scholarly journals Nickel cobalt phosphide with three-dimensional nanostructure as a highly efficient electrocatalyst for hydrogen evolution reaction in both acidic and alkaline electrolytes

Nano Research ◽  
2018 ◽  
Vol 12 (2) ◽  
pp. 375-380 ◽  
Author(s):  
Bo Ma ◽  
Zhengchun Yang ◽  
Yantao Chen ◽  
Zhihao Yuan
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Three Dimensional ◽  
Cobalt Phosphide ◽  
Highly Efficient ◽  
Nickel Cobalt ◽  
Alkaline Electrolytes

scholarly journals WS(1−x)Sex Nanoparticles Decorated Three-Dimensional Graphene on Nickel Foam: A Robust and Highly Efficient Electrocatalyst for the Hydrogen Evolution Reaction

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 929 ◽  
Author(s):  
Sajjad Hussain ◽  
Kamran Akbar ◽  
Dhanasekaran Vikraman ◽  
Rana Afzal ◽  
Wooseok Song ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Large Scale ◽  
Nickel Foam ◽  
Transition Metal Dichalcogenides ◽  
Three Dimensional ◽  
Cost Effective ◽  
Highly Efficient ◽  
Highly Active ◽  
Earth Abundant

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.

C60-Decorated nickel–cobalt phosphide as an efficient and robust electrocatalyst for hydrogen evolution reaction

Nanoscale ◽  
2018 ◽  
Vol 10 (48) ◽  
pp. 23070-23079 ◽  
Author(s):  
Zhiling Du ◽  
Nahar Jannatun ◽  
Danyang Yu ◽  
Juan Ren ◽  
Wenhuan Huang ◽  
...  
Keyword(s):  
Energy Conversion ◽  
High Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Crucial Role ◽  
Cobalt Phosphide ◽  
Nickel Cobalt ◽  
Splitting Water

High-activity electrocatalysts play a crucial role in energy conversion through splitting water to produce hydrogen.

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