Molybdenum sulfide clusters immobilized on defective graphene: a stable catalyst for the hydrogen evolution reaction

2018 ◽  
Vol 6 (5) ◽  
pp. 2289-2294 ◽  
Author(s):  
Yixin Ouyang ◽  
Qiang Li ◽  
Li Shi ◽  
Chongyi Ling ◽  
Jinlan Wang
Keyword(s):  
High Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Molybdenum Sulfide ◽  
Good Stability ◽  
Composite Catalyst ◽  
Stable Catalyst ◽  
Sulfide Clusters ◽  
Defective Graphene

We design a composite catalyst composed of molybdenum sulfide clusters and defective graphene with high activity and good stability for hydrogen evolution.

Non-stoichiometric molybdenum sulfide clusters and their reactions with the hydrogen molecule

2021 ◽  
Vol 23 (1) ◽  
pp. 347-355
Author(s):  
Yan Chen ◽  
Jia-Jun Deng ◽  
Wen-Wen Yao ◽  
Joseph Israel Gurti ◽  
Wei Li ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Hydrogen Molecule ◽  
Molybdenum Sulfide ◽  
Atom Transfer ◽  
Sulfide Clusters

The empty bridge site of Mo–Mo in non-stoichiometric molybdenum sulfide clusters may act a bridge for H atom transfer and be beneficial for hydrogen evolution reaction.

Electrodeposited rhenium–cobalt alloy with high activity for acidic hydrogen evolution reaction

2021 ◽  
Vol 95 ◽  
pp. 357-366
Author(s):  
Hyunki Kim ◽  
Junhyeong Kim ◽  
Gyeong Ho Han ◽  
Wenwu Guo ◽  
Seokjin Hong ◽  
...  
Keyword(s):  
High Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Cobalt Alloy ◽  
Acidic Hydrogen

3D flexible hydrogen evolution electrodes with Se-promoted molybdenum sulfide nanosheet arrays

RSC Advances ◽  
2016 ◽  
Vol 6 (14) ◽  
pp. 11077-11080 ◽  
Author(s):  
Zonghua Pu ◽  
Shiyong Wei ◽  
Zhibao Chen ◽  
Shichun Mu
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Molybdenum Sulfide ◽  
Carbon Cloth ◽  
Nanosheet Arrays

Se-promoted molybdenum sulfide nanosheet arrays supported on carbon cloth are developed as a novel electrocatalyst for hydrogen evolution reaction.

scholarly journals An electrochemical anodization strategy towards high-activity porous MoS2 electrodes for the hydrogen evolution reaction

RSC Advances ◽  
2018 ◽  
Vol 8 (27) ◽  
pp. 15030-15035 ◽  
Author(s):  
Xuerui Mao ◽  
Tianliang Xiao ◽  
Qianqian Zhang ◽  
Zhaoyue Liu
Keyword(s):  
High Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrochemical Anodization

An electrochemical anodization strategy was developed for the formation of MoS2 electrodes for the hydrogen evolution reaction.

scholarly journals Effect of Ag2S Nanocrystals/Reduced Graphene Oxide Interface on Hydrogen Evolution Reaction

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 948
Author(s):  
Chen Zhao ◽  
Zhi Yu ◽  
Jun Xing ◽  
Yuting Zou ◽  
Huiwen Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Fossil Fuels ◽  
Composite Catalyst ◽  
Oxide Interface ◽  
Electrochemical Catalyst ◽  
Reduced Graphene

The development of efficient electrocatalyst to produce molecular hydrogen from water is receiving considerable attention, in an effort to decrease our reliance on fossil fuels. The prevention of the aggregation of active sites during material synthesis, in order to increase charge transport properties of electrocatalysts, is needed. We have designed, synthesized, and studied a Ag2S/reduced graphene oxide (rGO) electrochemical catalyst (for hydrogen evolution) from water. The Ag2S nanocrystals were synthesized by the solvothermal method in which the rGO was added. The addition of the rGO resulted in the formation of smaller Ag2S nanocrystals, which consequently increased the electrical conductivity of the composite catalyst. The composite catalyst showed a higher electrochemical catalytic activity than the one with an absence of rGO. At a current density of 10 mA/cm2, a low overpotential of 120 mV was obtained. A Tafel slope of 49.1 mV/dec suggests a Volmer–Herovsky mechanism for the composite catalyst. These results may provide a novel strategy for developing hydrogen evolution reaction (HER) electrocatalysts, via the combining of a nano-semiconductor catalyst with a 2D material.

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