Synthesis of non-noble NiMoO4–Ni(OH)2/NF bifunctional electrocatalyst and its application in water-urea electrolysis

2020 ◽  
Vol 45 (41) ◽  
pp. 21040-21050 ◽  
Author(s):  
Shengnan Hu ◽  
Huimin Wu ◽  
Chuanqi Feng ◽  
Yu Ding
Keyword(s):  
Bifunctional Electrocatalyst ◽  
Urea Electrolysis

Porous and amorphous cobalt hydroxysulfide core–shell nanoneedles on Ti-mesh as a bifunctional electrocatalyst for energy-efficient hydrogen production via urea electrolysis

2021 ◽  
Author(s):  
Yu Jiang ◽  
Shanshan Gao ◽  
Gongchen Xu ◽  
Xiaoming Song
Keyword(s):  
Hydrogen Production ◽  
High Activity ◽  
Energy Efficient ◽  
Bifunctional Catalyst ◽  
Core Shell ◽  
Bifunctional Electrocatalyst ◽  
Urea Electrolysis ◽  
Ti Mesh

Porous and amorphous CoSx(OH)y core–shell nanoneedles covered by numerous ultra-thin small nanosheets are synthesized successfully on Ti-mesh, and act as a high activity and stability bifunctional catalyst for urea electrolysis.

Template-directed assembly of urchin-like CoSx/Co-MOF as an efficient bifunctional electrocatalyst for overall water and urea electrolysis

2020 ◽  
Vol 7 (14) ◽  
pp. 2602-2610 ◽  
Author(s):  
Huizhu Xu ◽  
Ke Ye ◽  
Kai Zhu ◽  
Jinling Yin ◽  
Jun Yan ◽  
...  
Keyword(s):  
Directed Assembly ◽  
Bifunctional Catalyst ◽  
Catalytic Performance ◽  
Bifunctional Electrocatalyst ◽  
Urea Electrolysis

The urchin-like CoSx/Co-MOF as a bifunctional catalyst has good catalytic performance toward UOR and HER.

scholarly journals Ni2P nanocrystals embedded Ni-MOF nanosheets supported on nickel foam as bifunctional electrocatalyst for urea electrolysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Haitao Wang ◽  
Haiyan Zou ◽  
Yingying Liu ◽  
Zhenglong Liu ◽  
Wenshuang Sun ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Nickel Foam ◽  
Metal Organic Framework ◽  
Cell Voltage ◽  
Bifunctional Electrocatalyst ◽  
Electrochemical Application ◽  
Urea Electrolysis ◽  
Metal Organic ◽  
A Cell ◽  
A Current

AbstractIt’s highly desired but challenging to synthesize self-supporting nanohybrid made of conductive nanoparticles with metal organic framework (MOF) materials for the application in the electrochemical field. In this work, we report the preparation of Ni2P embedded Ni-MOF nanosheets supported on nickel foam through partial phosphidation (Ni2P@Ni-MOF/NF). The self-supporting Ni2P@Ni-MOF/NF was directly tested as electrode for urea electrolysis. When served as anode for urea oxidation reaction (UOR), it only demands 1.41 V (vs RHE) to deliver a current of 100 mA cm−2. And the overpotential of Ni2P@Ni-MOF/NF to reach 10 mA cm−2 for hydrogen evolution reaction HER was only 66 mV, remarkably lower than Ni2P/NF (133 mV). The exceptional electrochemical performance was attributed to the unique structure of Ni2P@Ni-MOF and the well exposed surface of Ni2P. Furthermore, the Ni2P@Ni-MOF/NF demonstrated outstanding longevity for both HER and UOR. The electrolyzer constructed with Ni2P@Ni-MOF/NF as bifunctional electrode can attain a current density of 100 mA cm−2 at a cell voltage as low as 1.65 V. Our work provides new insights for prepare MOF based nanohydrid for electrochemical application.

scholarly journals A structurally versatile nickel phosphite acting as a robust bifunctional electrocatalyst for overall water splitting

2018 ◽  
Vol 11 (5) ◽  
pp. 1287-1298 ◽  
Author(s):  
Prashanth W. Menezes ◽  
Chakadola Panda ◽  
Stefan Loos ◽  
Florian Bunschei-Bruns ◽  
Carsten Walter ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting

The mechanistically distinct and synergistic role of phosphite anions in hydrogen evolution and nickel cations in oxygen evolution have been uncovered for active and durable overall water splitting catalysis in nickel phosphite.

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