Vanadium–cobalt oxyhydroxide shows ultralow overpotential for the oxygen evolution reaction

2019 ◽  
Vol 7 (38) ◽  
pp. 21911-21917 ◽  
Author(s):  
Yan Cui ◽  
Yuan Xue ◽  
Rui Zhang ◽  
Jian Zhang ◽  
Xing'ao Li ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Cobalt Oxyhydroxide ◽  
Best Value

In the cation modulated V–Co based oxyhydroxide electrocatalyst, 190 mV overpotential at 10 mA cm−2 is the best value reported for Co or V (oxy)hydroxides based OER catalysts.

Activity of pure and transition metal-modified CoOOH for the oxygen evolution reaction in an alkaline medium

2017 ◽  
Vol 5 (2) ◽  
pp. 842-850 ◽  
Author(s):  
Zhu Chen ◽  
Coleman X. Kronawitter ◽  
Yao-Wen Yeh ◽  
Xiaofang Yang ◽  
Peng Zhao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Oxygen Evolution ◽  
Alkaline Medium ◽  
Oxygen Evolution Reaction ◽  
Surface Species ◽  
Catalytic Activities ◽  
Cobalt Oxyhydroxide ◽  
Nickel Incorporation

Cobalt oxyhydroxide nanowires show excellent oxygen evolution activity, which is further enhanced by nickel incorporation. Effects of nickel and manganese incorporation on the catalytic activities are explained in term of surface species stabilities.

Enhanced oxygen evolution reaction on 2D CoOOH via strain engineering: an insightful view from spin state transition

2021 ◽  
Author(s):  
Feifei Li ◽  
Haoqiang Ai ◽  
Dong Liu ◽  
Kin Ho Lo ◽  
Hui Pan
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Spin State ◽  
Oxygen Evolution Reaction ◽  
State Transition ◽  
Catalytic Performance ◽  
Strain Engineering ◽  
Cobalt Oxyhydroxide ◽  
Spin State Transition ◽  
Electrochemical Water Splitting

Cobalt oxyhydroxide (CoOOH) has attracted great attention in electrochemical water splitting. However, the mechanism behind its catalytic performance and how to improve its activity are still under debate. In the...

scholarly journals Iron-induced 3D nanoporous iron-cobalt oxyhydroxide on carbon cloth as a highly efficient electrode for oxygen evolution reaction

2019 ◽  
Vol 40 (10) ◽  
pp. 1540-1547 ◽  
Author(s):  
Guodong Chen ◽  
Jian Du ◽  
Xilong Wang ◽  
Xiaoyue Shi ◽  
Zonghua Wang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Carbon Cloth ◽  
Iron Cobalt ◽  
Highly Efficient ◽  
Cobalt Oxyhydroxide

Holey cobalt oxyhydroxide nanosheets for the oxygen evolution reaction

2021 ◽  
Vol 9 (6) ◽  
pp. 3297-3302
Author(s):  
Qing-Ling Hong ◽  
Quan-Guo Zhai ◽  
Xiao-Li Liang ◽  
Yun Yang ◽  
Fu-Min Li ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Cobalt Oxyhydroxide

Holey CoOOH nanosheets (CoOOH HNSs) are easily synthesized by a successive coordination–oxidation–hydrolysis strategy.

scholarly journals Direct Evidence of Cobalt Oxyhydroxide Formation on a La0.2Sr0.8CoO3 Perovskite Water Splitting Catalyst

2021 ◽  
Author(s):  
Anthony Boucly ◽  
Luca Artiglia ◽  
Emiliana Fabbri ◽  
Dennis Palagin ◽  
Dino Aegerter ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Direct Evidence ◽  
Huge Amount ◽  
Perovskite Materials ◽  
Cobalt Oxyhydroxide

Understanding the mechanism of oxygen evolution reaction (OER) on perovskite materials is of great interest for the development of more active catalysts. Despite the huge amount of literature reports, the...

An Fe-doped NiTe bulk crystal as a robust catalyst for the electrochemical oxygen evolution reaction

2019 ◽  
Vol 55 (63) ◽  
pp. 9347-9350 ◽  
Author(s):  
Lei Zhong ◽  
Yufei Bao ◽  
Xu Yu ◽  
Ligang Feng
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Bulk Crystal ◽  
Stable Performance ◽  
Electrochemical Oxygen

An Fe doped NiTe bulk crystal was demonstrated to exhibit an extremely active and stable performance for the electrochemical oxygen evolution reaction.

scholarly journals Robust Carbon-Stabilization of Few-Layer Black Phosphorus for Superior Oxygen Evolution Reaction

Coatings ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 695 ◽  
Author(s):  
Mengjie Zhang ◽  
Wenchang Zhu ◽  
Xingzhe Yang ◽  
Meng Feng ◽  
Hongbin Feng
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Black Phosphorus ◽  
Carbon Stabilization ◽  
High Durability ◽  
Carbon Coated ◽  
Alkaline Conditions ◽  
Doped Graphene ◽  
A Current

Few-layer exfoliated black phosphorus (Ex-BP) has attracted tremendous attention owing to its promising applications, including in electrocatalysis. However, it remains a challenge to directly use few-layer Ex-BP as oxygen-involved electrocatalyst because it is quite difficult to restrain structural degradation caused by spontaneous oxidation and keep it stable. Here, a robust carbon-stabilization strategy has been implemented to prepare carbon-coated Ex-BP/N-doped graphene nanosheet (Ex-BP/NGS@C) nanostructures at room temperature, which exhibit superior oxygen evolution reaction (OER) activity under alkaline conditions. Specifically, the as-synthesized Ex-BP/NGS@C hybrid presents a low overpotential of 257 mV at a current density of 10 mA cm−2 with a small Tafel slope of 52 mV dec−1 and shows high durability after long-term testing.

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