Enhanced Oxygen Evolution Reaction Electrocatalysis via Electrodeposited Amorphous α-Phase Nickel-Cobalt Hydroxide Nanodendrite Forests

2017 ◽  
Vol 9 (34) ◽  
pp. 28355-28365 ◽  
Author(s):  
Anirudh Balram ◽  
Hanfei Zhang ◽  
Sunand Santhanagopalan
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Cobalt Hydroxide ◽  
Nickel Cobalt ◽  
Α Phase

scholarly journals Active-Site-Enriched Iron-Doped Nickel/Cobalt Hydroxide Nanosheets for Enhanced Oxygen Evolution Reaction

ACS Catalysis ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 5382-5390 ◽  
Author(s):  
Qian Zhou ◽  
Yaping Chen ◽  
Guoqiang Zhao ◽  
Yue Lin ◽  
Zhenwei Yu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Active Site ◽  
Oxygen Evolution Reaction ◽  
Cobalt Hydroxide ◽  
Nickel Cobalt ◽  
Iron Doped

Nano‐Micro‐Structured Nickel‐Cobalt Hydroxide/Ni 2 P 2 O 7 Assembly on Nickel Foam: An Outstanding Electrocatalyst for Alkaline Oxygen Evolution Reaction

ChemCatChem ◽  
2019 ◽  
Vol 11 (17) ◽  
pp. 4256-4261 ◽  
Author(s):  
Nilesh R. Chodankar ◽  
Indrajit V. Bagal ◽  
Sang‐Wan Ryu ◽  
Young‐Kyu Han ◽  
Do‐Heyoung Kim
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Nickel Foam ◽  
Cobalt Hydroxide ◽  
Nickel Cobalt

scholarly journals Nickel-cobalt oxalate as efficient non-precious electrocatalyst for improved alkaline oxygen evolution reaction

2021 ◽  
Author(s):  
Venkataramanan Mahalingam ◽  
Sourav Ghosh ◽  
Rajkumar Jana ◽  
Sagar Ganguli ◽  
Harish Reddy Inta ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Next Generation ◽  
Synthetic Strategy ◽  
Nickel Cobalt ◽  
Cobalt Oxalate

The quest for developing next-generation non-precious electrocatalyst is getting aroused in recent times. Herein, we have designed and developed a low cost electrocatalyst by ligand-assisted synthetic strategy in aqueous medium....

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.

Highly efficient and robust sulfur-doped nickel-cobalt oxide towards oxygen evolution reaction

2020 ◽  
Vol 496 ◽  
pp. 111175
Author(s):  
Cong Li ◽  
Chi Ho Wong ◽  
Frank Leung-Yuk Lam ◽  
Xijun Hu
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Highly Efficient ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide

Template confined strategy for constructing nickel cobalt selenide nanoarrays for efficient oxygen evolution reaction

2020 ◽  
Vol 17 ◽  
pp. 100468
Author(s):  
X.-Y. Zhang ◽  
B.-Y. Guo ◽  
X.-Y. Chen ◽  
L. Zhao ◽  
B. Dong ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Nickel Cobalt ◽  
Cobalt Selenide
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