Electronically modulated nickel boron by CeOx doping as a highly efficient electrocatalyst towards overall water splitting

2022 ◽  
Author(s):  
Huimin Wang ◽  
Huixiang Liu ◽  
Tao Feng ◽  
Lincai Wang ◽  
Wenyi Yuan ◽  
...  

A novel CeOx-NiB@NF catalyst with high activity and good stability towards both the HER and OER has been fabricated.

2020 ◽  
Vol 10 (24) ◽  
pp. 8314-8324
Author(s):  
Huan Liu ◽  
Xiaoning Li ◽  
Liangbing Ge ◽  
Cailing Peng ◽  
Liuyang Zhu ◽  
...  

In situ synthesized Ru-doped FeCoP nanoarray electrocatalysts with high activity and stability for overall water splitting.


2020 ◽  
Vol 4 (2) ◽  
pp. 582-588 ◽  
Author(s):  
Yu-Yang Sun ◽  
Mei-Yan Jiang ◽  
Lian-Kui Wu ◽  
Guang-Ya Hou ◽  
Yi-Ping Tang ◽  
...  

Developing a bifunctional electrocatalyst with a facile method, low cost, excellent performance and good stability for overall water splitting is essential for the wide application of hydrogen production.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xixi Ji ◽  
Yanhong Lin ◽  
Jie Zeng ◽  
Zhonghua Ren ◽  
Zijia Lin ◽  
...  

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.


Nanoscale ◽  
2018 ◽  
Vol 10 (47) ◽  
pp. 22173-22179 ◽  
Author(s):  
Kai Li ◽  
Jingwen Ma ◽  
Xinglong Guan ◽  
Hongwei He ◽  
Min Wang ◽  
...  

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


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