Nickel sulfides supported by carbon spheres as efficient catalysts for hydrogen evolution reaction

被引:23
|
作者
Gao, Tong [1 ]
Nie, Ming [1 ,2 ]
Luo, Jin [3 ]
Huang, Zhi [1 ]
Sun, Hai [1 ]
Guo, Peitao [1 ]
Xue, Zhenhong [1 ]
Liao, Jianming [1 ]
Li, Qing [1 ]
Teng, Liumei [4 ]
机构
[1] Southwest Univ, Sch Mat & Energy, Minist Educ, Key Lab Luminescence Anal & Mol Sensing, Chongqing 400715, Peoples R China
[2] Southwest Univ, Sch Mat & Energy, Chongqing Key Lab Adv Mat & Technol Clean Energie, Chongqing 400715, Peoples R China
[3] SUNY Binghamton, Dept Chem, Binghamton, NY 13902 USA
[4] Chongqing Univ Arts & Sci, Chongqing Univ Key Lab Micro Nano Mat Engn & Tech, Chongqing 402160, Peoples R China
关键词
Hydrothermal method; Hydrogen evolution reaction; Carbon Spheres; Ni3S2 and NiS; ELECTROCATALYSTS; FOAM; NI;
D O I
10.1016/j.elecom.2021.107076
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Ni3S2 and NiS supported on carbon spheres are successfully synthesized by a facile hydrothermal method. And then a series of physical characterizations included XRD (X-ray diffraction), EDS (energy dispersive spectroscopy), FESEM (field emission scanning electron microscopy) and XPS (X-ray photo-electron spectroscopy) were used to analyze the samples. XRD was used to confirm that Ni3S2 and NiS were successfully fabricated. FESEM indicated that Ni3S2 and NiS disperse well on carbon spheres. Electrochemical tests showed that nickel sulfides supported by carbon spheres exhibited excellent hydrogen evolution performance. The excellent catalytic activity is attributed to the synergistic effect of carbon spheres and transition metal sulfides, of which the carbon spheres act to enhance the electrical conductivity and the dispersion of Ni3S2 and NiS, thus providing more active sites for the hydrogen evolution reaction.
引用
收藏
页数:6
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