Engineering active sites of two-dimensional MoS2 nanosheets for improving hydrogen evolution

2016 ◽  
Vol 3 (11) ◽  
pp. 1376-1380 ◽  
Author(s):  
Xiangkai Kong ◽  
Xiaochen Shen ◽  
Changlin Zhang ◽  
Shirin Norooz Oliaee ◽  
Zhenmeng Peng

S edges were peeled off to disclose inner S as new under-coordinated atoms, which exposed more fresh active sites.

ACS Catalysis ◽  
2016 ◽  
Vol 6 (10) ◽  
pp. 6723-6729 ◽  
Author(s):  
Rui Peng ◽  
Liangbo Liang ◽  
Zachary D. Hood ◽  
Abdelaziz Boulesbaa ◽  
Alexander Puretzky ◽  
...  

Author(s):  
Shize Geng ◽  
Yujin Ji ◽  
Binbin Jiang ◽  
Wenxiang Zhu ◽  
Kui Yin ◽  
...  

2017 ◽  
Vol 5 (15) ◽  
pp. 6981-6991 ◽  
Author(s):  
D. Amaranatha Reddy ◽  
Hanbit Park ◽  
Sangyeob Hong ◽  
D. Praveen Kumar ◽  
Tae Kyu Kim

This work demonstrates a simple and effective approach using hydrazine to modulate the active sites and electrical conductivity of MoS2 with the aid of ultrasonication.


2015 ◽  
Vol 51 (10) ◽  
pp. 1893-1896 ◽  
Author(s):  
Z. H. Deng ◽  
L. Li ◽  
W. Ding ◽  
K. Xiong ◽  
Z. D. Wei

The S atoms bind to active sites of RGO for the nucleation of MoS2 and its subsequent growth perpendicular to RGO.


2020 ◽  
Vol 44 (13) ◽  
pp. 10551-10561
Author(s):  
Hitanshu Kumar ◽  
Ke Wang ◽  
Fei Tang ◽  
Xierong Zeng ◽  
Lin Gan ◽  
...  

2020 ◽  
Vol 4 (6) ◽  
pp. 2869-2874 ◽  
Author(s):  
Jingyang Tian ◽  
Jiaxin Li ◽  
Anlin Feng ◽  
Xinran Han ◽  
Yuancai Lv ◽  
...  

Ultramicro MoS2 nanosheets with abundant active sites were uniformly dispersed in rGO, which can be effectively separated by CNTs.


Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2337
Author(s):  
Yanying Yu ◽  
Jie Xu ◽  
Jianwei Zhang ◽  
Fan Li ◽  
Jiantao Fu ◽  
...  

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.


Author(s):  
Yonggang Liu ◽  
Haijing Li ◽  
Junfu Li ◽  
Xiaoshuang Ma ◽  
Zhiming Cui ◽  
...  

Two-dimensional (2D) rhenium disulfide (ReS2) has been attracting immense interests as highly promising hydrogen evolution reaction (HER) electrocatalyst recently. However, the HER catalytic active sites of ReS2 are still limited...


Nano Energy ◽  
2018 ◽  
Vol 53 ◽  
pp. 690-697 ◽  
Author(s):  
Huanyu Jin ◽  
Xin Liu ◽  
Yan Jiao ◽  
Anthony Vasileff ◽  
Yao Zheng ◽  
...  

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