Enhanced photoresponse and fast charge transfer: three-dimensional macroporous g-C3N4/GO-TiO2 nanostructure for hydrogen evolution

2020 ◽  
Vol 8 (37) ◽  
pp. 19533-19543 ◽  
Author(s):  
Wei Li ◽  
Qiong Ma ◽  
Xiao Wang ◽  
Xiao-shan Chu ◽  
Fei Wang ◽  
...  

Enhancing the adhesion stability of the anatase TiO2 cocatalyst on the three-dimensional macroporous g-C3N4/GO skeleton for highly efficient hydrogen evolution.


Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 929 ◽  
Author(s):  
Sajjad Hussain ◽  
Kamran Akbar ◽  
Dhanasekaran Vikraman ◽  
Rana Afzal ◽  
Wooseok Song ◽  
...  

To find an effective alternative to scarce, high-cost noble platinum (Pt) electrocatalyst for hydrogen evolution reaction (HER), researchers are pursuing inexpensive and highly efficient materials as an electrocatalyst for large scale practical application. Layered transition metal dichalcogenides (TMDCs) are promising candidates for durable HER catalysts due to their cost-effective, highly active edges and Earth-abundant elements to replace Pt electrocatalysts. Herein, we design an active, stable earth-abundant TMDCs based catalyst, WS(1−x)Sex nanoparticles-decorated onto a 3D porous graphene/Ni foam. The WS(1−x)Sex/graphene/NF catalyst exhibits fast hydrogen evolution kinetics with a moderate overpotential of ~−93 mV to drive a current density of 10 mA cm−2, a small Tafel slope of ~51 mV dec−1, and a long cycling lifespan more than 20 h in 0.5 M sulfuric acid, which is much better than WS2/NF and WS2/graphene/NF catalysts. Our outcomes enabled a way to utilize the TMDCs decorated graphene and precious-metal-free electrocatalyst as mechanically robust and electrically conductive catalyst materials.





2015 ◽  
Vol 3 (5) ◽  
pp. 1941-1946 ◽  
Author(s):  
Ali Han ◽  
Song Jin ◽  
Huanlin Chen ◽  
Hengxing Ji ◽  
Zijun Sun ◽  
...  

A highly efficient cathode containing 3D Ni2P/graphene layers/nickel foam has been successfully constructed for electrocatalytic H2 evolution reaction (HER).



2019 ◽  
Vol 43 (16) ◽  
pp. 6411-6421 ◽  
Author(s):  
Lijun Zhang ◽  
Guorong Wang ◽  
Zhiliang Jin

A rationally designed/constructed catalyst with α-Ni(OH)2 over Zn–Cd–S shows enhanced photocatalytic hydrogen evolution attributed to the interface providing a fast charge transfer channel and reducing the photo-generated carrier recombination probability.



Nano Energy ◽  
2017 ◽  
Vol 40 ◽  
pp. 308-316 ◽  
Author(s):  
Zhen-Feng Huang ◽  
Jiajia Song ◽  
Xin Wang ◽  
Lun Pan ◽  
Ke Li ◽  
...  




RSC Advances ◽  
2016 ◽  
Vol 6 (103) ◽  
pp. 101198-101207 ◽  
Author(s):  
Shiping Xu ◽  
Yuan Gao ◽  
Xiang Sun ◽  
Min Yue ◽  
Qinyan Yue ◽  
...  

The facile one-pot synthesized carbon incorporated 3D hierarchical TiO2 nanostructures simultaneously possessed superior adsorption capability and photocatalytic activity towards pollutants.



2020 ◽  
Vol 59 (40) ◽  
pp. 17712-17718 ◽  
Author(s):  
Fei Lu ◽  
Ding Yi ◽  
Shoujie Liu ◽  
Fei Zhan ◽  
Bo Zhou ◽  
...  


Nano Letters ◽  
2016 ◽  
Vol 16 (12) ◽  
pp. 7604-7609 ◽  
Author(s):  
Haiqing Zhou ◽  
Fang Yu ◽  
Jingying Sun ◽  
Hangtian Zhu ◽  
Ishwar Kumar Mishra ◽  
...  


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