Results 111 to 120 of about 27,278 (305)

Cobalt oxyphosphide as oxygen reduction electrocatalyst in proton exchange membrane fue cell

, 2011
Cobalt oxyphosphide as oxygen reduction electrocatalyst in proton exchange membrane fue ...
马援蔚, 王美日, 钟和香, 张华民   +3 more
core  

Alternative Electrocatalyst Support Materials for Polymer Electrolyte Fuel Cells

, 2010
Durability of electrocatalysts under severe operational conditions of polymer electrolyte fuel cells (PEFCs) is one of the most important technological issues to be improved. Alternative electrocatalyst support materials are desired, the use of which may
Zhiyun Noda, Shingo Hayashi, Yusuke Shiratori, Fumiaki Takasaki, Kazunari Sasaki, Kohei Ito   +5 more
core   +1 more source

Integrating Machine Learning With Constant‐Potential Simulation to Unravel Charge‐Transfer Mechanisms in Electrochemical Nitrogen Fixation

Advanced Science, EarlyView.
Integrating interpretable machine learning with the fixed‐potential method reveals a novel mechanism: the catalytic activity of the electrochemical nitrogen reduction reaction is governed by partial charge transfer, induced by variations in the intermediate potential of zero charge under constant potential.
Yufei Xue, Dushuo Feng, Yuefei Zhang, Yang Zhang, Yalong Jiao, Aijun Du, Guoping Gao   +6 more
wiley   +1 more source

A facile synthesis of Pd C cathode electrocatalyst for proton exchange membrane fuel cells

, 2011
A facile synthesis of Pd/C cathode electrocatalyst for proton exchange membrane fuel ...
马援蔚, 钟和香, 唐永福, 张华民   +3 more
core  

Operando Electrochemical Formation of Integrated Ni‐Fe Oxyhydroxide Anode for Durable Anion Exchange Membrane Water Electrolyzer

Advanced Science, EarlyView.
The interfacial stability and activity of Ni‐Fe‐based AEMWE anodes can be directly enhanced by operando voltage‐cycling in a FeOOH‐containing electrolyte. This process simultaneously induces Ni oxidation and Fe incorporation, forming an integrated, porous (Fe, Ni)OOH layer with high conductivity and durability.
Euntaek Oh, Jonghyun Hyun, Hojin Lee, Changsoo Lee, Jang Yong Lee, Dong Wook Lee, Kyunghwa Seok, Jeesoo Park, Susung Kim, Gisu Doo, Hee‐Tak Kim   +10 more
wiley   +1 more source

Hydrothermally synthesis Cd(OH)2: a high efficiency catalyst for OER in green hydrogen production

Discover Applied Sciences
The development of an OER electrocatalyst that combines remarkable durability with high activity is a major concern in today’s energy transition. This study utilizes a hydrothermal technique to synthesize Cd(OH)2 directly on a nickel foam (NF) substrate ...
Neelam Nagda, Naveen Suthar, Pushpendra Kumar, K. K. Nagaraja, Ajay Saini   +4 more
doaj   +1 more source

Tailored Catalytic Microenvironments Enable Efficient Electrochemical Ammonia Production

Advanced Science, EarlyView.
This study shows that Co2+ substitution in inverse spinel FeFeCoO4 constructs an integrated catalytic microenvironment for efficient nitrate‐to‐ammonia reduction. Jahn–Teller distortion activates Fe sites for *H generation, while hard–soft acid–base regulated dual‐metal sites optimize proton‐coupled electron transfer and intermediate adsorption ...
Qi Zhang, Peimiao Zou, Huimin Zhang, Alex J. Brown, Yingjie Song, Marc Walker, Yisong Han, Kui Xie, Shanwen Tao   +8 more
wiley   +1 more source

Tackling activity-stability paradox of reconstructed NiIrOx electrocatalysts by bridged W-O moiety

Nature Communications
One challenge remaining in the development of Ir-based electrocatalyst is the activity-stability paradox during acidic oxygen evolution reaction (OER), especially for the surface reconstructed IrOx catalyst with high efficiency.
Muhammad Imran Abdullah, Yusheng Fang, Xiaobing Wu, Meiqi Hu, Jing Shao, Youkun Tao, Haijiang Wang   +6 more
doaj   +1 more source

Hydrophobicity Modulated Interfacial Water Distribution for Enhanced Kinetics of HER

Advanced Science, EarlyView.
In electrocatalysis, hydrophilic structures improve interfacial water management by forming a continuous, compact water film that facilitates proton/hydrogen transport, thereby lowering the effective adsorption free energy of H*. By contrast, hydrophobic structures enable rapid gas transport and promote the capture and local enrichment of gaseous ...
Yucheng Dong, Xinfa Wei, Xiangdong Xue, Hanxiao Wang, Qing Dong, Jian Liu   +5 more
wiley   +1 more source

Heteroatom doped graphdiyne as efficient metal-free electrocatalyst for oxygen reduction reaction in alkaline medium

, 2016
The commercialization of fuel cells and metal-air batteries can only be realized if expensive and scarce platinum-based catalysts are replaced by lower cost, efficient, and durable catalysts for the oxygen reduction reaction (ORR).
Liu, Jingjing, Li, Yuliang, Liu, Rongji, Liu, Huibiao, Li, Bin, Zhang, Shuangshuang, He, Hongyan, Zhang, Guangjin, Wang, Meng, Zhang, Yaqin, Cao, Hongbin, Cai, Yingjun   +11 more
core   +1 more source