Controlled synthesis of bifunctional particle-like Mo/Mn-NixSy/NF electrocatalyst for highly efficient overall water splitting

2019 ◽  
Vol 48 (20) ◽  
pp. 6718-6729 ◽  
Author(s):  
Yaqiong Gong ◽  
Yang Zhi ◽  
Yu Lin ◽  
Tao Zhou ◽  
Jinhui Li ◽  
...  

Mo/Mn-NixSy/NF catalyst was successfully synthesized and exhibited excellent catalytic activities and long-term durability.

2017 ◽  
Vol 5 (32) ◽  
pp. 17064-17072 ◽  
Author(s):  
Zheye Zhang ◽  
Zhengran Yi ◽  
Juan Wang ◽  
Xin Tian ◽  
Pei Xu ◽  
...  

A carbon-based, bifunctional metal-free water splitting electrocatalyst is prepared using a nitrogen-enriched polydopamine analogue to produce defect-rich porous carbon, which exhibits superb catalytic activities for both the HER and the OER.


2019 ◽  
Vol 48 (20) ◽  
pp. 7025-7025
Author(s):  
Yaqiong Gong ◽  
Zhi Yang ◽  
Yu Lin ◽  
Tao Zhou ◽  
Jinhui Li ◽  
...  

Correction for ‘Controlled synthesis of bifunctional particle-like Mo/Mn-NixSy/NF electrocatalyst for highly efficient overall water splitting’ by Yaqiong Gong et al., Dalton Trans., 2019, DOI: 10.1039/c9dt00957d.


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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