Bimetallic cyclic redox couple in dimanganese copper oxide supported by nickel borate for boosted alkaline electrocatalytic oxygen evolution reaction

2021 ◽  
Author(s):  
Sourav Bhowmick ◽  
Suhaib Alam ◽  
Adit Kumar Shah ◽  
Mohammad Qureshi
Keyword(s):  
Copper Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Stability ◽  
Redox Couple ◽  
Redox Mechanism

Self-redox mechanism in Mn2CuO4 is a crucial phenomenon for its high stability and activity towards oxygen evolution reaction.

Engineering Nanowire Array Structure of Copper Oxide/Cuprous Oxide for Enhanced Oxygen Evolution Reaction

2020 ◽  
Vol 167 (2) ◽  
pp. 022508
Author(s):  
Wenjing Yuan ◽  
Yaoyao Wu ◽  
Chihhsiang Fang ◽  
Xiaodan Wang ◽  
Xiaomin Huang ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Oxygen Evolution ◽  
Cuprous Oxide ◽  
Oxygen Evolution Reaction ◽  
Nanowire Array ◽  
Array Structure

scholarly journals Bismuth Substituted Strontium Cobalt Perovskites for Catalyzing Oxygen Evolution

2019 ◽  
Author(s):  
Denis Kuznetsov ◽  
Jiayu Peng ◽  
Livia Giordano ◽  
Yuriy Román-Leshkov ◽  
Yang Shao-Horn
Keyword(s):  
Fermi Level ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Rational Design ◽  
High Stability ◽  
Inductive Effect ◽  
Specific Activity ◽  
Band Center ◽  
Highly Active ◽  
A Site

In this study, we employ the strategy of substitution with more electronegative/acidic A-site ions in the cobalt perovskites to alter O 2p-band center, surface hydroxide affinity, and oxygen evolution reaction (OER) activity and stability in the basic electrolyte. Galvanostatically charged Bi<sub>0.2</sub>Sr<sub>0.8</sub>CoO<sub>3-δ</sub> (δ close to zero) was shown to exhibit record OER specific activity exceeding not only La<sub>x</sub>Sr<sub>1-x</sub>CoO<sub>3-δ</sub> but also charged SrCoO<sub>3-δ</sub> (δ close to zero), one of the most active oxide OER catalysts reported so far. The enhanced OER activity of charged Bi<sub>0.2</sub>Sr<sub>0.8</sub>CoO<sub>3-δ</sub> can be attributed to greater hydroxide affinity facilitating the deprotonation of surface bound intermediates due to the presence of strong Lewis acidic A-site Bi<sup>3+</sup> ions, while the high stability can result from lowered O 2p-band center relative to the Fermi level. This work provides a novel example in the rational design of highly active oxide catalysts for OER by leveraging the inductive effect.

scholarly journals A Dendritic Nanostructured Copper Oxide Electrocatalyst for the Oxygen Evolution Reaction

2017 ◽  
Vol 129 (17) ◽  
pp. 4870-4874 ◽  
Author(s):  
Tran Ngoc Huan ◽  
Gwenaëlle Rousse ◽  
Sandrine Zanna ◽  
Ivan T. Lucas ◽  
Xiangzhen Xu ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Nanostructured Copper

scholarly journals Self-assembled two-dimensional copper oxide nanosheet bundles as an efficient oxygen evolution reaction (OER) electrocatalyst for water splitting applications

2017 ◽  
Vol 5 (25) ◽  
pp. 12747-12751 ◽  
Author(s):  
Sambhaji M. Pawar ◽  
Bharati S. Pawar ◽  
Bo Hou ◽  
Jongmin Kim ◽  
Abu Talha Aqueel Ahmed ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Copper Oxide ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Chemical Bath Deposition ◽  
Oxygen Evolution Reaction ◽  
Two Dimensional ◽  
Self Assembled

Self-assembled CuO nanosheet bundles are fabricated on stainless steelviachemical bath deposition and optimized for efficient electrocatalysis.

Copper Selenide–Derived Copper Oxide Nanoplates as a Durable and Efficient Electrocatalyst for Oxygen Evolution Reaction

2020 ◽  
Vol 8 (7) ◽  
pp. 2000142
Author(s):  
Xiaoxiao Wang ◽  
Xiyan Hou ◽  
Husileng Lee ◽  
Liangjie Lu ◽  
Xiujuan Wu ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Copper Selenide

In situ generated highly active copper oxide catalysts for the oxygen evolution reaction at low overpotential in alkaline solutions

2016 ◽  
Vol 52 (32) ◽  
pp. 5546-5549 ◽  
Author(s):  
Xiang Liu ◽  
Shengsheng Cui ◽  
Manman Qian ◽  
Zijun Sun ◽  
Pingwu Du
Keyword(s):  
Copper Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Oxide Catalyst ◽  
Oxide Catalysts ◽  
Alkaline Solutions ◽  
Catalyst Film ◽  
Highly Active

A highly active copper oxide catalyst film is generated in situ from copper(ii) diamine complex for oxygen evolution reaction with high performance and excellent durability in alkaline solutions.

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