Results 261 to 270 of about 155,256 (306)

Electrocatalysts for the Oxygen Evolution Reaction in Acidic Media

Advanced Materials, 2023
AbstractThe well‐established proton exchange membrane (PEM)‐based water electrolysis, which operates under acidic conditions, possesses many advantages compared to alkaline water electrolysis, such as compact design, higher voltage efficiency, and higher gas purity.
Yichao Lin, Yan Dong, Xuezhen Wang, Liang Chen   +3 more
openaire   +2 more sources

Discharge‐Induced Enhancement of the Oxygen Evolution Reaction

Angewandte Chemie International Edition, 2021
AbstractThe fundamental understanding of the surface reconstruction induced by the applied potential is of great significance for enhancing the oxygen evolution reaction (OER). Here, we show that a previously overlooked discharge current in the low applied potential region also leads to in situ electrochemical activation of a nitrogen‐doped nickel ...
Jinhui Hao, Wei Luo, Shuaishuai Wang, Kun Zhao, Jianwen Hou, Longhua Li, Baoxin Ge, Wenshu Yang, Weidong Shi   +8 more
openaire   +2 more sources

MOF-derived electrocatalysts for oxygen reduction, oxygen evolution and hydrogen evolution reactions

Chemical Society Reviews, 2020
The morphology and composition design of MOF-derived carbon-based materials and their applications for electrocatalytic ORR, OER and HER are reviewed.
Hao-Fan Wang, Liyu Chen, Huan Pang, Stefan Kaskel, Qiang Xu   +4 more
openaire   +2 more sources

Electrocatalysts for the Oxygen Evolution Reaction

ECS Meeting Abstracts, 2012
Abstract not Available.
Nemanja Danilovic, Ramachandran Subbaraman, Dusan Strmcnik, Dusan Tripkovic, Kee-Chul Chang, Arvydas Paul Paulikas, Vojislav R. Stamenkovic, Debbie J. Myers, Nenad M. Markovic   +8 more
openaire   +1 more source

Atomic cobalt catalysts for the oxygen evolution reaction

Chemical Communications, 2020
Atomically dispersed Co/N-codoped graphene electrocatalysts require an ultra-low onset overpotential of approximately 210 mV on a glassy carbon electrode in both 1.0 M KOH and 0.1 M KOH solutions.
Qiaoqiao Zhang, Zhiyao Duan, Min Li, Jingqi Guan   +3 more
openaire   +2 more sources

Electrocatalysis and the oxygen evolution reaction

Electrochimica Acta, 1984
Abstract The oxygen evolution reaction has been investigated on a number of electrodes which are electrocatalysts for the chlorine evolution reaction, by making measurements in NaClO 4 solution. Steady state current—potential and impedance—potential measurements, obtained using automated equipment, have been used as the preferred experimental method.
Harrison, J. A., Caldwell, D. L., White, Ralph E.   +2 more
openaire   +1 more source

Recent innovations of silk-derived electrocatalysts for hydrogen evolution reaction, oxygen evolution reaction and oxygen reduction reaction

International Journal of Hydrogen Energy, 2021
Abstract Numerous researches have proved that heteroatom-doping, especially N-doping, is able to enhance the electrocatalytic performance for carbon materials toward water electrolysis and oxygen reduction reaction. Hence, the production of N-doped carbon materials from cheap and earth-abundant precursor resources such as biomass materials has great ...
Hong-zhe He, Yan Zhang, Yuanyuan Li, Ping Wang   +3 more
openaire   +1 more source

Carbon-Free Electrocatalyst for Oxygen Reduction and Oxygen Evolution Reactions

ACS Applied Materials & Interfaces, 2015
A nanoporous Ag-embedded SnO2 thin film was fabricated by anodic treatment of electrodeposited Ag-Sn alloy layers. The ordered nanoporous structure formed by anodization played a key role in enhancing the electrocatalytic performance of the Ag-embedded SnO2 layer in several ways: (1) the roughness factor of the thin film is greatly increased from 23 in
Yang, Yang, Huilong, Fei, Gedeng, Ruan, Lei, Li, Gunuk, Wang, Nam Dong, Kim, James M, Tour   +6 more
openaire   +3 more sources

CoHPi Nanoflakes for Enhanced Oxygen Evolution Reaction

ACS Applied Materials & Interfaces, 2018
Electrochemical splitting of water to produce hydrogen and oxygen is an important process for many energy storage and conversion devices. Developing efficient, robust, low-cost, and earth-abundant electrocatalysts for the oxygen evolution reaction (OER) is therefore of great importance. Herein, we report a novel method to prepare two-dimensional cobalt
Jingjing Wang, Hua Chun Zeng
openaire   +2 more sources

Measuring oxygen reduction/evolution reactions on the nanoscale

Nature Chemistry, 2011
The efficiency of fuel cells and metal-air batteries is significantly limited by the activation of oxygen reduction and evolution reactions. Despite the well-recognized role of oxygen reaction kinetics on the viability of energy technologies, the governing mechanisms remain elusive and until now have been addressable only by macroscopic studies.
Kumar, Amit, Ciucci, Francesco, Morozovska, Anna N., Kalinin, Sergei V., Jesse, Stephen   +4 more
openaire   +3 more sources