Directly Synthesis of 1T-phase MoS2 Nanosheets with Abundance Sulfur-Vacancies through (CH3)4N+ Cations-Intercalation for Hydrogen Evolution Reaction†

2021 ◽  
Author(s):  
Hongqiang Jin ◽  
Yu Yu ◽  
Qikai Shen ◽  
Peipei Li ◽  
Jia Yu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Noble Metals ◽  
Single Layer ◽  
Mos2 Nanosheets ◽  
Molybdenum Disulphide

1T-phase molybdenum disulphide (MoS2) is considered as one of the most promising candidates to substitute noble metals in hydrogen evolution reaction (HER). Fabricating single layer 1T-phase MoS2 with abundance sulfur...

Size-selective synthesis of platinum nanoparticles on transition-metal dichalcogenides for the hydrogen evolution reaction

2021 ◽  
Author(s):  
Liang Mei ◽  
Xiaoping Gao ◽  
Zhan Gao ◽  
Qingyong Zhang ◽  
Xinge Yu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Synergistic Effects ◽  
Transition Metal Dichalcogenides ◽  
Single Layer ◽  
Pt Nanoparticles ◽  
Mos2 Nanosheets ◽  
Type Size ◽  
Metal Dichalcogenides ◽  
Mass Activity

Pt-MoS2 composites are fabricated via growing tunable Pt nanoparticles size (NPs, 2–6 nm) on single-layer MoS2 nanosheets. Which have shown excellent performance for hydrogen evolution reaction (HER) with the Pt NPs exhibiting a volcano-type size effect toward mass activity due to the synergistic effects between the Pt NPs and MoS2.

scholarly journals Microwave-Assisted vs. Conventional Hydrothermal Synthesis of MoS2 Nanosheets: Application towards Hydrogen Evolution Reaction

Crystals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1040 ◽  
Author(s):  
Getachew Solomon ◽  
Raffaello Mazzaro ◽  
Vittorio Morandi ◽  
Isabella Concina ◽  
Alberto Vomiero
Keyword(s):  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Current Density ◽  
Crystal Morphology ◽  
Synthesis Method ◽  
Synthesis Methods ◽  
Mos2 Nanosheets ◽  
Microwave Assisted

Molybdenum sulfide (MoS2) has emerged as a promising catalyst for hydrogen evolution applications. The synthesis method mainly employed is a conventional hydrothermal method. This method requires a longer time compared to other methods such as microwave synthesis methods. There is a lack of comparison of the two synthesis methods in terms of crystal morphology and its electrochemical activities. In this work, MoS2 nanosheets are synthesized using both hydrothermal (HT-MoS2) and advanced microwave methods (MW-MoS2), their crystal morphology, and catalytical efficiency towards hydrogen evolution reaction (HER) were compared. MoS2 nanosheet is obtained using microwave-assisted synthesis in a very short time (30 min) compared to the 24 h hydrothermal synthesis method. Both methods produce thin and aggregated nanosheets. However, the nanosheets synthesized by the microwave method have a less crumpled structure and smoother edges compared to the hydrothermal method. The as-prepared nanosheets are tested and used as a catalyst for hydrogen evolution results in nearly similar electrocatalytic performance. Experimental results showed that: HT-MoS2 displays a current density of 10 mA/cm2 at overpotential (−280 mV) compared to MW-MoS2 which requires −320 mV to produce a similar current density, suggesting that the HT-MoS2 more active towards hydrogen evolutions reaction.

MoS2 nanosheets grown on nickel chalcogenides: controllable synthesis and electrocatalytic origins for the hydrogen evolution reaction in alkaline solution

2019 ◽  
Vol 7 (37) ◽  
pp. 21514-21522 ◽  
Author(s):  
Anchun Long ◽  
Wanrong Li ◽  
Min Zhou ◽  
Weicheng Gao ◽  
Bitao Liu ◽  
...  
Keyword(s):  
Experimental Data ◽  
Theoretical Calculation ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Alkaline Solution ◽  
Mos2 Nanosheets ◽  
Controllable Synthesis ◽  
Calculation Results ◽  
Catalytic Mechanisms

Catalytic mechanisms and activity trend of Ni-based heterostructures were revealed by combining experimental data and theoretical calculation results.

Few-layer FePS3 decorated with thin MoS2 nanosheets for efficient hydrogen evolution reaction in alkaline and acidic media

2020 ◽  
Vol 525 ◽  
pp. 146623 ◽  
Author(s):  
Hongjiao Huang ◽  
Junnan Song ◽  
Deshuang Yu ◽  
Yanan Hao ◽  
Yonghan Wang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Mos2 Nanosheets ◽  
Acidic Media

ChemInform Abstract: Cross-Coupling Hydrogen Evolution Reaction in Homogeneous Solution Without Noble Metals.

ChemInform ◽  
2014 ◽  
Vol 45 (37) ◽  
pp. no-no
Author(s):  
Jian-Ji Zhong ◽  
Qing-Yuan Meng ◽  
Bin Liu ◽  
Xu-Bing Li ◽  
Xue-Wang Gao ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Noble Metals ◽  
Homogeneous Solution ◽  
Cross Coupling

scholarly journals Vanadium doped few-layer ultrathin MoS2 nanosheets on reduced graphene oxide for high-performance hydrogen evolution reaction

RSC Advances ◽  
2019 ◽  
Vol 9 (39) ◽  
pp. 22232-22239 ◽  
Author(s):  
Ashwani Kumar Singh ◽  
Jagdees Prasad ◽  
Uday Pratap Azad ◽  
Ashish Kumar Singh ◽  
Rajiv Prakash ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Solvothermal Synthesis ◽  
High Performance ◽  
Room Temperature ◽  
Mos2 Nanosheets ◽  
Reduced Graphene ◽  
Ultrathin Mos2 Nanosheets

In this paper, we demonstrate a facile solvothermal synthesis of a vanadium(v) doped MoS2-rGO nanocomposites for highly efficient electrochemical hydrogen evolution reaction (HER) at room temperature.

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