Cobalt carbonate hydroxide superstructures for oxygen evolution reactions

2017 ◽  
Vol 53 (57) ◽  
pp. 8010-8013 ◽  
Author(s):  
Simin Zhang ◽  
Bing Ni ◽  
Haoyi Li ◽  
Haifeng Lin ◽  
Huihui Zhu ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Cobalt Hydroxide ◽  
Facile Hydrothermal Method ◽  
Cobalt Carbonate ◽  
Carbonate Hydroxide ◽  
Reaction Performance

A novel 3D superstructure of cobalt hydroxide carbonate with excellent electrocatalytic oxygen evolution reaction performance has been synthesized via a facile hydrothermal method.

scholarly journals Facile Synthesis of Carbon Cloth Supported Cobalt Carbonate Hydroxide Hydrate Nanoarrays for Highly Efficient Oxygen Evolution Reaction

2021 ◽  
Vol 9 ◽  
Author(s):  
Yubing Yan
Keyword(s):  
Electron Microscopy ◽  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Carbon Cloth ◽  
High Porosity ◽  
Cobalt Carbonate ◽  
Carbonate Hydroxide ◽  
Hydroxide Hydrate

Developing efficient and low-cost replacements for noble metals as electrocatalysts for the oxygen evolution reaction (OER) remain a great challenge. Herein, we report a needle-like cobalt carbonate hydroxide hydrate (Co(CO3)0.5OH·0.11H2O) nanoarrays, which in situ grown on the surface of carbon cloth through a facile one-step hydrothermal method. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) characterizations demonstrate that the Co(CO3)0.5OH nanoarrays with high porosity is composed of numerous one-dimensional (1D) nanoneedles. Owing to unique needle-like array structure and abundant exposed active sites, the Co(CO3)0.5OH@CC only requires 317 mV of overpotential to reach a current density of 10 mA cm−2, which is much lower than those of Co(OH)2@CC (378 mV), CoCO3@CC (465 mV) and RuO2@CC (380 mV). For the stability, there is no significant attenuation of current density after continuous operation 27 h. This work paves a facile way to the design and construction of electrocatalysts for the OER.

Ag nanoparticles decorated urchin-like cobalt carbonate hydroxide composites for highly efficient oxygen evolution reaction

2020 ◽  
Vol 31 (47) ◽  
pp. 475402
Author(s):  
Wei Wang ◽  
Sainan Zhu ◽  
Xingliang Chen ◽  
Xinyu Zhang ◽  
Yourong Tao ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Ag Nanoparticles ◽  
Cobalt Carbonate ◽  
Highly Efficient ◽  
Carbonate Hydroxide

Cubic Nanostructures of Nickel–Cobalt Carbonate Hydroxide Hydrate as a High-Performance Oxygen Evolution Reaction Electrocatalyst in Alkaline and Near-Neutral Media

2020 ◽  
Vol 59 (22) ◽  
pp. 16690-16702 ◽  
Author(s):  
Kannimuthu Karthick ◽  
Sugumar Subhashini ◽  
Rishabh Kumar ◽  
Sridhar Sethuram Markandaraj ◽  
Muthukumar Muthu Teepikha ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Cobalt Carbonate ◽  
Nickel Cobalt ◽  
Carbonate Hydroxide ◽  
Neutral Media ◽  
Hydroxide Hydrate

Porous cobalt carbonate hydroxide nanospheres towards oxygen evolution reaction

2020 ◽  
pp. 128066
Author(s):  
Yi Jia ◽  
Ya-Nan Li ◽  
Zheng-Min Wang ◽  
Fu-Min Li ◽  
Pu-Jun Jin ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Cobalt Carbonate ◽  
Carbonate Hydroxide

Synthesis of hydrous cobalt phosphate electro-catalysts by a facile hydrothermal method for enhanced oxygen evolution reaction: effect of urea variation

CrystEngComm ◽  
2019 ◽  
Vol 21 (5) ◽  
pp. 884-893 ◽  
Author(s):  
Pranav K. Katkar ◽  
Supriya J. Marje ◽  
Shital B. Kale ◽  
Abhishek C. Lokhande ◽  
Chandrakant D. Lokhande ◽  
...  
Keyword(s):  
Thin Film ◽  
Hydrothermal Method ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Facile Hydrothermal Method ◽  
One Pot ◽  
Highly Active ◽  
Cobalt Phosphate

Highly active hydrous cobalt phosphate thin film electro-catalysts were synthesized by one-pot hydrothermal method and were evaluated for the oxygen evolution reaction (OER).

Synthesis from a layered double hydroxide precursor for a highly efficient oxygen evolution reaction

2019 ◽  
Vol 6 (7) ◽  
pp. 1793-1798 ◽  
Author(s):  
Jian Wan ◽  
Wen Ye ◽  
Rui Gao ◽  
Xiaoyu Fang ◽  
Zhenguo Guo ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Oxygen Evolution Reaction ◽  
Facile Hydrothermal Method ◽  
Highly Efficient ◽  
Double Hydroxide

A hybrid of Co3Se4 and FeSe2 prepared via a facile hydrothermal method achieves an efficient OER activity during water splitting.

Fe-Induced electronic optimization of mesoporous Co–Ni oxide nanosheets as an efficient binder-free electrode for the oxygen evolution reaction

2021 ◽  
Vol 45 (14) ◽  
pp. 6424-6431
Author(s):  
Jingjing Ju ◽  
Jiajia Lu ◽  
Xiaoyue Shi ◽  
Hongwei Zhu ◽  
Han-Pu Liang
Keyword(s):  
Hydrothermal Method ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Mesoporous Structure ◽  
Post Annealing ◽  
Binder Free ◽  
Ni Oxide

An efficient binder-free OER electrode CoNiFeOx/NF with mesoporous structure was synthesized by a facile strategy of hydrothermal method and post-annealing.

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