electrical conductivity
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Numerical study of novel OME1−6 combustion mechanism and spray combustion at changed ambient environments Front. Energy (IF 2.9) Pub Date : 2024-01-10 Frederik Wiesmann, Dong Han, Zeyan Qiu, Lukas Strauβ, Sebastian Rieβ, Michael Wensing, Thomas Lauer
For a climate-neutral future mobility, the so-called e-fuels can play an essential part. Especially, oxygenated e-fuels containing oxygen in their chemical formula have the additional potential to burn with significantly lower soot levels. In particular, polyoxymethylene dimethyl ethers or oxymethylene ethers (PODEs or OMEs) do not contain carbon-carbon bonds, prohibiting the production of soot precursors
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Recent advances in co-processing biomass feedstock with petroleum feedstock: A review Front. Energy (IF 2.9) Pub Date : 2024-01-10 Cong Wang, Tan Li, Wenhao Xu, Shurong Wang, Kaige Wang
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Gradient boosting dendritic network for ultra-short-term PV power prediction Front. Energy (IF 2.9) Pub Date : 2024-01-10 Chunsheng Wang, Mutian Li, Yuan Cao, Tianhao Lu
To achieve effective intraday dispatch of photovoltaic (PV) power generation systems, a reliable ultra-short-term power generation forecasting model is required. Based on a gradient boosting strategy and a dendritic network, this paper proposes a novel ensemble prediction model, named gradient boosting dendritic network (GBDD) model which can reduce the forecast error by learning the relationship between
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Numerical multi-physical optimization of operating condition and current collecting setup for large-area solid oxide fuel cells Front. Energy (IF 2.9) Pub Date : 2024-01-01 Chengrong Yu, Zehua Pan, Hongying Zhang, Bin Chen, Wanbing Guan, Bin Miao, Siew Hwa Chan, Zheng Zhong, Yexin Zhou
Due to the depletion of traditional fossil fuels and the aggravation of related environmental problems, hydrogen energy is gaining more attention all over the world. Solid oxide fuel cell (SOFC) is a promising power generation technology operating on hydrogen with a high efficiency. To further boost the power output of a single cell and thus a single stack, increasing the cell area is an effective
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Dynamic simulation of GEH-IES with distributed parameter characteristics for hydrogen-blending transportation Front. Energy (IF 2.9) Pub Date : 2023-12-31 Dengji Zhou, Jiarui Hao, Wang Xiao, Chen Wang, Chongyuan Shui, Xingyun Jia, Siyun Yan
For the purpose of environment protecting and energy saving, renewable energy has been distributed into the power grid in a considerable scale. However, the consuming capacity of the power grid for renewable energy is relatively limited. As an effective way to absorb the excessive renewable energy, the power to gas (P2G) technology is able to convert excessive renewable energy into hydrogen. Hydrogen-blending
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Multi-timescale optimization scheduling of interconnected data centers based on model predictive control Front. Energy (IF 2.9) Pub Date : 2023-12-20 Xiao Guo, Yanbo Che, Zhihao Zheng, Jiulong Sun
With the promotion of “dual carbon” strategy, data center (DC) access to high-penetration renewable energy sources (RESs) has become a trend in the industry. However, the uncertainty of RES poses challenges to the safe and stable operation of DCs and power grids. In this paper, a multi-timescale optimal scheduling model is established for interconnected data centers (IDCs) based on model predictive
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Enhanced photoelectrochemical water splitting with a donor-acceptor polyimide Front. Energy (IF 2.9) Pub Date : 2023-11-30 Hongyu Qu, Xiaoyu Xu, Longfei Hong, Xintie Wang, Yifei Zan, Huiyan Zhang, Xiao Zhang, Sheng Chu
Polyimide (PI) has emerged as a promising organic photocatalyst owing to its distinct advantages of high visible-light response, facile synthesis, molecularly tunable donor-acceptor structure, and excellent physicochemical stability. However, the synthesis of high-quality PI photoelectrode remains a challenge, and photoelectrochemical (PEC) water splitting for PI has been less studied. Herein, the
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Performance of iron-air battery with iron nanoparticle-encapsulated C–N composite electrode Front. Energy (IF 2.9) Pub Date : 2023-12-05 Can Fang, Xiangmei Tang, Jiaoyan Wang, Qingfeng Yi
Highly efficient and stable iron electrodes are of great significant to the development of iron-air battery (IAB). In this paper, iron nanoparticle-encapsulated C–N composite (NanoFe@CN) was synthesized by pyrolysis using polyaniline as the C–N source. Electrochemical performance of the NanoFe@CN in different electrolytes (alkaline, neutral, and quasi-neutral) was investigated via cyclic voltammetry
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Analysis on carbon emission reduction intensity of fuel cell vehicles from a life-cycle perspective Front. Energy (IF 2.9) Pub Date : 2023-11-30 Ziyuan Teng, Chao Tan, Peiyuan Liu, Minfang Han
The hydrogen fuel cell vehicle is rapidly developing in China for carbon reduction and neutrality. This paper evaluated the life-cycle cost and carbon emission of hydrogen energy via lots of field surveys, including hydrogen production and packing in chlor-alkali plants, transport by tube trailers, storage and refueling in hydrogen refueling stations (HRSs), and application for use in two different
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Oxygen reduction electrocatalysis: From conventional to single-atomic platinum-based catalysts for proton exchange membrane fuel cells Front. Energy (IF 2.9) Pub Date : 2023-11-20 Cheng Yuan, Shiming Zhang, Jiujun Zhang
Platinum (Pt)-based materials are still the most efficient and practical catalysts to drive the sluggish kinetics of cathodic oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFCs). However, their catalysis and stability performance still need to be further improved in terms of corrosion of both carbon support and Pt catalyst particles as well as Pt loading reduction. Based
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A review of bifacial solar photovoltaic applications Front. Energy (IF 2.9) Pub Date : 2023-11-20 Aydan Garrod, Aritra Ghosh
Bifacial photovoltaics (BPVs) are a promising alternative to conventional monofacial photovoltaics given their ability to exploit solar irradiance from both the front and rear sides of the panel, allowing for a higher amount of energy production per unit area. The BPV industry is still emerging, and there is much work to be done until it is a fully mature technology. There are a limited number of reviews
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Two-phase early prediction method for remaining useful life of lithium-ion batteries based on a neural network and Gaussian process regression Front. Energy (IF 2.9) Pub Date : 2023-11-20 Zhiyuan Wei, Changying Liu, Xiaowen Sun, Yiduo Li, Haiyan Lu
Lithium-ion batteries (LIBs) are widely used in transportation, energy storage, and other fields. The prediction of the remaining useful life (RUL) of lithium batteries not only provides a reference for health management but also serves as a basis for assessing the residual value of the battery. In order to improve the prediction accuracy of the RUL of LIBs, a two-phase RUL early prediction method
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Machine learning and neural network supported state of health simulation and forecasting model for lithium-ion battery Front. Energy (IF 2.9) Pub Date : 2023-11-20 Nan Qi, Kang Yan, Yajuan Yu, Rui Li, Rong Huang, Lai Chen, Yuefeng Su
As the intersection of disciplines deepens, the field of battery modeling is increasingly employing various artificial intelligence (AI) approaches to improve the efficiency of battery management and enhance the stability and reliability of battery operation. This paper reviews the value of AI methods in lithium-ion battery health management and in particular analyses the application of machine learning
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Recent advances and challenges of nitrogen/nitrate electro catalytic reduction to ammonia synthesis Front. Energy (IF 2.9) Pub Date : 2023-11-20 Junwen Cao, Yikun Hu, Yun Zheng, Wenqiang Zhang, Bo Yu
The Haber-Bosch process is the most widely used synthetic ammonia technology at present. Since its invention, it has provided an important guarantee for global food security. However, the traditional Haber-Bosch ammonia synthesis process consumes a lot of energy and causes serious environmental pollution. Under the serious pressure of energy and environment, a green, clean, and sustainable ammonia
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Cluster voltage control method for “Whole County” distributed photovoltaics based on improved differential evolution algorithm Front. Energy (IF 2.9) Pub Date : 2023-11-12 Jing Zhang, Tonghe Wang, Jiongcong Chen, Zhuoying Liao, Jie Shu
China is vigorously promoting the “whole county promotion” of distributed photovoltaics (DPVs). However, the high penetration rate of DPVs has brought problems such as voltage violation and power quality degradation to the distribution network, seriously affecting the safety and reliability of the power system. The traditional centralized control method of the distribution network has the problem of
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Plasma spray coating on interconnector toward promoted solid oxide fuel cells and solid oxide electrolysis cells Front. Energy (IF 2.9) Pub Date : 2023-11-10 Junwen Cao, Yun Zheng, Wenqiang Zhang, Bo Yu
Interconnector is a critical component to construct solid oxide cells (SOCs) stack. Oxidation of metallic interconnectors and Cr poisoning caused by oxidation are important factors that lead to long-term performance degradation of SOCs. Coating on the interconnector surface is an important approach to inhibit the oxidation and Cr migration of the interconnector. Herein, (La0.75Sr0.25)0.95MnO3−δ (LSM)
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Alumina modified sodium vanadate cathode for aqueous zinc-ion batteries Front. Energy (IF 2.9) Pub Date : 2023-10-30 Linsong Gan, Fei Liu, Xinhai Yuan, Lijun Fu, Yuping Wu
Aqueous zinc-ion batteries (ZIBs) have great prospects for widespread application in massive scale energy storage. By virtue of the multivalent state, open frame structure and high theoretical specific capacity, vanadium (V)-based compounds are a kind of the most developmental potential cathode materials for ZIBs. However, the slow kinetics caused by low conductivity and the capacity degradation caused
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Mapping the trends and prospects of battery cathode materials based on patent landscape Front. Energy (IF 2.9) Pub Date : 2023-10-30 Chen Yang, Xin-Yu Mu
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Sulfur and carbon co-doped g-C3N4 microtubes with enhanced photocatalytic H2 production activity Front. Energy (IF 2.9) Pub Date : 2023-10-20 Yang Ge, Quanhao Shen, Qi Zhang, Naixu Li, Danchen Lu, Zhaoming Zhang, Zhiwei Fu, Jiancheng Zhou
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Automotive revolution and carbon neutrality Front. Energy (IF 2.9) Pub Date : 2023-10-20 C. C. Chan, Wei Han, Hanlei Tian, Yanbing Liu, Tianlu Ma, C. Q. Jiang
The automotive industry is in the midst of a groundbreaking revolution, driven by the imperative to achieve intelligent driving and carbon neutrality. A crucial aspect of this transformation is the transition to electric vehicles (EVs), which necessitates widespread changes throughout the entire automotive ecosystem. This paper examines the challenges and opportunities of this transition, including
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Electrochemical CO2 reduction to C2+ products over Cu/Zn intermetallic catalysts synthesized by electrodeposition Front. Energy (IF 2.9) Pub Date : 2023-10-20 Ting Deng, Shuaiqiang Jia, Shitao Han, Jianxin Zhai, Jiapeng Jiao, Xiao Chen, Cheng Xue, Xueqing Xing, Wei Xia, Haihong Wu, Mingyuan He, Buxing Han
Electrocatalytic CO2 reduction (ECR) offers an attractive approach to realizing carbon neutrality and producing valuable chemicals and fuels using CO2 as the feedstock. However, the lack of cost-effective electrocatalysts with better performances has seriously hindered its application. Herein, a one-step co-electrodeposition method was used to introduce Zn, a metal with weak *CO binding energy, into
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Conversion of polyethylene to gasoline: Influence of porosity and acidity of zeolites Front. Energy (IF 2.9) Pub Date : 2023-09-30 Chunyu Li, Haihong Wu, Ziyu Cen, Wanying Han, Xinrui Zheng, Jianxin Zhai, Jiao Xu, Longfei Lin, Mingyuan He, Buxing Han
Plastic waste is causing serious environmental problems. Developing efficient, cheap and stable catalytic routes to convert plastic waste into valuable products is of great importance for sustainable development, but remains to be a challenging task. Zeolites are cheap and stable, but they are usually not efficient for plastic conversion at a low temperature. Herein a series of microporous and mesoporous
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Emerging trends in self-healable nanomaterials for triboelectric nanogenerators: A comprehensive review and roadmap Front. Energy (IF 2.9) Pub Date : 2023-09-30 Prabhakar Yadav, Kuldeep Sahay, Malvika Srivastava, Arpit Verma, Bal Chandra Yadav
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Formic acid dehydrogenation reaction on high-performance PdxAu1−x alloy nanoparticles prepared by the eco-friendly slow synthesis methodology Front. Energy (IF 2.9) Pub Date : 2023-09-16 Yibo Gao, Erjiang Hu, Bo Huang, Zuohua Huang
Dehydrogenation of formic acid (FA) is considered to be an effective solution for efficient storage and transport of hydrogen. For decades, highly effective catalysts for this purpose have been widely investigated, but numerous challenges remain. Herein, the PdxAu1−x (x = 0, 0.2, 0.4, 0.5, 0.6, 0.8, 1) alloys over the whole composition range were successfully prepared and used to catalyze FA hydrogen
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Function-reversible facets enabling SrTiO3 nanocrystals for improved photocatalytic hydrogen evolution Front. Energy (IF 2.9) Pub Date : 2023-09-10 Bin Wang, Bei An, Xiaoqian Li, Shaohua Shen
It has been widely reported that, for faceted nanocrystals, the two adjacent facets with different band levels contribute to promoted charge separation, and provide active sites for photocatalytic reduction and oxidation reaction, respectively. In such cases, only one family of facets can be used for photocatalytic hydrogen evolution. Herein, by using SrTiO3 nanocrystals enclosed by {023} and {001}
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Surface modification by ligand growth strategy for dense copper bismuth film as photocathode to enhance hydrogen production activity Front. Energy (IF 2.9) Pub Date : 2023-08-30 Zhouzhou Wang, Qingwei Wu, Jieming Wang, Ying Yu
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Production of hydrogen from fossil fuel: A review Front. Energy (IF 2.9) Pub Date : 2023-08-20 Shams Anwar, Xianguo Li
Production of hydrogen, one of the most promising alternative clean fuels, through catalytic conversion from fossil fuel is the most technically and economically feasible technology. Catalytic conversion of natural gas into hydrogen and carbon is thermodynamically favorable under atmospheric conditions. However, using noble metals as a catalyst is costly for hydrogen production, thus mandating non-noble
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High-entropy catalysts for electrochemical water-electrolysis of hydrogen evolution and oxygen evolution reactions Front. Energy (IF 2.9) Pub Date : 2023-08-20 Simiao Sha, Riyue Ge, Ying Li, Julie M. Cairney, Rongkun Zheng, Sean Li, Bin Liu, Jiujun Zhang, Wenxian Li
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A review on different theoretical models of electrocaloric effect for refrigeration Front. Energy (IF 2.9) Pub Date : 2023-07-30 Cancan Shao, A. A. Amirov, Houbing Huang
The performance parameters for characterizing the electrocaloric effect are isothermal entropy change and the adiabatic temperature change, respectively. This paper reviews the electrocaloric effect of ferroelectric materials based on different theoretical models. First, it provides four different calculation scales (the first-principle-based effective Hamiltonian, the Landau-Devonshire thermodynamic
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In-MOF-derived In2S3/Bi2S3 heterojunction for enhanced photocatalytic hydrogen production Front. Energy (IF 2.9) Pub Date : 2023-07-30 Sibi Liu, Yijin Wang, Youzi Zhang, Xu Xin, Peng Guo, Dongshan Deng, Jahan B. Ghasemi, Miao Wang, Ruiling Wang, Xuanhua Li
Transition metal sulfides are commonly studied as photocatalysts for water splitting in solar-to-fuel conversion. However, the effectiveness of these photocatalysts is limited by the recombination and restricted light absorption capacity of carriers. In this paper, a broad spectrum responsive In2S3/Bi2S3 heterojunction is constructed by in-situ integrating Bi2S3 with the In2S3, derived from an In-MOF
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Three-dimensional composite Li metal anode by simple mechanical modification for high-energy batteries Front. Energy (IF 2.9) Pub Date : 2023-07-20 Min Hong, Zhiyong Wang, Zhangqin Shi, Zheng Liang
Lithium (Li) metal is believed to be the “Holy Grail” among all anode materials for next-generation Li-based batteries due to its high theoretical specific capacity (3860 mAh/g) and lowest redox potential (−3.04 V). Disappointingly, uncontrolled dendrite formation and “hostless” deposition impede its further development. It is well accepted that the construction of three-dimensional (3D) composite
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Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage, and utilization technology in China Front. Energy (IF 2.9) Pub Date : 2023-06-30 Jingjing Xie, Kai Li, Jingli Fan, Xueting Peng, Jia Li, Yujiao Xian
The coal-to-liquid coupled with carbon capture, utilization, and storage technology has the potential to reduce CO2 emissions, but its carbon footprint and cost assessment are still insufficient. In this paper, coal mining to oil production is taken as a life cycle to evaluate the carbon footprint and levelized costs of direct-coal-to-liquid and indirect-coal-to-liquid coupled with the carbon capture
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CC@BCN@PANI core-shell nanoarrays as ultra-high cycle stability cathode for Zn-ion hybrid supercapacitors Front. Energy (IF 2.9) Pub Date : 2023-06-20 Shixian Xiong, Hongcheng Ke, Lei Cao, Yu Wang, Qian Zhu, Liqin Zhong, Lanlan Fan, Feng Gu
Exploring cathode materials that combine excellent cycling stability and high energy density poses a challenge to aqueous Zn-ion hybrid supercapacitors (ZHSCs). Herein, polyaniline (PANI) coated boron-carbon-nitrogen (BCN) nanoarray on carbon cloth surface is prepared as advanced cathode materials via simple high-temperature calcination and electrochemical deposition methods. Because of the excellent
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Selective preparation for biofuels and high value chemicals based on biochar catalysts Front. Energy (IF 2.9) Pub Date : 2023-06-20 Hui Li, Changlan Hou, Yunbo Zhai, Mengjiao Tan, Zhongliang Huang, Zhiwei Wang, Lijian Leng, Peng Liu, Tingzhou Lei, Changzhu Li
The reuse of biomass wastes is crucial toward today’s energy and environmental crisis, among which, biomass-based biochar as catalysts for biofuel and high value chemical production is one of the most clean and economical solutions. In this paper, the recent advances in biofuels and high chemicals for selective production based on biochar catalysts from different biomass wastes are critically summarized
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Unknown fault detection for EGT multi-temperature signals based on self-supervised feature learning and unary classification Front. Energy (IF 2.9) Pub Date : 2023-06-20 Xilian Yang, Kanru Cheng, Qunfei Zhao, Yuzhang Wang
Intelligent power systems can improve operational efficiency by installing a large number of sensors. Data-based methods of supervised learning have gained popularity because of available Big Data and computing resources. However, the common paradigm of the loss function in supervised learning requires large amounts of labeled data and cannot process unlabeled data. The scarcity of fault data and a
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Ga(X)N/Si nanoarchitecture: An emerging semiconductor platform for sunlight-powered water splitting toward hydrogen Front. Energy (IF 2.9) Pub Date : 2023-06-20 Yixin Li, Sharif Md. Sadaf, Baowen Zhou
Sunlight-powered water splitting presents a promising strategy for converting intermittent and virtually unlimited solar energy into energy-dense and storable green hydrogen. Since the pioneering discovery by Honda and Fujishima, considerable efforts have been made in this research area. Among various materials developed, Ga(X)N/Si (X = In, Ge, Mg, etc.) nanoarchitecture has emerged as a disruptive
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Thoughts on strategies and paths to achieve carbon peaking and carbon neutrality in China Front. Energy (IF 2.9) Pub Date : 2023-06-10 Xiangwan Du
First, a brief introduction is made to the four basic judgments and understandings of the goals of “carbon peaking and carbon neutrality.” Then, an in-depth elaboration is provided on the eight major strategies for achieving the goals of “carbon peaking and carbon neutrality,” including conservation and efficiency priority, energy security, non-fossil energy substitution, re-electrification, resource
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P2P energy trading via public power networks: Practical challenges, emerging solutions, and the way forward Front. Energy (IF 2.9) Pub Date : 2023-05-10 Yue Zhou, Jianzhong Wu, Wei Gan
Peer-to-peer (P2P) energy trading is an emerging energy supply paradigm where customers with distributed energy resources (DERs) are allowed to directly trade and share electricity with each other. P2P energy trading can facilitate local power and energy balance, thus being a potential way to manage the rapidly increasing number of DERs in net zero transition. It is of great importance to explore P2P
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Flow and thermal modeling of liquid metal in expanded microchannel heat sink Front. Energy (IF 2.9) Pub Date : 2023-05-10 Mingkuan Zhang, Xudong Zhang, Luna Guo, Xuan Li, Wei Rao
Liquid metal-based microchannel heat sinks (MCHSs) suffer from the low heat capacity of coolant, resulting in an excessive temperature rise of coolant and heat sink when dealing with high-power heat dissipation. In this paper, it was found that expanded space at the top of fins could distribute the heat inside microchannels, reducing the temperature rise of coolant and heat sink. The orthogonal experiments
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A rank-based multiple-choice secretary algorithm for minimising microgrid operating cost under uncertainties Front. Energy (IF 2.9) Pub Date : 2023-04-30 Chunqiu Xia, Wei Li, Xiaomin Chang, Ting Yang, Albert Y. Zomaya
The increasing use of distributed energy resources changes the way to manage the electricity system. Unlike the traditional centralized powered utility, many homes and businesses with local electricity generators have established their own microgrids, which increases the use of renewable energy while introducing a new challenge to the management of the microgrid system from the mismatch and unknown
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A comprehensive review of wind power based power system frequency regulation Front. Energy (IF 2.9) Pub Date : 2023-04-25 Zhang Wen, Liangzhong Yao, Fan Cheng, Jian Xu, Beilin Mao, Rusi Chen
Wind power (WP) is considered as one of the main renewable energy sources (RESs) for future low-carbon and high-cost-efficient power system. However, its low inertia characteristic may threaten the system frequency stability of the power system with a high penetration of WP generation. Thus, the capability of WP participating in the system frequency regulation has become a research hotspot. In this
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A review on technologies with electricity generation potentials using liquified natural gas regasification cold energy Front. Energy (IF 2.9) Pub Date : 2023-03-30 Muhammad Tauseef Nasir, Mirae Kim, Jaehwa Lee, Seungho Kim, Kyung Chun Kim
In modern times, worldwide requirements to curb greenhouse gas emissions, and increment in energy demand due to the progress of humanity, have become a serious concern. In such scenarios, the effective and efficient utilization of the liquified natural gas (LNG) regasification cold energy (RCE), in the economically and environmentally viable methods, could present a great opportunity in tackling the
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Operando modeling and measurements: Powerful tools for revealing the mechanism of alkali carbonate-based sorbents for CO2 capture in real conditions Front. Energy (IF 2.9) Pub Date : 2023-03-21 Tianyi Cai, Mengshi Wang, Xiaoping Chen, Ye Wu, Jiliang Ma, Wu Zhou
Alkali carbonate-based sorbents (ACSs), including Na2CO3- and K2CO3-based sorbents, are promising for CO2 capture. However, the complex sorbent components and operation conditions lead to the versatile kinetics of CO2 sorption on these sorbents. This paper proposed that operando modeling and measurements are powerful tools to understand the mechanism of sorbents in real operating conditions, facilitating
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Liquid-based high-temperature receiver technologies for next-generation concentrating solar power: A review of challenges and potential solutions Front. Energy (IF 2.9) Pub Date : 2023-02-28 Ya-Ling He, Wenqi Wang, Rui Jiang, Mingjia Li, Wenquan Tao
To reduce the levelized cost of energy for concentrating solar power (CSP), the outlet temperature of the solar receiver needs to be higher than 700 °C in the next-generation CSP. Because of extensive engineering application experience, the liquid-based receiver is an attractive receiver technology for the next-generation CSP. This review is focused on four of the most promising liquid-based receivers