Iron-Nickel Nanoparticles as Bifunctional Catalysts in Water Electrolysis

2017 ◽  
Vol 4 (5) ◽  
pp. 1222-1226 ◽  
Author(s):  
Jahangeer Ahmed ◽  
Tansir Ahamad ◽  
Saad M. AlShehri
2021 ◽  
Author(s):  
Yuefeng Yu ◽  
Xun He ◽  
Rong Li ◽  
Xinglong Gou

Development of noble-metal-free high-performance bifunctional catalysts for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is essential but challenging for hydrogen production from water electrolysis. Herein, amorphous bimetallic...


2020 ◽  
Vol 7 (11) ◽  
pp. 2241-2247 ◽  
Author(s):  
Shasha Tang ◽  
Xiaogang Li ◽  
Marc Courté ◽  
Jingjing Peng ◽  
Denis Fichou

Interconnected porous nanoflakes of the bimetallic CoMo2S4 are synthesized and investigated as bifunctional catalysts for highly efficient overall water electrolysis.


2020 ◽  
Author(s):  
Dario Delgado ◽  
Jan Bucher

A hydrogen economy is necessary to meet the social demands for less consumption of fossil fuels and it has several barriers that need to be addressed if this technology is to become cost effective. The oxygen evolution reaction (OER) is one of these barriers and catalysts based on nickel oxyhydroxide (NiOx) are believed to be promising for alkaline OER. We report results of iron doping for NiOx, we synthesized by electrodeposition, combinations of iron in Ni Watts solution to develop Fe- NiOx catalysts. The best sample has an overpotential of 254 mV at 10 mA cm-2 , this result is competitive to the best results found for alkaline OER. Our methodology consists of: linear and cyclic voltammetry, galvanostatic stability and electrochemical impedance spectroscopy as electrochemical techniques. In addition, physical catalyst characterization techniques include: scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy, Raman spectroscopy and surface elemental analysis by wet chemistry.<br>


2016 ◽  
Vol 18 (8) ◽  
pp. 2287-2295 ◽  
Author(s):  
Jinfa Chang ◽  
Liang Liang ◽  
Chenyang Li ◽  
Minglei Wang ◽  
Junjie Ge ◽  
...  

Ultrathin CoP nanosheets are prepared by a green and facile approach and found to be an effective and robust bifunctional catalyst material for OER and HER in a basic solution.


2009 ◽  
Vol 113 (1) ◽  
pp. 412-416 ◽  
Author(s):  
Yuanzhi Chen ◽  
Xiaohua Luo ◽  
Guang-Hui Yue ◽  
Xuetao Luo ◽  
Dong-Liang Peng

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