CoO-modified Co4N as a heterostructured electrocatalyst for highly efficient overall water splitting in neutral media

2018 ◽  
Vol 6 (48) ◽  
pp. 24767-24772 ◽  
Author(s):  
Rui-Qing Li ◽  
Pengfei Hu ◽  
Meng Miao ◽  
Yongle Li ◽  
Xiang-Fen Jiang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Low Voltage ◽  
Bifunctional Catalysis ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Neutral Media

A CoO-domain-coated porous Co4N array was integrated for bifunctional catalysis of overall water splitting with a low voltage of 1.79 V in neutral media.

Self-supported nickel–cobalt nanowires as highly efficient and stable electrocatalysts for overall water splitting

Nanoscale ◽  
2018 ◽  
Vol 10 (39) ◽  
pp. 18767-18773 ◽  
Author(s):  
Hui Xu ◽  
Jingjing Wei ◽  
Min Zhang ◽  
Jin Wang ◽  
Yukihide Shiraishi ◽  
...  
Keyword(s):  
Water Splitting ◽  
Low Voltage ◽  
Water Electrolysis ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Highly Active ◽  
Cobalt Nanowires ◽  
Nickel Cobalt

The Ni1Co1O2 NWs//Ni1Co1P NWs couple is highly active and stable for overall water electrolysis with a low voltage of 1.58 V at 10 mA cm−2, showing extraordinary promise for practical overall water splitting electrolysis.

scholarly journals Graphene/MoS2/FeCoNi(OH)x and Graphene/MoS2/FeCoNiPx multilayer-stacked vertical nanosheets on carbon fibers for highly efficient overall water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xixi Ji ◽  
Yanhong Lin ◽  
Jie Zeng ◽  
Zhonghua Ren ◽  
Zijia Lin ◽  
...  
Keyword(s):  
Water Splitting ◽  
Carbon Fibers ◽  
Graphene Nanosheets ◽  
Water Electrolysis ◽  
Hybrid Structure ◽  
Hydrogen Energy ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Stable Oxygen ◽  
Excellent Stability

AbstractDevelopment of excellent and cheap electrocatalysts for water electrolysis is of great significance for application of hydrogen energy. Here, we show a highly efficient and stable oxygen evolution reaction (OER) catalyst with multilayer-stacked hybrid structure, in which vertical graphene nanosheets (VGSs), MoS2 nanosheets, and layered FeCoNi hydroxides (FeCoNi(OH)x) are successively grown on carbon fibers (CF/VGSs/MoS2/FeCoNi(OH)x). The catalyst exhibits excellent OER performance with a low overpotential of 225 and 241 mV to attain 500 and 1000 mA cm−2 and small Tafel slope of 29.2 mV dec−1. Theoretical calculation indicates that compositing of FeCoNi(OH)x with MoS2 could generate favorable electronic structure and decrease the OER overpotential, promoting the electrocatalytic activity. An alkaline water electrolyzer is established using CF/VGSs/MoS2/FeCoNi(OH)x anode for overall water splitting, which generates a current density of 100 mA cm−2 at 1.59 V with excellent stability over 100 h. Our highly efficient catalysts have great prospect for water electrolysis.

3D self-supported Ni(PO3)2–MoO3nanorods anchored on nickel foam for highly efficient overall water splitting

Nanoscale ◽  
2018 ◽  
Vol 10 (47) ◽  
pp. 22173-22179 ◽  
Author(s):  
Kai Li ◽  
Jingwen Ma ◽  
Xinglong Guan ◽  
Hongwei He ◽  
Min Wang ◽  
...  
Keyword(s):  
Energy Source ◽  
Water Splitting ◽  
Nickel Foam ◽  
Sustainable Energy ◽  
Environmental Crisis ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Supported Ni

Electrolyzing water as a sustainable energy source is a promising and appealing method to resolve the environmental crisis.

Enhancing charge separation on high symmetry SrTiO3exposed with anisotropic facets for photocatalytic water splitting

2016 ◽  
Vol 9 (7) ◽  
pp. 2463-2469 ◽  
Author(s):  
Linchao Mu ◽  
Yue Zhao ◽  
Ailong Li ◽  
Shengyang Wang ◽  
Zhiliang Wang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Charge Separation ◽  
High Symmetry ◽  
Photocatalytic Water Splitting ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Spatial Charge

Spatial charge separation achieved on the anisotropic facets of high symmetry SrTiO3nanocrystals for highly efficient photocatalytic overall water splitting.

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