scholarly journals The Hydrogen Evolution Reaction on Nanostructured Molybdenum Disulfide

Author(s):  
Nicolas Alonso-Vante ◽  
Carlos Augusto Campos-Roldán

This short review analyzes the catalytic activity of nanostructured molybdenum disulfide (MoS2). The phase transition of nanostructured MoS2 semiconductor from 2H (hexagonal) to 1T (trigonal) leads to a metal-like material through so-called surface defect engineering by chemical exfoliation. The 1T phase was found to be active for the electrocatalytic hydrogen evolution reaction (HER). Various key aspects vis-à-vis the MoS2 synthesis, characterization, support interaction, and application are, herein, highlighted.

Nano Research ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1613-1618 ◽  
Author(s):  
Cheng Sun ◽  
Peipei Wang ◽  
Hao Wang ◽  
Chuan Xu ◽  
Juntong Zhu ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yi Shi ◽  
Zhi-Rui Ma ◽  
Yi-Ying Xiao ◽  
Yun-Chao Yin ◽  
Wen-Mao Huang ◽  
...  

AbstractTuning metal–support interaction has been considered as an effective approach to modulate the electronic structure and catalytic activity of supported metal catalysts. At the atomic level, the understanding of the structure–activity relationship still remains obscure in heterogeneous catalysis, such as the conversion of water (alkaline) or hydronium ions (acid) to hydrogen (hydrogen evolution reaction, HER). Here, we reveal that the fine control over the oxidation states of single-atom Pt catalysts through electronic metal–support interaction significantly modulates the catalytic activities in either acidic or alkaline HER. Combined with detailed spectroscopic and electrochemical characterizations, the structure–activity relationship is established by correlating the acidic/alkaline HER activity with the average oxidation state of single-atom Pt and the Pt–H/Pt–OH interaction. This study sheds light on the atomic-level mechanistic understanding of acidic and alkaline HER, and further provides guidelines for the rational design of high-performance single-atom catalysts.


Metals ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 359 ◽  
Author(s):  
Fan Yang ◽  
Ning Kang ◽  
Jiayun Yan ◽  
Xiuli Wang ◽  
Jun He ◽  
...  

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