Transition metal chalcogenides based nanocomposites as efficient electrocatalyst for hydrogen evolution reaction over the entire pH range

2020 ◽  
Vol 45 (46) ◽  
pp. 24219-24231 ◽  
Author(s):  
Kartick Chandra Majhi ◽  
Mahendra Yadav
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Metal Chalcogenides ◽  
Transition Metal Chalcogenides ◽  
Ph Range

scholarly journals Interface Engineering of Heterogeneous Transition Metal Chalcogenides for Electrocatalytic Hydrogen Evolution

2022 ◽  
Author(s):  
Ruru Song ◽  
Deyu Li ◽  
Yafeng Xu ◽  
Junfeng Gao ◽  
Lu Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Metal Chalcogenides ◽  
Interface Engineering ◽  
Transition Metal Chalcogenides

MoS2 and MoSe2 are recognized as the promising electrocatalysts for hydrogen evolution reaction (HER), but the active sites are mainly located on the edge, limiting their electrochemical efficiency. Here we...

scholarly journals Facile Synthesis of N-Doped WS2 Nanosheets as an Efficient and Stable Electrocatalyst for Hydrogen Evolution Reaction in Acidic Media

Catalysts ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1238 ◽  
Author(s):  
Arpan Kumar Nayak ◽  
Enhbayar Enhtuwshin ◽  
So Jung Kim ◽  
HyukSu Han
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Chemical Agent ◽  
Metal Chalcogenides ◽  
Practical Applications ◽  
Transition Metal Chalcogenides ◽  
Acidic Conditions ◽  
Ws2 Nanosheets

Transition metal chalcogenides have been widely studied as a promising electrocatalyst for the hydrogen evolution reaction (HER) in acidic conditions. Among various transition metal chalcogenides, tungsten disulfide (WS2) is a distinguishable candidate due to abundant active sites and good electrical properties. Herein, we report a facile and selective synthetic method to synthesize WS2 with an intriguing two-dimensional nanostructure by using cysteine (C3H7NO2S) as a chemical agent. In addition, nitrogen can be incorporated during chemical synthesis from cysteine, which may be helpful for enhancing the HER. The electrocatalytic activity of N-doped WS2 exhibits a promising HER in acidic conditions, which are not only higher than W18O49 nanowires and hex-WO3 nanowires, but also comparable to the benchmark Pt/C. Moreover, excellent electrocatalytic stability is also demonstrated for acidic HER during long-term tests, thus highlighting its potential use of practical applications as an electrolyzer.

In situ photo-assisted deposition and photocatalysis of ZnIn2S4/transition metal chalcogenides for enhanced degradation and hydrogen evolution under visible light

2016 ◽  
Vol 45 (2) ◽  
pp. 552-560 ◽  
Author(s):  
Wei Yang Lim ◽  
Minghui Hong ◽  
Ghim Wei Ho
Keyword(s):  
Hydrogen Production ◽  
Transition Metal ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Metal Chalcogenides ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Production ◽  
Transition Metal Chalcogenides ◽  
Enhanced Degradation

In-situ aqueous photo-assisted deposition of transition metal chalcogenides co-catalyst has shown to infiltrate hierarchical host ZnIn2S4 photocatalyst for efficient photocatalytic hydrogen production and degradation under visible light.

scholarly journals Transition Metal Chalcogenides for the Electrocatalysis of Water

2020 ◽  
Author(s):  
Chi-Ang Tseng ◽  
Chuan-Pei Lee
Keyword(s):  
Transition Metal ◽  
Vapor Phase ◽  
Hydrogen Evolution Reaction ◽  
Solvothermal Synthesis ◽  
Chemical Vapor ◽  
Metal Chalcogenides ◽  
Preparation Methods ◽  
Transition Metal Chalcogenides ◽  
Electrochemical Water Splitting

Sustainable energy technology has received enormous attention in recent years. Specifically, electrochemical water splitting is considered to be the cleanest technique for the production of promising fuels, for example, hydrogen and oxygen, where transition metal (di)chalcogenides (TMCs) as electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) have been a growing interest. In this chapter, the typical preparation methods of TMCs such as chemical vapor phase deposition (CVD) and solvothermal synthesis are introduced. Then, several TMC materials for catalyzing HER and OER are reviewed. Most importantly, this chapter also introduced some in situ approaches to realize the mechanism of electrocatalytic behavior toward HER and OER. Finally, the conclusion and futuristic prospects of TMCs in HER and OER are discussed.

scholarly journals A universal pH range and a highly efficient Mo2C-based electrocatalyst for the hydrogen evolution reaction

2020 ◽  
Vol 8 (38) ◽  
pp. 19879-19886
Author(s):  
Jiajia Huang ◽  
Jingyi Wang ◽  
Ruikuan Xie ◽  
Zhihong Tian ◽  
Guoliang Chai ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Carbon Matrix ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Molybdenum Carbides ◽  
Ph Range ◽  
Nitrogen Doped Carbon

We designed a series of transition metal-modified molybdenum carbides in nitrogen doped carbon matrix for investigating and boosting the performance of Mo2C-based electrocatalysts in all-pH media by increasing the Mo2+ content in catalysts.

Engineering Sulfur Vacancies into Fe9S10 Nanosheet Arrays for Efficient Alkaline Hydrogen Evolution

Nanoscale ◽  
2021 ◽  
Author(s):  
Wenjun He ◽  
Jianing Cheng ◽  
Yaohui Gao ◽  
Caichi Liu ◽  
Jianling Zhao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Metal Sulfides ◽  
Transition Metal Sulfides ◽  
Nanosheet Arrays ◽  
Excellent Activity ◽  
Earth Abundant ◽  
Iron Based

The development of earth-abundant transition metal sulfides electrocatalysts with excellent activity and stability toward alkaline hydrogen evolution reaction (HER) is critical but challenging. Iron-based sulfides are favored due to their...

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