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.

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.

Controllable Synthesis of Ruthenium Phosphides (RuP and RuP2) for pH-Universal Hydrogen Evolution Reaction

2018 ◽  
Vol 6 (5) ◽  
pp. 6388-6394 ◽  
Author(s):  
Qingbo Chang ◽  
Jingwen Ma ◽  
Yuanzhi Zhu ◽  
Zhen Li ◽  
Danyun Xu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Controllable Synthesis

scholarly journals Hydrogen Evolution Reaction Property of Molybdenum Disulfide/Nickel Phosphide Hybrids in Alkaline Solution

Metals ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 359 ◽  
Author(s):  
Fan Yang ◽  
Ning Kang ◽  
Jiayun Yan ◽  
Xiuli Wang ◽  
Jun He ◽  
...  
Keyword(s):  
Molybdenum Disulfide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Alkaline Solution ◽  
Nickel Phosphide

Mesoporous Pd@Ru Core–Shell Nanorods for Hydrogen Evolution Reaction in Alkaline Solution

2018 ◽  
Vol 10 (40) ◽  
pp. 34147-34152 ◽  
Author(s):  
Yiqi Luo ◽  
Xuan Luo ◽  
Geng Wu ◽  
Zhijun Li ◽  
Guanzhong Wang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Alkaline Solution ◽  
Core Shell
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