A robust hydrogen evolution catalyst based on crystalline nickel phosphide nanoflakes on three-dimensional graphene/nickel foam: high performance for electrocatalytic hydrogen production from pH 0–14

2015 ◽  
Vol 3 (5) ◽  
pp. 1941-1946 ◽  
Author(s):  
Ali Han ◽  
Song Jin ◽  
Huanlin Chen ◽  
Hengxing Ji ◽  
Zijun Sun ◽  
...  

A highly efficient cathode containing 3D Ni2P/graphene layers/nickel foam has been successfully constructed for electrocatalytic H2 evolution reaction (HER).

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 929 ◽  
Author(s):  
Sajjad Hussain ◽  
Kamran Akbar ◽  
Dhanasekaran Vikraman ◽  
Rana Afzal ◽  
Wooseok Song ◽  
...  

To find an effective alternative to scarce, high-cost noble platinum (Pt) electrocatalyst for hydrogen evolution reaction (HER), researchers are pursuing inexpensive and highly efficient materials as an electrocatalyst for large scale practical application. Layered transition metal dichalcogenides (TMDCs) are promising candidates for durable HER catalysts due to their cost-effective, highly active edges and Earth-abundant elements to replace Pt electrocatalysts. Herein, we design an active, stable earth-abundant TMDCs based catalyst, WS(1−x)Sex nanoparticles-decorated onto a 3D porous graphene/Ni foam. The WS(1−x)Sex/graphene/NF catalyst exhibits fast hydrogen evolution kinetics with a moderate overpotential of ~−93 mV to drive a current density of 10 mA cm−2, a small Tafel slope of ~51 mV dec−1, and a long cycling lifespan more than 20 h in 0.5 M sulfuric acid, which is much better than WS2/NF and WS2/graphene/NF catalysts. Our outcomes enabled a way to utilize the TMDCs decorated graphene and precious-metal-free electrocatalyst as mechanically robust and electrically conductive catalyst materials.


Nano Energy ◽  
2019 ◽  
Vol 57 ◽  
pp. 388-397 ◽  
Author(s):  
Xuanhua Li ◽  
Shaohui Guo ◽  
Wei Li ◽  
Xingang Ren ◽  
Jie Su ◽  
...  

2021 ◽  
Author(s):  
Hai-Lang Jia ◽  
Jiao Zhao ◽  
Zhiyuan Wang ◽  
Rui-Xin Chen ◽  
Mingyun Guan

Hydrogen production from water-splitting is one of the most promising hydrogen production methods, the preparation of hydrogen evolution reaction (HER) catalyst is very important. Although Pt based materials have the...


2019 ◽  
Vol 7 (11) ◽  
pp. 6337-6347 ◽  
Author(s):  
Xing Qian ◽  
Hongyu Liu ◽  
Jiahui Yang ◽  
Huiwen Wang ◽  
Jie Huang ◽  
...  

Co–Cu–WSx ball-in-ball nanospheres have been synthesized and used as highly efficient bifunctional electrocatalysts for both DSSCs and the HER.


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