Two-dimensional Pt2P3 monolayer: a promising bifunctional electrocatalyst with different active sites for hydrogen evolution and CO2 reduction

Author(s):  
Yuting Sun ◽  
Shuang Wang ◽  
Dongxu Jiao ◽  
Fengyu Li ◽  
Siyao Qiu ◽  
...  
2020 ◽  
Vol 44 (13) ◽  
pp. 10551-10561
Author(s):  
Hitanshu Kumar ◽  
Ke Wang ◽  
Fei Tang ◽  
Xierong Zeng ◽  
Lin Gan ◽  
...  

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...


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.


2021 ◽  
Vol 14 (10) ◽  
pp. 5339-5346
Author(s):  
Huanhuan Liu ◽  
Fu Zhang ◽  
Haifei Wang ◽  
Jierui Xue ◽  
Yiming Guo ◽  
...  

The unsaturated coordinated cobalt centers of Vo-CCO NWs as active sites were manufactured by the self-photoetching approach, which can preferably adsorb and activate CO2 molecules, effectively inhibiting hydrogen evolution.


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

Nanoscale ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 4283-4294 ◽  
Author(s):  
Junfeng Xie ◽  
Xueying Yang ◽  
Yi Xie

Defect engineering could provide rich active sites, optimized electronic structure and intimate anchoring of active species, displaying multiple roles in promoting the electrocatalytic hydrogen evolution reaction.


2019 ◽  
Vol 7 (2) ◽  
pp. 430-454 ◽  
Author(s):  
Amirhossein Hasani ◽  
Mahider Tekalgne ◽  
Quyet Van Le ◽  
Ho Won Jang ◽  
Soo Young Kim

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


2018 ◽  
Vol 6 (41) ◽  
pp. 20005-20014 ◽  
Author(s):  
Seung Hyo Noh ◽  
Jeemin Hwang ◽  
Joonhee Kang ◽  
Min Ho Seo ◽  
Daehyeon Choi ◽  
...  

This study establishes big data for the catalytic properties of two-dimensional metal-dichalcogenides (2D-TMDs) toward the hydrogen evolution reaction (HER). In addition to conventionally known active sites of edges, it proposes that terrace sites (or the basal plane) can be substantially activated for the HER.


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