Enhanced Catalysis of the Electrochemical Oxygen Evolution Reaction by Iron(III) Ions Adsorbed on Amorphous Cobalt Oxide

ACS Catalysis ◽  
2017 ◽  
Vol 8 (2) ◽  
pp. 807-814 ◽  
Author(s):  
Luo Gong ◽  
Xin Yu Esther Chng ◽  
Yonghua Du ◽  
Shibo Xi ◽  
Boon Siang Yeo
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrochemical Oxygen

scholarly journals Selective acid leaching: a simple way to engineer cobalt oxide nanostructures for the electrochemical oxygen evolution reaction

2019 ◽  
Vol 7 (40) ◽  
pp. 23130-23139 ◽  
Author(s):  
Mingquan Yu ◽  
Kendra Solveig Belthle ◽  
Cengiz Tüysüz ◽  
Harun Tüysüz
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Acid Leaching ◽  
Oxide Nanostructures ◽  
Electrochemical Oxygen

A facile and scalable strategy via diluted-HCl leaching was developed to prepare sub-5 nm Co3O4 nanocrystals for electrochemical water oxidation.

scholarly journals Laser Fragmentation‐Induced Defect‐Rich Cobalt Oxide Nanoparticles for Electrochemical Oxygen Evolution Reaction

ChemSusChem ◽  
2019 ◽  
Vol 13 (3) ◽  
pp. 520-528 ◽  
Author(s):  
Mingquan Yu ◽  
Friedrich Waag ◽  
Candace K. Chan ◽  
Claudia Weidenthaler ◽  
Stephan Barcikowski ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Oxide Nanoparticles ◽  
Cobalt Oxide Nanoparticles ◽  
Electrochemical Oxygen

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 Effects of Annealing Temperature on the Oxygen Evolution Reaction Activity of Copper–Cobalt Oxide Nanosheets

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 657
Author(s):  
Geul Han Kim ◽  
Yoo Sei Park ◽  
Juchan Yang ◽  
Myeong Je Jang ◽  
Jaehoon Jeong ◽  
...  
Keyword(s):  
High Activity ◽  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
High Surface ◽  
High Surface Area ◽  
Cobalt Hydroxide ◽  
Ni Foam ◽  
Electron Conduction

Developing high performance, highly stable, and low-cost electrodes for the oxygen evolution reaction (OER) is challenging in water electrolysis technology. However, Ir- and Ru-based OER catalysts with high OER efficiency are difficult to commercialize as precious metal-based catalysts. Therefore, the study of OER catalysts, which are replaced by non-precious metals and have high activity and stability, are necessary. In this study, a copper–cobalt oxide nanosheet (CCO) electrode was synthesized by the electrodeposition of copper–cobalt hydroxide (CCOH) on Ni foam followed by annealing. The CCOH was annealed at various temperatures, and the structure changed to that of CCO at temperatures above 250 °C. In addition, it was observed that the nanosheets agglomerated when annealed at 300 °C. The CCO electrode annealed at 250 °C had a high surface area and efficient electron conduction pathways as a result of the direct growth on the Ni foam. Thus, the prepared CCO electrode exhibited enhanced OER activity (1.6 V at 261 mA/cm2) compared to those of CCOH (1.6 V at 144 mA/cm2), Co3O4 (1.6 V at 39 mA/cm2), and commercial IrO2 (1.6 V at 14 mA/cm2) electrodes. The optimized catalyst also showed high activity and stability under high pH conditions, demonstrating its potential as a low cost, highly efficient OER electrode material.

In-situ coating amorphous boride on ternary pyrite-type boron sulfide for highly efficient oxygen evolution

2021 ◽  
Author(s):  
Tingting Li ◽  
Tianyun Jing ◽  
Dewei Rao ◽  
Xiaotian Jia ◽  
Yunpeng Zuo ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Highly Efficient ◽  
In Situ Coating ◽  
Electrochemical Oxygen

Multimetallic pyrite-type sulfides have been a promising electrocatalytic materials for electrochemical oxygen evolution reaction (OER), but still requires further improve due to the easily oxidization of surface atoms and the...

Enhanced Electrochemical Oxygen Evolution Reaction on Hydrogen Embrittled CoSe Surface

2021 ◽  
pp. 2101209
Author(s):  
Pitchiah Esakki Karthik ◽  
Hashikaa Rajan ◽  
Vasanth Rajendiran Jothi ◽  
Min Jae Ko ◽  
Sung Chul Yi
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrochemical Oxygen

scholarly journals The Influence of Fe Substitution in Lanthanum Calcium Cobalt Oxide on the Oxygen Evolution Reaction in Alkaline Media

2016 ◽  
Vol 163 (9) ◽  
pp. F1124-F1132 ◽  
Author(s):  
Maria A. Abreu-Sepulveda ◽  
Chetan Dhital ◽  
Ashfia Huq ◽  
Ling Li ◽  
Craig A. Bridges ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Alkaline Media ◽  
Calcium Cobalt Oxide ◽  
Fe Substitution
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