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Epitope imprinted electrochemical sensor for highly sensitive detection of alpha-fetoprotein Electrochim. Acta (IF 6.6) Pub Date : 2024-03-11 Huikai Shao, Zhenping Liu
A selective and sensitive epitope imprinted electrochemical sensor for the precise quantification of alpha-fetoprotein was developed through electropolymerization by using the C-terminus of alpha-fetoprotein as the template and o-phenylenediamine as the functional monomer. The prepared epitope molecularly imprinted polymer film was characterized by the scanning electron microscope, cyclic voltammetry
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A simple and reliable electrochemical method employing an unmodified boron-doped diamond electrode for the determination of triclocarban Electrochim. Acta (IF 6.6) Pub Date : 2024-03-11 Guinther Schlösser Schmitz, Edson Roberto Santana, Luan Gabriel Baumgarten, João Paulo Winiarski, Matheus Cachoeira Colaço, Giovanni Finoto Caramori, Almir Spinelli, Iolanda Cruz Vieira
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Composite Anion Exchange Membranes based on Graphene Oxide for Water Electrolyzer Applications Electrochim. Acta (IF 6.6) Pub Date : 2024-03-11 Nicholas Carboni, Lucia Mazzapioda, Angela Caprì, Irene Gatto, Alessandra Carbone, Vincenzo Baglio, Maria Assunta Navarra
Anion Exchange Membrane Water Electrolyzers (AEMWE) hold the promise of combining the advantages of both liquid alkaline and PEM technologies, offering higher purity hydrogen production, improved efficiency, and dynamic behaviour. Nevertheless, AEM systems face notable challenges, particularly in enhancing the ion conductivity and stability of the membrane. The alkaline chemical stability of the AEMs
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A Comparative Study of Chemically Oxidized Carbon Cloth and Thermally Treated Carbon Paper Electrodes applied on Aqueous Organic Redox Flow Batteries Electrochim. Acta (IF 6.6) Pub Date : 2024-03-11 Luana C.I. Faria, Graziela C. Sedenho, Thiago Bertaglia, Lucyano J.A. Macedo, Frank N. Crespilho
Aqueous organic redox flow batteries (AORFBs) are emerging as promising candidates for efficient energy storage in grid-scale applications. In this study, we present a comprehensive analysis comparing the performance of thermally treated carbon paper and chemically oxidized carbon cloth electrodes, which have been extensively examined for their potential suitability in AORFBs. Results indicate that
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Voltammetric quantification of H:Pd ratio complicated by α↔β phase transition in PdHx: electrodes with low Pd loadings Electrochim. Acta (IF 6.6) Pub Date : 2024-03-11 Arnaud Viola, Frédéric Maillard, Galina Tsirlina
The Pd hydride (PdH) is a typical system to study the fundamentals of solute intercalation and phase transformations or to determine the effect of strain on the rate of electrocatalytic reactions. A crucial methodological aspect, however, involves quantitatively determining the hydrogen-to-palladium atomic ratio (H:Pd) under experimental conditions where various incidental contributions to the total
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Electrode thickness dependence of charge–discharge performance and reaction distribution of an in-situ-formed solid electrolyte for MgH2 anodes Electrochim. Acta (IF 6.6) Pub Date : 2024-03-11 Yixin Chen, Atsushi Inoishi, Kazuki Yoshii, Hiroki Sato, Shigeto Okada, Hikari Sakaebe, Ken Albrecht
MgH conversion anodes are considered promising anode active materials for use in lithium batteries because of their high theoretical lithium storage capacity and suitable redox potential. In a previous study, MgH was clarified to function as an anode material that forms a solid electrolyte and to work without an electrolyte added to the composite electrode because of the formation of LiH with an ionic
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An electrochemical paper-based analytical device with facile carbon fiber-sewed electrodes for highly sensitive detection of hydrogen peroxide in real water Electrochim. Acta (IF 6.6) Pub Date : 2024-03-10 Yang Wang, Dingding Ye, Yang Xu, Xun Zhu, Yang Yang, Rong Chen, Qiang Liao
A novel and facile method by sewing low-cost fiber electrodes on paper is proposed to fabricate electrochemical paper-based analytical devices (ePADs). Prussian Blue (PB) and Ag/AgCl were deposited on carbon fibers to prepare the working and reference electrodes. The hydrophilic carbon fiber was employed as the counter electrode. All electrodes were sewed on the paper substrate. The linear voltammetry
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Study on hydrogen permeation and stress corrosion cracking behaviors of AISI 4135 high-strength steel with macrofouling adhesion in marine immersion zone Electrochim. Acta (IF 6.6) Pub Date : 2024-03-10 Fanfan Cai, Yanliang Huang, Yong Xu, Yu Xin, Jiayan Pu, Xiangjv Liu, Xiutong Wang, Yantao Li, Lihui Yang
A field exposure test was set up to study the effect of macrofouling adhesion on hydrogen permeation and stress corrosion cracking (SCC) behaviors of a high-strength steel in marine immersion zone, and the results were further verified by laboratory electrochemical simulation tests. The results indicated that the crevices formed by macrofouling adhesion can promote localized corrosion pits and change
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Microbiologically Influenced Corrosion Can Cause a Dental Implant Rejection Electrochim. Acta (IF 6.6) Pub Date : 2024-03-10 Eleonora Hubenova, Mario Mitov, Yolina Hubenova
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Electrolyte design for the manipulation of gas bubble detachment during hydrogen evolution reaction Electrochim. Acta (IF 6.6) Pub Date : 2024-03-10 Sunghak Park, Detlef Lohse, Dominik Krug, Marc T.M. Koper
During electrochemical gas evolution reactions, the continuous and vigorous formation of gas bubbles hugely impacts the efficiency of the underlying electrochemical processes. In particular, enhancing the detachment of gas bubbles from the electrode surface has emerged as an effective strategy to improve reaction efficiency. In this study, we demonstrate that the detachment of H gas bubbles can be
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Three-dimensional hierarchical nanosheets based spherical bismuth metal-organic frameworks: controllable synthesis and high performance for supercapacitor Electrochim. Acta (IF 6.6) Pub Date : 2024-03-10 Lei Wang, Qihang He, Feng Xiao, Lu Yang, Yu Jiang, Rong Su, Ping He, Hong Lei, Bin Jia, Bin Tang
Metal-organic frameworks (MOFs) are considered as promising electrode materials in energy storage applications because of tunable chemical composition, large internal pore volume and high specific surface area. In this work, Bi-MOF materials with different molar ratios of Bi/benzene-1,3,5-tricarboxylic acid (HBTC) are successfully prepared by solvothermal method. When the molar ratio of Bi/HBTC is
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Maintaining the order: 4,4’-bipyridine self-assembled layers on the Bi(111) | ionic liquid interface Electrochim. Acta (IF 6.6) Pub Date : 2024-03-10 Heigo Ers, Liis Siinor, Piret Pikma
The organised layer of molecules on a solid surface is at the centre of numerous molecular devices. Although the adsorption of molecules from aqueous electrolytes has been thoroughly investigated, only a limited number of studies focus on the adsorption from ionic liquid electrolytes. This paper characterises the 4,4’-bipyridine adsorption at the Bi(111) | ionic liquid interface. We combined electrochemical
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Atom-Pd Catalysts Supported by Hollow N-doped Carbon Nanospheres for Ultra-efficient Nitrogen Reduction Reaction Electrochim. Acta (IF 6.6) Pub Date : 2024-03-10 Chuxin Huang, Rui Xu, Yuchao Li, Haofei Huang, Yanxia Zheng, Weifeng Rong, Jianming Lin, Jihuai Wu
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Decoration on the inner surface of low-tortuosity microchannels derived from wood plate for highly stable lithium sulfur batteries Electrochim. Acta (IF 6.6) Pub Date : 2024-03-09 Yinglin Yan, Xingsheng Zhang, Wei Jing, Pufang Liu, Muze Song, Chaojiang Fan, Rongfu Xu, Yiming Zou, Wei Yu, Qijiu Deng, Xianhui Wang, Lisheng Zhong, Rong Yang, Yunhua Xu
A layer of cellulose aerogel was regenerated from the wood wall and then coated on the inner surface of the low-tortuosity microchannels of the wood plate. After carbonization and sulfur loading, the fabricated free-standing cathode exhibited extraordinary cycling stability at 1 C even under a satisfactory sulfur loading of 6.3 mg cm. [Display omitted]
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Impact of Reactor Architecture and Design Parameters on the Performance of Microbial Electrolysis Cells Revealed by the Electrode Potential Slope Analysis Electrochim. Acta (IF 6.6) Pub Date : 2024-03-08 Luguang Wang, Hongang Du, Amal Farghal Noreldein Elsyed, Nakyeong Yoon, Xu Wang, Ruggero Rossi
Microbial electrolysis cells (MECs) are appealing for recovering the chemical energy contained in domestic and industrial liquid wastes as hydrogen gas. Despite several years of research in the field, there is still a lack of critical analysis of how the reactor architecture dictates the electrochemical performance of MECs. In this study, internal resistance and onset voltage from the electrode potential
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Quantifying effect of faradaic imbalance and crossover on capacity fade of vanadium redox flow battery Electrochim. Acta (IF 6.6) Pub Date : 2024-03-08 Pavel Loktionov, Alla Pustovalova, Roman Pichugov, Dmitry Konev, Anatoly Antipov
In this work, we aimed to reveal two main contributors to the capacity fade of a vanadium redox flow battery (VRFB). These contributors are the oxidative imbalance caused by the hydrogen evolution reaction (HER) competing with V reduction during charging, and crossover, particularly the net transfer of vanadium ions from negolyte to posolyte. To investigate this, we performed VRFB cycling under various
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Corrigendum to “Development of dicationic 1,2,4-triazolium salts and their application as solid-state electrolyte for energy storage” Electrochimica Acta 482 (2024), 143974 Electrochim. Acta (IF 6.6) Pub Date : 2024-03-07 Sushmita Sushil, Harigovind Vijayakumar, Anjitha Satheesh, Elango Kandasamy
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Corrigendum to “Investigation of the passive film of nanocrystalline 304 stainless steel in 3.5 wt% NaCl solution under hydrostatic pressure” Electrochimica Acta 481 (2024) 143981 Electrochim. Acta (IF 6.6) Pub Date : 2024-03-07 Hongyu Ma, Ning Yang, Yu Cui, Rui Liu, Fuhui Wang, Li Liu
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Carbon dioxide reduction in solid oxide electrolyzer cells utilizing nickel bimetallic alloys infiltrated into Gd0.1Ce0.9O1.95 (GDC10) scaffolds Electrochim. Acta (IF 6.6) Pub Date : 2024-03-06 Ahmad Abu Hajer, Damilola A. Daramola, Jason P. Trembly
This study evaluates the electrochemical performance of GdCeO (GDC10) cathodes infiltrated with bimetallic Ni-Co and Ni-Cu alloy electrocatalysts for CO electroreduction in solid oxide electrolyzer cells (SOECs). The electrochemical reduction performance of SOECs with cathodes infiltrated with Ni-Co and Ni-Cu alloys were compared to the performance of SOECs having cathodes infiltrated with Ni, Co,
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In situ preparation of Fe-doped NiMoO4 nanoflower clusters as efficient electrocatalysts for oxygen evolution reaction and overall water splitting Electrochim. Acta (IF 6.6) Pub Date : 2024-03-06 Quanxin Yue, Ruihua Guo, Ruifen Wang, Guofang Zhang, Yarong Huang, Lili Guan, Wenyu Zhang, Tuoya Wuren
Water electrolysis for hydrogen production has attracted significant scientific interest because it is sustainable, pure, and environmentally benign. Nevertheless, the slow rate of the oxygen evolution reaction (OER) during electrolytic water splitting greatly impedes the progress of its development, leading to higher energy consumption and higher costs during hydrogen production. Herein, Fe-doped
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Reaction-separation anode for enhancement of fuel diffusion against CO2 evolution to improve performance of direct liquid-feed fuel cells Electrochim. Acta (IF 6.6) Pub Date : 2024-03-06 Yan Li, Rui Li, Bin Hong Liu, Zhou Peng Li
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The impact of 3-dimensional anode geometry on the electrochemical response of high temperature gas evolution reactions in molten salts Electrochim. Acta (IF 6.6) Pub Date : 2024-03-06 Jessica Allen, William Cranney, Dylan Cuskelly, Simin Moradmand
Bulk electrodes are used in molten salt electrolysis as consumable graphite anodes for existing aluminium production (producing CO) as well as for oxygen evolution anodes in future zero emission manufacturing processes, such as direct iron electrolysis. Here, graphite electrodes with different geometry, roughness, density, and size were assessed for their kinetic behaviour and gas evolution stability
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Use of plant extracts in fabricating manganese-based film electrode for capacitor Electrochim. Acta (IF 6.6) Pub Date : 2024-03-05 Indra W. Fathona, Abrar Ismardi, Hanifa Ajeng Supartiwi, Akihiro Yabuki
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Zinc ion storage abilities of Mo3WOx nano-ceramic under extreme-cold environments Electrochim. Acta (IF 6.6) Pub Date : 2024-03-05 Sai Wang, Dongxun Liu, Yiming Gao, Jiayu Liang, Rongyu Zhang, Xu Yang
It is imperative to develop new electrode materials for aqueous multivalent metal ion batteries with electrochemistry abilities at extreme-low temperatures due to the possible extreme-cold operating conditions of batteries in the present or the future. Herein, as a proof-of-concept experiment, a new orthorhombic molybdenum-tungsten oxide (MoWO) is synthesized by a wet-chemical method and tested as
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Nanozyme-coupled photoelectrocatalytic system based on peroxidase-mimetic BiOI cathode and WO3 photoanode for efficient degradation of 3-chlorophenol Electrochim. Acta (IF 6.6) Pub Date : 2024-03-04 Shiquan Li, Jianqiao Liu, Xuqiao Liu, Kai Yan, Jingdong Zhang
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Kinetics of electrochemical Eu3+ to Eu2+ reduction in aqueous media Electrochim. Acta (IF 6.6) Pub Date : 2024-03-04 Meryem Özge Arman, Bart Geboes, Karen Van Hecke, Koen Binnemans, Thomas Cardinaels
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Combined colorimetric and electrochemical screening method using 3D printed devices: Towards the selective detection of MDMA in forensic samples Electrochim. Acta (IF 6.6) Pub Date : 2024-03-04 Larissa M.A. Melo, Lucas V. de Faria, Luciano C. Arantes, Eduardo M. Richter, Rodrigo A.A. Munoz, Wallans T.P. dos Santos
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Equivalent circuits in nanopore-based electrochemical systems Electrochim. Acta (IF 6.6) Pub Date : 2024-03-04 Patricio Ramirez, Javier Cervera, Vladimir García-Morales, Saima Nasir, Mubarak Ali, Wolfgang Ensinger, Salvador Mafe
Single-nanopore membranes constitute physical models for biological ion channels and are also central to electrochemical energy transducers, logical circuits in sensors and actuators, and converters in bioelectrical interfaces. The membrane potential, defined as the electrical potential difference established between two different ionic solutions separated by the membrane, is crucial for the electrical
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One-step generation of hollow graphitic carbon nanospheres with suitable oxygenated structures as conductive additives for water-soluble binder in highly stable supercapacitor electrodes Electrochim. Acta (IF 6.6) Pub Date : 2024-03-04 Tzu-Hsien Hsieh, Ting-Jui Chang, Yun-Hsiang Lin, Jarrn-Horng Lin
Although the weight ratio of electron conductive additives and the binder to porous carbons in the electrode component of electric double-layer capacitors (EDLC) is minimal, however, without them the electrochemical performances of EDLC would decay quickly. In this work, we present a one-step approach for manufacturing a unique conductive carbon material that shows highly connecting hollow structures
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Spatial distribution characteristics in segmented PEM fuel cells: Three-dimensional full-morphology simulation Electrochim. Acta (IF 6.6) Pub Date : 2024-03-04 Guobin Zhang, Zhiguo Qu, Ning Wang, Yun Wang
Segmented proton exchange membrane (PEM) fuel cells are widely implemented in measuring their internal spatially distributed variables (e.g. current density and temperature). However, the difference between the segmented and ordinary fuel cells in spatial distribution characteristics has not been fully understood. In this work, we studied the spatial distribution characteristics in segmented fuel cells
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Designing air-stable vanadium tetrasulfides anode materials via C[sbnd]O[sbnd]S bonding for potassium-ion and sodium-ion batteries Electrochim. Acta (IF 6.6) Pub Date : 2024-03-04 Shuyue Li, Liqing Xu, Yong Li, Liping Chen, Juan Wang
The table of contents shows that the VS wrapped with reduced graphene oxide COS bonding is beneficial to promote air-stability, enhance electronic conductivity, and enrich active sites, resulting in superior cycle performances for both Na and storage.
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Chitosan-covered spherical natural graphite: A perfect carbon source for efficient non-PGM catalysts for electrocatalysis Electrochim. Acta (IF 6.6) Pub Date : 2024-03-04 Yanhui Sun, Wanli Xu, Wen Feng, Mengying Liu, Jingjun Liu
Developing non-precious metal catalysts to replace Pt-based catalysts for oxygen reduction reaction (ORR) is a hotspot presently, and transition metal-nitrogen co-doped carbon (TMNC) materials have been deemed as the most promising candidates. In this work, chitosan-derived-curved-carbon covered natural spherical graphite (SG) with a well-defined core-shell structure were prepared via hydrothermal
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Bipolar membrane Electrolyzer for CO2 electro-reduction to CO in organic electrolyte with NaClO produced as byproduct Electrochim. Acta (IF 6.6) Pub Date : 2024-03-04 Fengxia Shen, Shuai Wu, Pengchong Zhao, Yunfei Li, Shipeng Miao, Jianxiong Liu, David Ostheimer, Thomas Hannappel, Tianyou Chen, Jin Shi
A novel electrolyzer has been proposed for CO reduction to CO, concurrently generating NaClO as a byproduct at the anode. The cell is divided into two compartments by a bipolar membrane, which plays a pivotal role in the dissociation of HO into H and OH. In the cathode compartment, CO is reduced to CO within a neutral organic solution. Simultaneously, in the anode compartment, Cl undergoes oxidation
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Ultrafast room-temperature construction of hierarchical hollow rodlike nanoarrays based on amorphous NiFeCo layered double hydroxide toward enhanced oxygen evolution reaction Electrochim. Acta (IF 6.6) Pub Date : 2024-03-03 Xiankun Xu, Yanhu Jiang, Kaiwen Cheng, Junen Wang
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Mesoporous nanoplates consisting of seamless graphene frameworks Electrochim. Acta (IF 6.6) Pub Date : 2024-03-03 Tianshu Liu, Rikuto Kaku, Zheng-Ze Pan, Mao Ohwada, Kritin Pirabul, Baohua Li, Hirotomo Nishihara
Electric double-layer capacitors (EDLCs) have attracted significant attention in the field of energy storage due to their high specific power, superior safety, and long cycle life. However, commercially available electrode materials, such as activated carbons, are still facing the challenge of low energy density. Graphene mesosponge (GMS) has shown promise as an electrode material for EDLCs due to
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Fe N doped carbon materials from oily sludge as electrocatalysts for alkaline oxygen reduction reaction Electrochim. Acta (IF 6.6) Pub Date : 2024-03-02 Sara Jerez, Angus Pedersen, María Ventura, Lorenzo Mazzoli, María Isabel Pariente, Magdalena Titirici, Juan Antonio Melero, Jesús Barrio
Alkaline oxygen reduction reaction (ORR) presents an important role for energy conversion technologies and requires the development of an efficient electrocatalyst. Pt-based catalysts provide suitable activity; however, Pt production accessibility and high costs create hurdles to their commercial implementation. Fe coordinated within N-doped carbon materials (FeNC) are a promising alternative due to
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Deposition and removal of manganese oxide in zinc electrowinning Electrochim. Acta (IF 6.6) Pub Date : 2024-03-02 Siri Marie Skaftun, Svein Sunde, Geir Martin Haarberg, Frode Seland
Zinc electrowinning in sulfate-based electrolytes produces zinc at the cathode and oxygen gas at the anode. Lead anodes are commonly used despite its low activity towards oxygen evolution and potential environmental hazards. Recent advances in materials for oxygen evolution in acidic electrolytes offers a wide variety of alternative anode catalysts with much higher performance than lead. However, significant
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Electrochemical detection of quinone reduced by Complex I Complex II and Complex III in full mitochondrial membranes Electrochim. Acta (IF 6.6) Pub Date : 2024-03-01 Daniel G. Cava, Julia Alvarez-Malmagro, Paolo Natale, Sandra López-Calcerrada, Iván López-Montero, Cristina Ugalde, Jose Maria Abad, Marcos Pita, Antonio L. De Lacey, Marisela Vélez
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Evidence of Transient Potentials in Ion-Selective Electrodes based on Thin-Layer Ion-Exchange Membranes Electrochim. Acta (IF 6.6) Pub Date : 2024-03-01 Andres F. Molina-Osorio, Gaston A. Crespo, Maria Cuartero
Polymeric membranes with ion-exchange properties have found numerous applications in water treatment, dialysis, energy storage, chemical sensors, and bio-interfaces, among others. Notably, it is common to operate under non-equilibrium conditions while pursuing specific features (e.g., current generation) through an electron-to-ion mechanism. To maximize the final performance, it is crucial to understand
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A Mott-Schottky analysis of mesoporous silicon in aqueous electrolyte solution by electrochemical impedance spectroscopy Electrochim. Acta (IF 6.6) Pub Date : 2024-03-01 Manuel Brinker, Patrick Huber
Nanoporosity in silicon leads to completely new functionalities of this mainstream semiconductor. In recent years, it has been shown that filling the pores with aqueous electrolytes, in addition opens a particularly wide field for modifying and achieving active control of these functionalities, e.g., for electrochemo-mechanical actuation and tunable photonics, or for the design of on-chip supercapacitors
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In-situ polymerisation of fluorene to achieve theoretical capacity in LiFePO4 cells Electrochim. Acta (IF 6.6) Pub Date : 2024-03-01 Hongliang Zhang, Xin Song, Yuguang Pu, Muge Ding, Wen Zhang, Peng Cao
This study aims to enhance the electrochemical properties of solid-state lithium-ion batteries by modifying the cathode material, LiFePO (LFP), via fluorene addition and polymerisation. The first modification process involves creating a shell structure (the film thickness of 10 nm) around each LFP particle and establishing a net-like structure to connect the particles before the polymerisation. Then
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Single-pot synthesis of Nb2O5-V2O5 nanocomposite for advanced charge storage applications: Unveiling morphological, structural and electrochemical insights Electrochim. Acta (IF 6.6) Pub Date : 2024-03-01 M. Revathi, R.Biju Bennie, C. Joel, K. Narayanan, Mohd Shahnawaz Khan, Yedluri Anil Kumar
The present study is focused on the synthesis of NbO-VO nanocomposite for the charge storage applications. The X-ray diffraction patterns of the materials revealed the orthorhombic phase formation of NbO showing spherical morphology that was observed from scanning electron microscopic images. FTIR investigations were used to determine the structural characteristics of the composite material. The surface
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Tailoring the pore accessibility using proteins in laser induced porous graphitic structures: Correlating the physicochemical & electrochemical characteristics Electrochim. Acta (IF 6.6) Pub Date : 2024-02-29 Raghavv Raghavender Suresh, Gorachand Dutta
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Improving LiFePO4 cathode stability in lithium-ion batteries by hybridizing activated tannic with PEDOT:PSS binders Electrochim. Acta (IF 6.6) Pub Date : 2024-02-29 Shuanghui Li, Xian Zhang, Bolin Chen, Zhenyuan Shi, Shuru Wu, Chenyu Wang, Qingsong Tong, Mengqi Zhu, Jingzheng Weng
The conventional binder polyvinylidene fluoride (PVDF) exhibits substantial polarization resistance at high magnification because of its inertness to Li and electrons. In addition, 1-methyl-2-pyrrolidinone (NMP) solvents are toxic, expensive, and environmentally harmful. In this study, we enhanced the poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS) binder by incorporating varying
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Hydrated LiOH modified Ni0.1Fe0.9PS3 anodes towards safer high-performance lithium-ion batteries Electrochim. Acta (IF 6.6) Pub Date : 2024-02-29 Syama Lenus, Liu Yaoda, Pallavi Thakur, Ashique Lal, Sai Smruti Samantaray, Zhengfei Dai, Tharanagttu N Narayanan
A facile safer strategy for stable, high-capacity sulfide-based anodes is proposed here using hydrated LiOH additives, bringing multiple favorable attributes to the electrode. [Display omitted]
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A Closed Bipolar Electrochemical Cell for the Interrogation of BDD Single Particles: Electrochemical Advanced Oxidation Electrochim. Acta (IF 6.6) Pub Date : 2024-02-29 Anna Dettlaff, Joshua Tully, Georgia Wood, Deep Chauhan, Ben Breeze, Lijiang Song, Julie V. Macpherson
A closed bipolar electrochemical cell containing two conductive boron-doped diamond (BDD) particles of size ∼ 250 – 350 μm, produced by high-pressure high-temperature (HPHT) synthesis, has been used to demonstrate the applicability of single BDD particles for electrochemical oxidative degradation of the dye, methylene blue (MB). The cell is fabricated using stereolithography 3D printing and the BDD
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Electrical and structural engineering of nanoflower-like NiMn-layered double hydroxide by V modulation for high-performance hybrid supercapacitors Electrochim. Acta (IF 6.6) Pub Date : 2024-02-29 Zhuoran Hou, Huayu Zhang, Xinsheng Zhou, Jie Yu
This work produced V-doped NiMn-layered double hydroxide(V-NiMnLDH) composite positive electrode material directly on nickel foam using a simple one-step hydrothermal synthesis process. The composite's 3D nanoflower-like design increased spatial utilization, surface area, and active sites for Faradaic redox reactions. The composite material has a specific capacitance of 1551 F g at 1 A g and 85.6 %
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Two-step electrodeposition synthesis of nano-clustered Ni@NiCo-LDH heterostructure as cathodes for high-performance hybrid supercapacitors Electrochim. Acta (IF 6.6) Pub Date : 2024-02-29 Rui Yu, Zhaokuan Li, Yongzhi Lan, Qing Wang, Jianfeng Dai, XueFeng Lu
In situ-grown porous structures enhance electrode material contact area with electrolyte, decrease ion propagation distance, as well as improve the electrochemical properties of electrode materials. The Ni@NiCo-LDH/CF heterostructure was effectively built by employing copper foam as the collector, the Ni layer as a connecting layer as a super channel for electron transport, and then secondary electrodeposition
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The effect of FeNC catalysts on the conversion kinetics and retention of lithium polysulfides for lithium-sulfur battery Electrochim. Acta (IF 6.6) Pub Date : 2024-02-29 Sajad Rahimi, Nicolas Bibent, Frédéric Jaouen, Cristina Iojoiu, Lauréline Lecarme, Fannie Alloin
FeNC material comprising single-iron-atom sites was evaluated as a sulfur host in a positive electrode for Li–S batteries application. The FeNC belongs to the broad class of Metal-N-C materials, with good electronic conductivity, high surface polarity, and demonstrated activity toward O and CO reduction reactions. The FeNC catalyst shows significantly higher kinetics on lithium polysulfide conversion
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Evaluation of graphite felt activation and aging by electroanalysis at microfiber electrodes Electrochim. Acta (IF 6.6) Pub Date : 2024-02-29 Ranine El Hage, Vincent Feynerol, Mariela Brites Helú, Rafael Luan Sehn Canevesi, Alain Celzard, Vanessa Fierro, Liang Liu, Mathieu Etienne
Microfiber electrodes, derived from graphite felt, were used for the evaluation of charge transfer kinetic constants in a ferrocyanide-based electrolyte, which is a model system for redox flow batteries. Cyclic voltammetry experiments were performed in the presence of 10 M or 0.5 M Fe(CN). Within this framework, microfiber electroanalysis allowed for the quantitative assessment of four distinct activation
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One-step synthesizing Ti3C2Tx doped with slight amount of Ni2+ to enhance the electrochemical stability Electrochim. Acta (IF 6.6) Pub Date : 2024-02-29 Xinru Pan, Qiang Wang, Yunzhen Chang, Ying Zhang, Sheng Zhu, Gaoyi Han
Two-dimensional layered material of TiCT has attracted widespread attention due to its high conductivity, rich surface functional groups and excellent hydrophilicity. However, its practical application is hindered by the problems of re-stacking and the instability rooted from easy oxidation of low valent Ti. Here, a simple synthesis strategy that the surface of TiCT is decorated by Ni has been developed:
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Investigations of the relationships between structure and electrochemical properties of fullerenol nanoaggregates Electrochim. Acta (IF 6.6) Pub Date : 2024-02-29 João Paulo Vita Damasceno, Dagwin Wachholz Junior, Felipe Barbosa Marques, Lauro Tatsuo Kubota
Hybrid materials containing fullerenols have been used as electrodes in many applications, such as electrochemical biosensors for different targets or in hydrogen and oxygen reduction reactions. However, electrodes modified with fullerenols and without other electroactive materials are not much explored, and the electrochemical behavior of fullerenols themselves is not well-established in the literature
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Electrochemically produced films based on individual porphyrins and bimetallic composites: Morphology and electrocatalytic properties in the reaction of oxygen electroreduction Electrochim. Acta (IF 6.6) Pub Date : 2024-02-28 Sergey M. Kuzmin, Svetlana A. Chulovskaya, Mariya V. Tesakova, Oskar I. Koifman, Vladimir I. Parfenyuk
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Poly(ethylene glycol)(PEG)-cryogels: A novel platform towards enzymatic electrochemiluminescence (ECL)-based sensor applications Electrochim. Acta (IF 6.6) Pub Date : 2024-02-28 Lucia Simona Ferraraccio, James Russell, Ben Newland, Paolo Bertoncello
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A one-dimensional numerical model of carbon corrosion in catalyst layers of proton exchange membrane fuel cells Electrochim. Acta (IF 6.6) Pub Date : 2024-02-28 Enci Dong, Sida Cao, Ruiyuan Zhang, Li Chen, Wen-Quan Tao
Understanding interaction between carbon corrosion and physicochemical processes inside proton exchange membrane fuel cells (PEMFCs) is important. A one-dimensional carbon corrosion model considering cathode catalyst layer (CCL) structure evolutions is established and coupled with one-dimensional PEMFC performance model. The coupled model is validated and employed to predict CCL structure evolution
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Recycling of protective layer of Ni rich layered oxide material in Li ion batteries Electrochim. Acta (IF 6.6) Pub Date : 2024-02-28 Chanjoo Park, Kwangjin Park
We investigated the recycling of protective layer of Ni rich layered oxide–material used in Li ion batteries. Decreasing electrochemical performance of the cathode powder while leaving the powder in air was confirmed by various analyses and was found to be due to the formation of lithium residuals. The surface of the protective layer of Ni rich layered oxide was covered by the lithium residuals and
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Tween-20 induced self-healing deposition towards ultra-stable Zn electrode Electrochim. Acta (IF 6.6) Pub Date : 2024-02-28 Mingqin Zhao, Rui Song, Xin Gao, Shuai Wang, Yao Lu, Lei Gou, Xiaoyong Fan
Zn-ion battery has revealed potential application in grid energy storage due to the high energy density, cost effectiveness and intrinsic safety. However, its large-scale application is hindered by the unstable Zn electrode caused by the continuous zinc dendrites growth. Herein, Tween-20 is selected as a functional additive of electrolyte to enhance the stability of Zn electrode through inducing self-healing
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Enzyme-free glucose sensor based on electrodeposition of multi-walled carbon nanotubes and Zn-based metal framework-modified gold electrode at low potential Electrochim. Acta (IF 6.6) Pub Date : 2024-02-27 Yu-Ting Xue, Zhencheng Chen, Xin Chen, Guo-Cheng Han, Xiao-Zhen Feng, Heinz-Bernhard Kraatz
A non-enzymatic glucose sensor was successfully prepared by the electrodeposition methods assembling of Zn-metal-organic frameworks/multi-walled carbon nanotubes (Zn-MOF/MWCNTs) on gold electrode (GE). The sensor showed better catalytic oxidation performance for glucose at very low potential (0.20 V) compared to the bare GE (0.30 V), because the modified complex can effectively increase the active
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Novel TiO2 nanoparticle-based sensor for xanthate quantification in mineral flotation samples Electrochim. Acta (IF 6.6) Pub Date : 2024-02-27 Javier E. Vilasó-Cadre, Iván A. Reyes-Domínguez, Pandiyan Thangarasu, Roel Cruz, Emmanuel J. Gutiérrez-Castañeda, Javier Aguilar-Carrillo, Lázaro A. González-Fernández, Néstor Castillo-Magallanes
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Electrochemical degradation of the hydrogen-absorption-induced passive film on an Ni–Ti superelastic alloy in an NaCl solution Electrochim. Acta (IF 6.6) Pub Date : 2024-02-27 Seo-Young Rho, Jun-Seob Lee, Kuga Ando, Hengjie Zhu, Seung-Hoon Baek, Jae Deok Kim, Jungjae Park, Sung Kang, Ken'ichi Yokoyama
This study was conducted to investigate the effects of electrochemically generated hydrogen on the passivation behaviour of Ni–Ti alloy surfaces. Hydrogen charging via galvanostatic polarisation increased the passive current density during cyclic potentiodynamic polarisation experiments. Electrochemical impedance spectroscopy and Mott–Schottky analyses revealed an increase in the electrochemical conductivity