Hydrothermal synthesis of core-shell MoO2/α-Mo2C heterojunction as high performance electrocatalyst for hydrogen evolution reaction

2018 ◽  
Vol 427 ◽  
pp. 693-701 ◽  
Author(s):  
Yuchuan Liu ◽  
Baobing Huang ◽  
Zailai Xie
Keyword(s):  
Hydrothermal Synthesis ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Performance ◽  
Core Shell

High-performance hydrogen evolution reaction catalysis achieved by small core-shell copper nanoparticles

2019 ◽  
Vol 551 ◽  
pp. 130-137 ◽  
Author(s):  
Cheng Liu ◽  
Huilong Dong ◽  
Yujin Ji ◽  
Nopporn Rujisamphan ◽  
Youyong Li
Keyword(s):  
Hydrogen Evolution ◽  
Copper Nanoparticles ◽  
Hydrogen Evolution Reaction ◽  
High Performance ◽  
Core Shell ◽  
Small Core

A CoMoO4–Co2Mo3O8 heterostructure with valence-rich molybdenum for a high-performance hydrogen evolution reaction in alkaline solution

2019 ◽  
Vol 7 (28) ◽  
pp. 16761-16769 ◽  
Author(s):  
Zheng Liu ◽  
Changhong Zhan ◽  
Linkai Peng ◽  
Yang Cao ◽  
Yong Chen ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Alkaline Solution ◽  
High Performance ◽  
Hydrogen Reduction ◽  
Intrinsic Activity ◽  
Step Method ◽  
Hierarchical Nanostructures ◽  
Reduction Treatment

The heterostructure CoMoO4–Co2Mo3O8 was prepared by a two-step method, including hydrothermal synthesis of CoMoO4 nanowire and subsequent hydrogen reduction treatment of CoMoO4. Due to hierarchical nanostructures of CoMoO4–Co2Mo3O8 facilitated intrinsic activity and conductivity, the outstanding performance for HER, surpassing most cobalt–molybdenum bimetal oxide.

A crystalline–amorphous Ni–Ni(OH)2 core–shell catalyst for the alkaline hydrogen evolution reaction

2020 ◽  
Vol 8 (44) ◽  
pp. 23323-23329
Author(s):  
Jing Hu ◽  
Siwei Li ◽  
Yuzhi Li ◽  
Jing Wang ◽  
Yunchen Du ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Core Shell ◽  
Alkaline Conditions

Crystalline–amorphous Ni–Ni(OH)2 core–shell assembled nanosheets exhibit outstanding electrocatalytic activity and stability for hydrogen evolution under alkaline conditions.

Flower-like tungsten-doped Fe–Co phosphides as efficient electrocatalysts for hydrogen evolution reaction

CrystEngComm ◽  
2021 ◽  
Author(s):  
Qian Zhang ◽  
Shuihua Tang ◽  
Lieha Shen ◽  
Weixiang Yang ◽  
Zhen Tang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Adsorption Energy ◽  
High Performance ◽  
Hydrogen Adsorption ◽  
Cost Effective

Developing cost-effective and high-performance electrocatalysts for hydrogen evolution reaction (HER) are imperative thanks to rapid increase of fuel-cell driven vehicles. Tungsten (W) possesses advantages of optimized hydrogen adsorption energy and...

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.

Atomic layer deposition synthesis of platinum–tungsten carbide core–shell catalysts for the hydrogen evolution reaction

2012 ◽  
Vol 48 (7) ◽  
pp. 1063-1065 ◽  
Author(s):  
Irene J. Hsu ◽  
Yannick C. Kimmel ◽  
Xiaoqiang Jiang ◽  
Brian G. Willis ◽  
Jingguang G. Chen
Keyword(s):  
Atomic Layer Deposition ◽  
Tungsten Carbide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Atomic Layer ◽  
Core Shell ◽  
Layer Deposition
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