Engineering a Triphasic Co(OH)F/Co–S/CeO2 Nanostructure Interface for Promoting Hydrazine-Assisted Overall Water Splitting DOI
Dianyi Qu,

Shuai Zeng,

Zheng Yang

и другие.

ACS Applied Nano Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 5, 2024

Synthesizing bifunctional electrocatalysts capable of concurrently accelerating the kinetics both hydrogen evolution reaction (HER) and hydrazine oxidation (HzOR) remains a formidable hurdle with academic research. Herein, nanoneedle-like electrocatalyst triphasic nanointerface, consisting crystalline Co(OH)F, amorphous Co–S, CeO2, was synthesized on nickel foam (NF) (Co(OH)F/Co–S/CeO2/NF) through an integrated hydrothermal–sulfidation–deposition strategy. Co(OH)F/Co–S/CeO2/NF not only possessed abundant active sites but also minimized charge-transfer resistance optimized electron distribution across interfaces, thus significantly kinetics. Then, it demonstrated overpotential 153 mV for HER low potential 80 HzOR at 10 mA cm–2, respectively. Employing as catalytic electrode, impressively cell voltage 0.20 V sufficient to achieve flow cm–2 during hydrazine-assisted overall water splitting. Density functional theory calculations elucidated that superior performance originated from balanced adsorption energy (ΔGH*) process altered rate-limiting step relatively barrier in HzOR. This research offers valuable insights into development sophisticated electrocatalysts, advancing large-scale deployment energy-conserving H2 production technologies.

Язык: Английский

Atomically precise Cu6 nanoclusters for oxygen evolution catalysis: a combined experimental and theoretical study DOI
Mengyao Chen, Longyun Shen, Lubing Qin

и другие.

Rare Metals, Год журнала: 2025, Номер unknown

Опубликована: Янв. 16, 2025

Язык: Английский

Процитировано

0
Improving the efficiency of seawater desalination and hydrogen production: Challenges, strategies, and the future of seawater electrolysis DOI
Yuliang Li,

Qiuya Zhang,

Yan Li

и другие.

Desalination, Год журнала: 2025, Номер unknown, С. 118882 - 118882

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Orchestrated electron transfer in reduced polyoxometalate-based coordination architectures for facilitating nitrate-to-ammonia electrosynthesis DOI
Xinming Wang,

Qiushuang Jiang,

Shuang Rong

и другие.

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 694, С. 137717 - 137717

Опубликована: Апрель 28, 2025

Язык: Английский

Процитировано

0
High-Entropy Regulation of Lattice Oxygen p-Band toward Sustainable Electrocatalytic Biomass Valorization DOI

Guixiang Ding,

Juntao Zhang,

Yan Di

и другие.

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Май 23, 2025

Electrocatalytic 5-hydroxymethylfurfural oxidation reaction (HMFOR) presents a promising approach for converting biomass derivatives into high-value chemicals but is challenging due to poor stability and low Faradaic efficiency. Herein, we present high-entropy NiCoFeMnAl layer double hydroxide (NiCoFeMnAl-LDH) HMFOR via hydrothermal method. At potential of 1.43 V vs RHE, the process demonstrates exceptional performance with 100% HMF conversion, 99.09% selectivity 2,5-furandicarboxylic acid (FDCA), efficiency 96.9%, which outperform majority previously reported state-of-the-art electrocatalysts. The impressive primarily attributed surface chemical environment that regulates p-band center lattice oxygen, thereby reducing Gibbs free energy rate-determining step accelerating kinetics charge transfer. Moreover, NiCoFeMnAl-LDH significantly mitigates common issue carbon deposition observed in traditional LDH-based materials, enhancing HMFOR. tuning oxygen provides valuable insights design high-performance

Язык: Английский

Процитировано

0
Electronic Optimization in V-Doped NiS Nanoarrays Enables High-Efficiency Sulfide Oxidation-Assisted Seawater Electrolysis DOI
Jiaqiang Sun, Zihao Wei, Zi‐Hui Zhang

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 24, 2025

The combination of hydrogen production and sulfide degradation represents a promising approach for energy-saving seawater splitting while generating valuable sulfur. Herein, we show that V-doping can regulate the electronic structure NiS, thus optimizing reactants/intermediates' adsorption behaviors reducing corresponding energy barriers. Accordingly, oxidation reaction (SOR), as-prepared catalyst needs working potential 0.62 V vs RHE to reach 100 mA cm-2 accompanied by high robustness over 70 h. Besides, it also trigger evolution (HER) activity with low overpotential 0.196 at 10 cm-2. By coupling SOR HER in alkaline seawater, electrolyzer yield 1.89 V, which is lower than conventional splitting, significantly input. formation sulfur powder anode further confirms economic feasibility such novel electrolysis system. This work shows an attractive attempt construct outstanding NiS-based catalysts simultaneous green production.

Язык: Английский

Процитировано

0
Mastering vacancy engineering for electrocatalysis: Insights into classification, synthesis, and characterization DOI Creative Commons
Gong Chen, Chi He, Guangyuan Yan

и другие.

Nano Materials Science, Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Rapid Reconstruction on the Amorphous Surface for Boosting 5-Hydroxymethylfurfural-Assisted Hydrogen Production DOI
Yixue Fu, Yingying Liu,

Ga Jin

и другие.

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Июнь 3, 2025

Язык: Английский

Процитировано

0
Synergistic Contribution of the Strain and Magnetic Field in Ferromagnetic NiMnIn Heusler Alloy Films for the Hydrogen Evolution Reaction DOI
Xiao Yu, Yechao Ling, Shijun Yuan

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(51), С. 70460 - 70468

Опубликована: Дек. 13, 2024

The external field-assisted hydrogen evolution reaction (HER), beyond modifying electrocatalysts themselves, has garnered significant research attention. However, achieving synergy between multiple fields to enhance the HER performance remains challenging and is not well-explored. Here, NiMnIn Heusler alloy thin films are fabricated using pulsed laser deposition on flexional Cu substrates. Due different adsorption free energy under tensile strain (TS) compressive (CS), most enhancement of electrocatalytic activities for film observed in 1.9% TS state, while CS state shows negative effects. Furthermore, when an magnetic field coupled tensile-strained film, total overpotential reduced by 28.6% at a current density −50 mA cm–2. This improvement attributed synergistic effect that enhances H stability accelerates H2 desorption process. work demonstrates effectiveness combining presents promising strategy advancing electrocatalysis.

Язык: Английский

Процитировано

1
Engineering a Triphasic Co(OH)F/Co–S/CeO2 Nanostructure Interface for Promoting Hydrazine-Assisted Overall Water Splitting DOI
Dianyi Qu,

Shuai Zeng,

Zheng Yang

и другие.

ACS Applied Nano Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 5, 2024

Synthesizing bifunctional electrocatalysts capable of concurrently accelerating the kinetics both hydrogen evolution reaction (HER) and hydrazine oxidation (HzOR) remains a formidable hurdle with academic research. Herein, nanoneedle-like electrocatalyst triphasic nanointerface, consisting crystalline Co(OH)F, amorphous Co–S, CeO2, was synthesized on nickel foam (NF) (Co(OH)F/Co–S/CeO2/NF) through an integrated hydrothermal–sulfidation–deposition strategy. Co(OH)F/Co–S/CeO2/NF not only possessed abundant active sites but also minimized charge-transfer resistance optimized electron distribution across interfaces, thus significantly kinetics. Then, it demonstrated overpotential 153 mV for HER low potential 80 HzOR at 10 mA cm–2, respectively. Employing as catalytic electrode, impressively cell voltage 0.20 V sufficient to achieve flow cm–2 during hydrazine-assisted overall water splitting. Density functional theory calculations elucidated that superior performance originated from balanced adsorption energy (ΔGH*) process altered rate-limiting step relatively barrier in HzOR. This research offers valuable insights into development sophisticated electrocatalysts, advancing large-scale deployment energy-conserving H2 production technologies.

Язык: Английский

Процитировано

0