MoS2-2xSe2x Nanosheets Grown on Hollow Carbon Spheres for Enhanced Electrochemical Activity

被引：15

作者：

Luan, Xinxin ^{[1
]}

Zhu, Kaili ^{[1
]}

Zhang, Xiao ^{[2
,3
]}

Yang, Ping ^{[1
]}

机构：

[1] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China

[2] Curtin Univ, Fuels & Energy Technol Inst, Perth, WA 6845, Australia

[3] Curtin Univ, Western Australia Sch Mines Minerals Energy & Che, Perth, WA 6845, Australia

来源：

LANGMUIR | 2021年 / 37卷 / 27期

基金：

中国国家自然科学基金;

关键词：

EFFICIENT HYDROGEN EVOLUTION; DOPED MOS2; EDGE SITES; WATER; ELECTROCATALYSTS; MOS2(1-X)SE2X; REDUCTION; GRAPHENE; CATALYST; ARRAYS;

D O I：

10.1021/acs.langmuir.1c01122

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electrochemical catalysts with high conductivity and low reaction potential are respected. In this paper, hollow carbon spheres (HCSs) were homogeneously coated with Se-doped MoS2(MoS2-2xSe2x) nanosheets by hydrothermal synthesis. The HCSs reduced the agglomeration of MoS2-2xSe2x nanosheets and improved their conductivity. Compared with the MoS2 modified samples, Se doping increased the interlayer spacing which provided more active catalytic sites and improved the charge transfer. Thus, MoS2-2xSe2x-decorated samples revealed enhanced electrocatalytic activity. The composition of MoS2-2xSe2x-nanosheets was adjusted by changing the ratios of sulfur and selenium precursors. In the case of a Se/S molar ratio of 0.1, the composite of HCS decorated with MoS2-2xSe2x nanosheets (C@MoS2-2xSe2x) revealed the lowest overpotential and the smallest Tafel slope.

引用

页码：8314 / 8322

页数：9

共 57 条

[1] Ni- and Co-Substituted Metallic MoS2for the Alkaline Hydrogen Evolution Reaction [J].

Attanayake, Nuwan H. ;

Dheer, Lakshay ;

Thenuwara, Akila C. ;

Abeyweera, Sasitha C. ;

Collins, Coby ;

Waghmare, Umesh V. ;

Strongin, Daniel R. .

CHEMELECTROCHEM, 2020, 7 (17) :3606-3615

[2] Photocatalytic H2 evolution on CdS modified with partially crystallized MoS2 under visible light irradiation [J].

Bo, Tingting ;

Wang, Yongzhao ;

Wang, Juan ;

Zhao, Zhiliang ;

Zhang, Jing ;

Zheng, Kang ;

Lin, Tsungwu ;

Zhang, Bingsen ;

Shao, Lidong .

CHEMICAL PHYSICS LETTERS, 2020, 746

[3] Doping-Assisted Phase Changing Effect on MoS2 Towards Hydrogen Evolution Reaction in Acidic and Alkaline pH [J].

Bolar, Saikat ;

Shit, Subhasis ;

Murmu, Naresh C. ;

Kuila, Tapas .

CHEMELECTROCHEM, 2020, 7 (01) :336-346

[4] Monolayer MoSe2 Grown by Chemical Vapor Deposition for Fast Photodetection [J].

Chang, Yung-Huang ;

Zhang, Wenjing ;

Zhu, Yihan ;

Han, Yu ;

Pu, Jiang ;

Chang, Jan-Kai ;

Hsu, Wei-Ting ;

Huang, Jing-Kai ;

Hsu, Chang-Lung ;

Chiu, Ming-Hui ;

Takenobu, Taishi ;

Li, Henan ;

Wu, Chih-I ;

Chang, Wen-Hao ;

Wee, Andrew Thye Shen ;

Li, Lain-Jong .

ACS NANO, 2014, 8 (08) :8582-8590

[5] Mo2C@NC@MoSx porous nanospheres with sandwich shell based on MoO42--polymer precursor for efficient hydrogen evolution in both acidic and alkaline media [J].

Chi, Jing-Qi ;

Shang, Xiao ;

Lu, Shan-Shan ;

Dong, Bin ;

Liu, Zi-Zhang ;

Yan, Kai-Li ;

Gao, Wen-Kun ;

Chai, Yong-Ming ;

Liu, Chen-Guang .

CARBON, 2017, 124 :555-564

[6] Fabrication of MoS2-Decorated Nickel-Cobalt Bimetal Phosphide Nanocubes as Efficient Electrocatalysts for Hydrogen Evolution [J].

Feng, Jianhui ;

Zhou, Hu ;

Chen, Danyang ;

Shao, Jinxiao ;

Diao, Guowang ;

Yuan, Aihua .

CHEMISTRYSELECT, 2019, 4 (40) :11872-11878

[7] 3D 1T-MoS2/CoS2Heterostructure via Interface Engineering for Ultrafast Hydrogen Evolution Reaction [J].

Feng, Yangyang ;

Zhang, Ting ;

Zhang, Jiahui ;

Fan, Hao ;

He, Cheng ;

Song, Jiangxuan .

SMALL, 2020, 16 (33)

[8] Ultrathin MoS2(1-x)Se2x Alloy Nanoflakes For Electrocatalytic Hydrogen Evolution Reaction [J].

Gong, Qiufang ;

Cheng, Liang ;

Liu, Changhai ;

Zhang, Mei ;

Feng, Qingliang ;

Ye, Hualin ;

Zeng, Min ;

Xie, Liming ;

Liu, Zhuang ;

Li, Yanguang .

ACS CATALYSIS, 2015, 5 (04) :2213-2219

[9] Biornimetic hydrogen evolution:: MoS2 nanoparticles as catalyst for hydrogen evolution [J].

Hinnemann, B ;

Moses, PG ;

Bonde, J ;

Jorgensen, KP ;

Nielsen, JH ;

Horch, S ;

Chorkendorff, I ;

Norskov, JK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (15) :5308-5309

[10] Activating Basal Planes and S-Terminated Edges of MoS2 toward More Efficient Hydrogen Evolution [J].

Huang, Xiaolei ;

Leng, Mei ;

Xiao, Wen ;

Li, Meng ;

Ding, Jun ;

Tan, Teck Leong ;

Lee, Wee Siang Vincent ;

Xue, Junmin .

ADVANCED FUNCTIONAL MATERIALS, 2017, 27 (06)

← 1 2 3 4 5 6 →