Carbon doped molybdenum disulfide nanosheets stabilized on graphene for the hydrogen evolution reaction with high electrocatalytic ability

Nanoscale ◽  
2016 ◽  
Vol 8 (3) ◽  
pp. 1676-1683 ◽  
Author(s):  
Yong Li ◽  
Jiao Wang ◽  
Xike Tian ◽  
Longlong Ma ◽  
Chu Dai ◽  
...  
Keyword(s):  
Molybdenum Disulfide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Solvothermal Process ◽  
Carbon Doped ◽  
Molybdenum Disulfide Nanosheets

Thin and edge-rich molybdenum disulfide nanosheets, with carbon doped in the interlayers and decorated on graphene, were developed by a facile solvothermal process for the hydrogen evolution reaction.

scholarly journals Molybdenum Disulfide Nanosheets Decorated with Platinum Nanoparticle as a High Active Electrocatalyst in Hydrogen Evolution Reaction

2022 ◽  
Vol 17 (1) ◽  
Author(s):  
Mina Razavi ◽  
M. Sookhakian ◽  
Boon Tong Goh ◽  
Hadariah Bahron ◽  
Eyas Mahmoud ◽  
...  
Keyword(s):  
Molybdenum Disulfide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Acidic Medium ◽  
High Performance ◽  
Hydrogen Adsorption ◽  
Electrochemical Impedance ◽  
Pt Nanoparticles ◽  
Platinum Nanoparticle ◽  
Molybdenum Disulfide Nanosheets

AbstractElectrochemical hydrogen evolution reaction (HER) refers to the process of generating hydrogen by splitting water molecules with applied external voltage on the active catalysts. HER reaction in the acidic medium can be studied by different mechanisms such as Volmer reaction (adsorption), Heyrovsky reaction (electrochemical desorption) or Tafel reaction (recombination). In this paper, facile hydrothermal methods are utilized to synthesis a high-performance metal-inorganic composite electrocatalyst, consisting of platinum nanoparticles (Pt) and molybdenum disulfide nanosheets (MoS2) with different platinum loading. The as-synthesized composite is further used as an electrocatalyst for HER. The as-synthesized Pt/Mo-90-modified glassy carbon electrode shows the best electrocatalytic performance than pure MoS2 nanosheets. It exhibits Pt-like performance with the lowest Tafel slope of 41 mV dec−1 and superior electrocatalytic stability in an acidic medium. According to this, the HER mechanism is related to the Volmer-Heyrovsky mechanism, where hydrogen adsorption and desorption occur in the two-step process. According to electrochemical impedance spectroscopy analysis, the presence of Pt nanoparticles enhanced the HER performance of the MoS2 nanosheets because of the increased number of charge carriers transport.

Vertically aligned oxygen-doped molybdenum disulfide nanosheets grown on carbon cloth realizing robust hydrogen evolution reaction

2016 ◽  
Vol 3 (9) ◽  
pp. 1160-1166 ◽  
Author(s):  
Junfeng Xie ◽  
Jianping Xin ◽  
Guanwei Cui ◽  
Xinxia Zhang ◽  
Lijie Zhou ◽  
...  
Keyword(s):  
Molybdenum Disulfide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Carbon Cloth ◽  
Hybrid Catalyst ◽  
Vertically Aligned ◽  
Molybdenum Disulfide Nanosheets

A synergistically optimized oxygen-incorporated MoS2/carbon cloth hybrid catalyst was successfully fabricated, realizing enhanced hydrogen-evolving activity and superior stability.

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