MXene nanoribbons as electrocatalysts for the hydrogen evolution reaction with fast kinetics

2018 ◽  
Vol 20 (29) ◽  
pp. 19390-19397 ◽  
Author(s):  
Xiaowei Yang ◽  
Nan Gao ◽  
Si Zhou ◽  
Jijun Zhao
Keyword(s):  
Electrical Conductivity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Two Dimensional ◽  
Fast Kinetics ◽  
New Class ◽  
Two Dimensional Materials

MXenes, a new class of two-dimensional materials, arouse great interest due to their diverse chemistries, superior electrical conductivity and stability.

scholarly journals Ultra-Thin SnS2-Pt Nanocatalyst for Efficient Hydrogen Evolution Reaction

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2337
Author(s):  
Yanying Yu ◽  
Jie Xu ◽  
Jianwei Zhang ◽  
Fan Li ◽  
Jiantao Fu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Pt Nanoclusters ◽  
Two Dimensional Materials ◽  
Low Load ◽  
Metal Dichalcogenides ◽  
Poor Stability

Transition-metal dichalcogenides (TMDs) materials have attracted much attention for hydrogen evolution reaction (HER) as a new catalyst, but they still have challenges in poor stability and high reaction over-potential. In this study, Ultra-thin SnS2 nanocatalysts were synthesized by simple hydrothermal method, and low load of Pt was added to form stable SnS2-Pt-3 (the content of platinum is 0.5 wt %). The synergistic effect between ultra-thin SnS2 rich in active sites and individual dispersed Pt nanoclusters can significantly reduce the reaction barrier and further accelerate HER reaction kinetics. Hence, SnS2-Pt-3 exhibits a low overpotential of 210 mV at the current density of 10 mA cm−2. It is worth noting that SnS2-Pt-3 has a small Tafel slope (126 mV dec−1) in 0.5 M H2SO4, as well as stability. This work provides a new option for the application of TMDs materials in efficient hydrogen evolution reaction. Moreover, this method can be easily extended to other catalysts with desired two-dimensional materials.

Two-dimensional materials as catalysts for solar fuels: hydrogen evolution reaction and CO2 reduction

2019 ◽  
Vol 7 (2) ◽  
pp. 430-454 ◽  
Author(s):  
Amirhossein Hasani ◽  
Mahider Tekalgne ◽  
Quyet Van Le ◽  
Ho Won Jang ◽  
Soo Young Kim
Keyword(s):  
Global Warming ◽  
Renewable Energy ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Fossil Fuel ◽  
Co2 Reduction ◽  
Solar Fuels ◽  
Two Dimensional ◽  
Two Dimensional Materials

The issues of global warming and fossil fuel shortage have increased the demand for clean and renewable energy.

scholarly journals Recent advances of MXenes as electrocatalysts for hydrogen evolution reaction

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Saishuai Bai ◽  
Meiqing Yang ◽  
Jizhou Jiang ◽  
Xiaomiao He ◽  
Jing Zou ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Active Surface ◽  
Active Surface Area ◽  
Two Dimensional ◽  
Metal Carbides ◽  
Transition Metal Carbides ◽  
Comprehensive Study

AbstractMXenes, an emerging two-dimensional (2D) transition metal carbides, nitrides and carbonitrides, have exhibited great potential as electrocatalysts for hydrogen evolution reaction (HER) due to the excellent characters, including excellent structural and chemical stability, superior electrical conductivity, and large active surface area. In this comprehensive study, firstly, the preparation advances of MXenes are systematically summarized. Then, the representative applications of MXenes-based HER electrocatalysts are introduced, from experimental and theoretical aspects. Thirdly, the strategies for improving HER catalytic activity of MXenes are demonstrated, such as optimizing active sites by termination modification and metal-atom doping, increasing active sites by fabricating various nanostructures. Finally, the existing challenges and new opportunities for MXenes-based electrocatalysts are also elucidated. This paper provides reference for the future development of new and efficient MXenes-based electrocatalysts for hydrogen production through water-splitting technology.

Hierarchical molybdenum-doped NiCoP@carbon microspheres: A highly-efficient electrocatalyst for hydrogen evolution reaction

2021 ◽  
Author(s):  
Changhai Liu ◽  
Yanhua Yao ◽  
Lei Sun ◽  
Linlin Luo ◽  
Wenchang Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Carbon Microspheres ◽  
Fast Kinetics ◽  
Highly Efficient

Herein, we present hierarchical Mo-doped NiCoP@carbon microspheres, which exhibits noticeable enhancement of catalytic activity and fast kinetics for hydrogen evolution. An overpotentials of 74.6 mV at 10 mA cm-2 and...

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