Surface selectivity of Ni3S2 toward hydrogen evolution reaction: a first-principles study

2020 ◽  
Vol 22 (44) ◽  
pp. 25685-25694
Author(s):  
Bo Zhang ◽  
Xiuli Fu ◽  
Li Song ◽  
Xiaojun Wu

Exploring materials with high catalytic performance toward hydrogen evolution reaction (HER) is of importance for the development of clean hydrogen energy, and their surface structure is essential for this function.

2021 ◽  
Vol 126 ◽  
pp. 114485
Author(s):  
Xiaoxiong Lai ◽  
Yunzhen Zhang ◽  
Yanan Zheng ◽  
Xinshuang Xiang ◽  
Han Ye ◽  
...  

RSC Advances ◽  
2020 ◽  
Vol 10 (63) ◽  
pp. 38484-38489
Author(s):  
Huimin Hu ◽  
Jin-Ho Choi

Owing to the synergetic effects of different two-dimensional (2D) materials, 2D heterostructures have recently attracted much attention in the field of catalysis.


2018 ◽  
Vol 20 (44) ◽  
pp. 27970-27974 ◽  
Author(s):  
Song Yu ◽  
Yong-Chao Rao ◽  
Hong-Hui Wu ◽  
Xiang-Mei Duan

Based on first-principles calculations, we study the hydrogen evolution reaction (HER) on metal-free C2N and make efforts to improve its catalytic performance.


2020 ◽  
Vol 128 (4) ◽  
pp. 045307
Author(s):  
Yuzhuo Sun ◽  
Chenjia Li ◽  
Jinduo Zhang ◽  
Luyao Feng ◽  
Yongze Zhang ◽  
...  

2021 ◽  
Author(s):  
Chenguang Duan ◽  
Huating Liu ◽  
Zongyu Huang ◽  
Hui Qiao ◽  
Yang Zhou ◽  
...  

Abstract Electrocatalytic hydrogen evolution is an exercisable way to achieve large-scale application of hydrogen energy. It is of great significance to develop an effect, stable and cost-effective electrocatalyst. Here, we applied the two-dimensional (2D) bismuth (Bi) to the electrocatalytic hydrogen evolution, and proposed the strategies to enhance the catalytic performance of the catalyst. The exfoliated Bi nanosheets via sonication assisted liquid-phase exfoliation display higher electrocatalytic activity (overpotential of -958 mV vs RHE at 10 mA cm− 2) compared to the bulk counterpart. Theoretical calculations about Gibbs free energy from the hydrogen adsorption for 1 layer, 2 layers and 5 layers Bi also manifest the decrease of thickness is favorable for hydrogen evolution reaction (HER). To further evaluate the electrocatalytic performance of Bi nanosheets, the typical parameters measured in different H+ concentration (C[H+]) are carried out. The improved catalytic activity obtained in 0.5 M H2SO4 is attributed to enhancing the hydrogen adsorption and accelerating the charge transport on the surface of catalyst. Moreover, the durability of Bi nanosheets electrode has been texted, where the current is not evident fluctuation during the 40000 s electrolysis measurement indicating its excellent stability. The present work expands the application of Bi in the catalysis and provides the simple strategies to improve its hydrogen evolution performance.


2018 ◽  
Vol 67 (21) ◽  
pp. 217102
Author(s):  
Xu Zi-Wei ◽  
Shi Chang-Shuai ◽  
Zhao Guang-Hui ◽  
Wang Ming-Yuan ◽  
Liu Gui-Wu ◽  
...  

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