Pseudocapacitive materials have been employed in supercapacitors owing to their high specific capacitance. Nevertheless, high-level ultrafast capabilities are emphasized to overcome their rapid capacitance degradation under ultrafast-rate ion diffusion conditions. We demonstrated rational HO deintercalation effects on cobalt vanadium oxide hydrate (CVOH) with increasing temperature. As the temperature

Antimony (Sb) is an attractive anode material for sodium-ion batteries (SIBs) owing to its low operating potential, low cost, and high theoretical capacity. However, the large volume expansion of Sb during the Na alloying/dealloying process, which greatly limits its application in SIBs. Simultaneously, as the temperature decreases, the formation of a poor coating on the anode surface significantly

Ultrathin catalytical silicon nanowires (SiNWs), grown as orderly arrays upon glass substrates, are ideal 1D channels for the construction of high-performance field effect transistors for low-power and high aperture/transparency electronics. In this work, a rather uniform growth integration of high-density ultrathin SiNWs has been accomplished directly on glass substrate at 290 °C, via an in-plane

Efficient and durable oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) bifunctional electrocatalysts are critical for the development of zinc-air battery (ZAB). Unfortunately, conventional commercial catalysts usually display selective activity in only one reaction and cannot efficiently catalyze the two reactions at the same time. In this paper, porous carbon nanosheets loaded CoN

The photocatalytic performance of the multilayered NiFe LDH/Activated Carbon was evaluated for the degradation of methylene blue (MB) in industrial textile wastewater, considering prior adsorption on the photocatalyst surface. The XRD, XPS, BET, TEM and FE-SEM results confirmed that the highly exposed mesoporous layers, carbon backbone, and interlayer anions serve as active sites responsible for the

Simulating natural photosynthesis to convert CO and HO into fuels achieving overall reaction is a promising solution for addressing environmental problems and energy crises. Constructing an S-scheme catalyst of two or more catalytic sites with rapid electron transfer and strong redox capability may be an effective strategy for coupling photocatalytic CO reduction and HO oxidation. Here, an oxygen vacancies-rich

It is important to prepare self-lubricating polymers with low friction coefficient and wear rate. Herein, poly(p-phenylene-2,6-benzobisoxazole) fibers coated with polydopamine (PBO@PDA) were synthesized and introduced to enhance the tribological performances of the UHMWPE composites. The PBO@PDA, with a rough surface and a PDA layer of 13 nm thickness, exhibited a robust interfacial interaction with

Catalyst addition can improve system after treatment efficiency of pollutants purification. In this study, the performance of (Mn, Hf) co-doped Ce-based catalysts has been investigated in oxidation to mitigate CO emission of engines. A series of Ce-Mn-Hf-O with different metal ratios (Ce: Mn: Hf = 8:1:1,7:2:1,7:1:2,6:1:3,6:2:2 and 6:3:1) catalysts were prepared. DFT (density functional theory) calculations

Direct seawater splitting is a promising strategy for the production of green hydrogen to address water shortage and environmental concerns. However, the primary obstacle in direct seawater splitting is directly related to the high selectivity and durability of oxygen evolution reaction (OER) electrocatalysts. In this study, we developed sulfur-doped multimetal (Ni, Fe, and Co) borophosphates (BPOs)

Humic acid (HA) is a typical refractory organic matter, widely existing in natural water and many types of wastewaters. In this study, Bi/SnO composites were synthesized by a simple one-step hydrothermal method for photocatalytic degradation of HA. Due to the surface plasmon resonance (SPR) effect of Bi, the light absorption of Bi/SnO composites expands from UV to visible light compared to pure SnO

Silver nanostructures, utilized as SERS substrates, consistently exhibit exceptional performance in detecting organic compounds through Raman spectroscopy, primarily due to the electromagnetic enhancement mechanism. This study explores an advanced SERS substrate composed of cavities formed by silver dendrites (Ag-Ds) on TiO nanotubes (TiO-NT), demonstrating exceptional performance in detecting organic

Ultra-sensitive hydrogen sulfide (HS) detection technology at low temperatures provides critical support for the application of one-time alert systems under extreme conditions, ensuring reliable monitoring of HS in low-temperature environments and enhancing safety and practicability. In this study, we developed a novel low-temperature HS sensor based on Cu/CuO nanoarrays, prepared through a combination

Hydrogen atoms play a pivotal role in achieving superlubricity in DLC films. Nevertheless, the inherent limitations in analytical testing techniques obscure the mechanisms by which hydrogen atoms achieve superlubricity in DLC films. Furthermore, direct evidence supporting the widely accepted mechanism of hydrogen passivation remains elusive. Therefore, we used ReaxFF MD simulations to investigate the

Improving CORR electrocatalysis is vital for meeting growing energy demands. Dual-atom catalysts (DACs) show promise, with activity tunable via stress-responsive substrates. Highly flexible borophene, exhibiting periodic undulations under stress, emerges as an attractive DAC substrate. Despite potential, wave-like DACs for C production remain unexplored due to modeling complexities and unknown intermediates

MXene has emerged as a promising electrochemical energy storage material due to modifiable layered structure and good electrical conductivity. However, its lamellar stacking has severely limited the electrochemical performance during charging and discharging. Herein, the Li-treated TiC and Na-treated TiC nanocomposites are prepared by hydrothermal treatment. Li-treated TiC exhibits the largest discharge

The design of a sensing material for detecting isopropanol gas with low operating temperature is extremely important for miniaturization and wearability of gas sensors. Herein, a novel gas sensor based on SnO-Carbon nanosphere heterojunctions decorated with Ag nanoparticles (SCA) was fabricated and its gas sensing performance was evaluated and compared systematically. The measurement results indicated

As third-generation semiconductors advance, gallium nitride (GaN)-based devices are gaining significant attention. However, the processing of GaN substrates directly affects device performance. This paper proposes an ICP etching-chemical–mechanical polishing (CMP) strategy to efficiently produce GaN single-crystal substrates with non-destructive, atomic-level surfaces. The process time is significantly

The wettability of polymeric carbon nitride (PCN) is an important surface chemical factor affecting its catalytic and separation performance. However, due to the amphipathic characteristics of hydrophilic/lipophilic and porous powder properties, the contact angle (CA) of PCN measured by the common sessile drop method will be interfered by the substrate, resulting in randomness of the results. Herein

Coal-fired power plants are known for emitting substantial amounts of nitrogen oxides (NO) and volatile organic compounds (VOCs) during operation. In this study, the utilization of Mn–CeO catalysts for the simultaneous removal of these pollutants was explored. The catalysts were synthesized through the co-precipitation technique, and their material structure and active sites were analyzed through XRD

Magnetoplumbite-type oxides display various properties and find applications in multiple fields. In this study, a novel magnetoplumbite-type solid solution BaZnNiTiO (0 ≤ ≤ 4) with vivid green color was synthesized through a high-temperature solid-phase method for the first time. The as-synthesized BaZnNiTiO solid solution crystallizes in the space group of P6/. The solid solution exhibits excellent

Dry reforming of methane (DRM) using CH and CO as feedstocks to catalytically produce high-value synthesis gas products has great application prospects. However, as a high-temperature heterogeneous catalytic reaction, the challenge lies in preparing efficient and stable catalysts for long-term operation. To enhance the catalytic performance by optimizing support, this study proposed regulating the

Photocatalytic nitrogen fixation is an environmentally friendly process for turning atmospheric nitrogen into ammonia under mild conditions. In this study, MOF photocatalysts Zn-bpydc and Al-bpydc with good nitrogen fixation effect were prepared by a simple one-pot method. The rates of ammonia generation for Zn-bpydc and Al-bpydc at normal temperature and pressure were 796.1 µg g h and 684.0 µg g h

Linear conjugated polymer photocatalysts remain suffer from insufficient near-infrared light absorption and poor photogenerated-carriers separation efficiency caused by twisted backbone, limiting their further application for photocatalytic water splitting to produce hydrogen energy. Herein, we first synthesized crystallized 2D poly(thiophene-co-nitrothiophene) (PN) with narrow band gap through direct

CdS is a promising visible-light-driven photocatalyst, but it is highly toxic. Therefore, exploring alternatives that minimize toxicity while maintaining its photocatalytic properties is crucial. Carbon allotropes have been suggested as eco-friendly scaffolds for making high-performance photocatalysts with a small amount of toxic but visible light-responsive CdS additive to reduce environmental risk

This study successfully developed a carbon-silicon composite material (C-Si@GS) by acid leaching (HCl) and alkali activation (NaOH) treatments from solid waste CGS and applied to the adsorption of methylene blue (MB). The effects of material dosage, pH, contact time, initial concentration and co-existing ions on the removal of MB were investigated. The results revealed C-Si@GS had good adsorption performance

Owing to the relatively high theoretical capacities, transition metal phosphides (TMPs) are attracting much attention for potassium and lithium storage. Nonetheless, the severe volume change and sluggish diffusion kinetics caused by the repeated intercalation and de-intercalation processes of Li/K, impede their further development. Herein, the ultrafine NiP nanoparticles were encapsulated inside the

Cadmium zinc telluride (CZT) crystals are widely used in room temperature nuclear radiation detectors, astrophysical detectors, and radiochemical detectors due to their excellent material properties such as high resistivity, high average atomic number, and high electron mobility lifetime product. Since CZT detectors are often required to operate in harsh radiation environments, they are susceptible

Hot corrosion of the N5 nanocrystalline coating with 0.5 wt% Y addition with and without preoxidation under 75 wt% NaSO + 25 wt% NaCl molten salts at 900 °C was investigated, in comparison with that of the NiCrAlY coating under the same condition. The results showed that the nanocrystalline coating with nano-columnar structure suffered more severe corrosion than NiCrAlY coating. The high density of

Lithium-rich manganese-based cathode (LRM) is considered to be the most promising cathode materials for next-generation lithium-ion batteries due to its high energy density. However, the low initial coulombic efficiency and poor rate performance are severe problems in the commercialization of LRM. Herein, we use an ascorbic acid (VC) modulation strategy to create spinel-carbon composite coatings and

The layered structure of MAX phases is associated with a number of functional properties and is the subject of extensive research. While the unit-cell layers of these structures have been well studied, much less is known about the distribution and manipulation of point defects within them. Here, we selected the prototype CrAlC system and, using variable energy positron beams, observed Doppler broadening

Epoxy (EP) resins are widely involved in the field of polymer coatings as a result of their excellent mechanical performance, superior chemical durability and good adhesion to the substrate. However, the undesirable tribological properties of epoxy pose a challenge for their application and development in protective coatings. Herein, an epoxy-based multifunctional nanocomposite coating (EP-PMo) was

Aeolian sandy soils are an important carbon sink for dissolved inorganic carbon (DIC), however, the underlying mechanisms are still mystery. To solve this issue, the adsorption of HCO and CO on aeolian sandy soil particles was studied using molecular dynamics simulation and adsorption experiments. Both HCO and CO can be adsorbed, albeit with varying adsorption capacity, distributions, and local environment

All-inorganic CsPbX (X=Cl, Br, I) perovskite quantum dots (QDs) have garnered extensive attention due to excellent optical properties. However, practical applications have been hampered by their instability. Dense amorphous glass protected CsPbX perovskite QDs with excellent long-term stability are ideal conditions for developing high-quality liquid crystal displays (LCD). In this paper, CsPbBrI QDs

The detection of hydrogen sulfide (HS) plays a critical role in environmental monitoring and breath analysis for medical diagnostics. For metal oxide semiconductor film-based gas sensors, the quality of the gas-sensitive material and the method of forming the gas-sensitive film on planar electrodes are critical determinants of sensor performance. In this study, a flower-like ZnO@ZnWO heterojunction

It is imperative to develop non-enzyme testing techniques that are convenient and accurate for early diagnosis of diabetes. This study designed and synthesized a novel heterogeneous transition bimetallic chalcogenide compound (10-X)NiS@XCuS using a simple one-step hydrothermal method. The self-assembly process of the core–shell structure was verified and scrutinized via transmissionelectronmicrosc

This study explores the enhancement of amorphous gallium oxide (a-GaO) thin-film phototransistors through the construction of a hetero-interface with magnesium-doped zinc oxide (Mg:ZnO). The optimized a-GaO/Mg:ZnO interface significantly improves the separation, transport, and collection of photogenerated carriers, leveraging the excellent electron transport properties of Mg:ZnO. The resulting phototransistors

In this study, CuO was modified with the boric acid (HBO) by hydrothermal method to form a new catalyst of HBO-CuO for peroxymonosulfate (PMS) activation. Multilayer superimposed nanostructures were observed on the surface of HBO-CuO, with pore size 3 times larger than that of CuO, which facilitated the provision of an increased number of active sites. The elimination rate of 20 μM ibuprofen (IBP)

Both intentional and unintentional doping of graphene is a common occurrence, as its carrier concentration can be modulated through various mechanisms. While extensively explored in electronics for achieving desirable conductivity, other aspects of doping remain largely untapped, presenting opportunities for further innovation. This study demonstrates that carrier concentration serves as a powerful

Phyllosilicate minerals are relevant in several environmental applications, such as supplementary cementitious materials, carbon capture and storage, and nuclear waste disposal. Therefore, it is important to understand how phyllosilicates react with aqueous solutions and the components within the solutions. In this study, the interaction between ethylenediamine and the surface of milled phlogopite

Magnetic-atom dimers on surface provide a powerful platform to study single spin interactions and qubit controls. They have been experimented on bare and thin-insulator-covered metallic surfaces, with strong and weak couplings between atoms and surfaces, respectively. If they are embedded in single molecules on surfaces, they may allow new geometric and electronic configurations as well as different

-phase gallium oxide (β-GaO) is attracting attention as a deep—ultraviolet photodetector (PD) owing to its large band gap of 4.9 eV, almost direct band gap characteristics, and solar-blind photodetection. However, most GaO-based transistor-type PDs operate in a normally-on mode. In this study, a silicon (Si)-doped -GaO epilayer with normally-off characteristics was grown on a nitrogen (N)-doped buffer

In this work, BaTiO films are prepared under different temperature via magnetron sputtering method, and structural, optical and electrochemical properties are investigated. The optical absorption, bandgap, and electrocatalytic oxygen evolution reaction performance of thin film samples exhibit strong temperature dependence. The sample exhibits a higher absorption value and a lower overpotential mV,

To overcome the issue of coarse grains and low synthetic content of synthesized WC due to its low nucleation drive, TiC was used as nucleating agent to promote the nucleation of WC during laser cladding. The interfacial energy and electronic structure of the heterogeneous nucleation interface were investigated by first-principles calculations. The calculated results show that TiC(111) surfaces are

Ion doping to manipulate the electronic structure of the active centre has gained significant recognition as a viable approach for enhancing catalytic activity. In this study, we proposed a strategy to enhance the adsorption of oxygen-related active substances and stabilize the active site by introducing Lewis acid sites (Al), thereby effectively improving the adsorption of PMS and inhibiting the leaching

The synthesis of the Fe and Cu-loaded N-doped biochar was accomplished by using pomelo peel as the biochar feedstock. The surface morphology and structure of the catalyst were analyzed via several characterization methods, such as SEM, TEM, BET, XRD, FTIR, Raman, XPS, and VSM. This study investigated the influence of various factors, including catalyst pyrolysis temperature, catalyst concentration

Defect formation is inevitable in the preparation and application of two-dimensional (2D) materials, profoundly impacting their properties. Surface defects can also be used as reaction sites to achieve functional doping of 2D materials. Therefore, achieving controllable formation and application of defects in 2D materials is crucial. In this study, we utilize a remote plasma-enhanced chemical vapor

Hetero-metal oxides have been used in photoelectrochemical (PEC) water splitting systems, but synthetic-originating defects and charge recombination process degrades PEC cell performance. Herein, we studied intrinsic physical properties of pure-phase copper bismuth oxide (CuBiO, CBO) photocathode through controlling defects and band edge alignment. Preparation of pure-phase CBO film with large grain

Photocatalytic oxidation technology has great potential in solving energy and environmental challenges. Here, an innovative theoretical framework based on Au/BiWO/PVDF ternary composite films that integrates piezoelectric polarization with localized surface plasmon resonance (LSPR) was proposed, aiming to effectively break through these technical bottlenecks. Photoluminescence (PL) spectra, photocurrent

The previous studies on K-doped g-CN suggest a simple correlation between the increased potassium content and the improved photocatalytic activity due to a shift of the valence band potential to more positive values, leading to the direct oxidation of hydroxyl ions to hydroxyl radicals by holes. In this study, we investigated the influence of different potassium precursors on the properties and photocatalytic

The influence of Re layer insertion either at the bottom or top interface of epitaxially grown Pt/Co/Pt heterostructures on their static and dynamic magnetic properties is discussed in terms of their crystalline structure. Magnetic properties were studied as a function of both Re and Co layer thicknesses ( and , respectively) in the matrix-like samples with a double-wedge structure, in which the layer

Iron-doped biochar catalyst (Fe-CGB) was synthesized by embedding rust into coffee grounds using a high-temperature water bath. Fe-CGB was then used with activated peroxymonosulfate (PMS) to treat chloroquine phosphate (CQP) contaminated wastewater. The presence of biochar facilitates the cycling between Fe(III) and Fe(II) species, thereby augmenting the activation efficacy of PMS. The Fe-CGB/PMS system

Chemical mechanical polishing (CMP) is currently the most widely used method for material removal and surface planarization of glass. An environmentally friendly method of improving polishing performance by using a mixed abrasive slurry of ceria and diamond was proposed in this study. The results of polishing experiments showed that compared with single ceria abrasive, the materials removal rate (MRR)

Conventional micro-arc oxidation (MAO) technology, due to the randomness and transient nature of arc discharge, produces coatings with numerous defects, poor abrasion resistance, and inadequate ability to effectively block the intrusion of corrosive media. In this paper, ultrasonic-assisted technology was used to study the effect of different ultrasonic power regulation on the performance optimization

Based on the substantial high surface area and the chemical robustness inherent to metal–organic frameworks (MOFs), their integration into piezoresistive flexible pressure sensors presents significant potential. Nonetheless, the application of such sensors is impeded by the low conductivity of MOFs. In this work, we increased the conductivity of MOFs by carbonizing 2-aminoterephthalic acid iron-nickel

In micro-cutting, microstructure induced anisotropic properties highly affect the machinability of materials because the removal amount is almost on same level as the size of microstructures such as grains and phases. In this paper, cutting force fluctuation induced by different phases is theoretically and experimentally investigated in the micro-cutting of dual-phase Ti6Al4V alloy. Particularly, a

Nowadays, the researcher has an eye on enhancing the performance of resistive random-access memory (RRAM) and exploring new demands and applications, particularly in the field of artificial intelligence and neural computing. It is crucially important for accurately replicating the observed plasticity within synapses to achieve superior RRAM performance in low-dimensional nanomaterials. In this work

Semiconductor nanostructures are known to exhibit interesting electrical and optical properties, as well as functionalities that are significantly different from their bulk counterparts. These unique characteristics can be attributed to their quantum confinement effects, and large surface-to-volume ratios, along with the fact that their compositions can be tuned. This study proposes a new method for

In this work, SiOC coatings incorporated with Ni nanoparticles were fabricated on γ-TiAl alloy by dip-coating. The microstructure and high temperature oxidation behavior of the SiOC-Ni coatings with different Ni contents were investigated. Results showed that the incorporation of Ni nanoparticles improved the oxidation resistance of the SiOC coating at 850 ℃. During thermal exposure to air, the incorporated

Fe coordination is effective to promote photocatalytic Cr(VI) reduction by graphitic carbon nitride (g-CN) from wastewater; however, the role of Fe coordination in the Cr intermediate transformation is still unknown. Herein, a Cr intermediate, Cr(V), is detected by electron paramagnetic resonance and its generation and consumption kinetics are constructed for studying the visible-light photocatalytic

The presence of acids and bases, coupled with its exceptional CO adsorption capacity and thermal stability, has established zirconia as a highly esteemed promoter and carrier. Researchers have found that the InO supported ZrO exhibits high activity and remarkable stability. Therefore, xIn-yZr(T) solid solutions were prepared with different calcination temperatures and In/Zr molar ratios. The solid