A Cake-Style CoS2@MoS2/RGO Hybrid Catalyst for Efficient Hydrogen Evolution

被引：260

作者：

Guo, Yaxiao ^{[1
,2
]}

Gan, Linfeng ^{[1
]}

Shang, Changshuai ^{[1
,2
]}

Wang, Erkang ^{[1
]}

Wang, Jin ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, 5625 Renmin St, Changchun 130022, Jilin, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] SUNY Stony Brook, Dept Chem & Phys, Stony Brook, NY 11794 USA

来源：

ADVANCED FUNCTIONAL MATERIALS | 2017年 / 27卷 / 05期

基金：

中国国家自然科学基金;

关键词：

ACTIVE EDGE SITES; CARBON NANOFIBERS; MOS2; GRAPHENE; NANOSHEETS; PERFORMANCE; COCATALYSTS; CHEMISTRY; GRAPHITE; LITHIUM;

D O I：

10.1002/adfm.201602699

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A three-tiered cake-style composite is elaborately established, with the characteristic of a double-deck of MoS2 nanosheets and reduction of graphene oxide (RGO) sheets dotted with CoS2 nanoparticles (CoS2@MoS2/RGO). Because of the prominent synergistic effect of graphene acting as conductive support, MoS2 and CoS2 providing abundant catalytically active sites, and the cake-style structure promoting mechanical stability, the CoS2@MoS2/RGO exhibits a superior hydrogen evolution reaction activity with a small overpotential of 98 mV at cathodic current density of 10 mA cm(-2), and a small Tafel slope of 37.4 mV dec(-1), as well as excellent cycling stability. Density functional theory calculations reveal that the hydrogen adsorption free energy of CoS2@MoS2/RGO is close to zero.

引用

页数：7

共 52 条

[21] Charge Transfer in the MoS2/Carbon Nanotube Composite [J].

Koroteev, V. O. ;

Bulusheva, L. G. ;

Asanov, I. P. ;

Shlyakhova, E. V. ;

Vyalikh, D. V. ;

Okotrub, A. V. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (43) :21199-21204

[22] A high-porosity carbon molybdenum sulphide composite with enhanced electrochemical hydrogen evolution and stability [J].

Laursen, Anders B. ;

Vesborg, Peter C. K. ;

Chorkendorff, Ib .

CHEMICAL COMMUNICATIONS, 2013, 49 (43) :4965-4967

[23] Anomalous Lattice Vibrations of Single- and Few-Layer MoS2 [J].

Lee, Changgu ;

Yan, Hugen ;

Brus, Louis E. ;

Heinz, Tony F. ;

Hone, James ;

Ryu, Sunmin .

ACS NANO, 2010, 4 (05) :2695-2700

[24]

Li H, 2016, NAT MATER, V15, P48, DOI [10.1038/NMAT4465, 10.1038/nmat4465]

[25] MoS2 Nanoparticles Grown on Graphene: An Advanced Catalyst for the Hydrogen Evolution Reaction [J].

Li, Yanguang ;

Wang, Hailiang ;

Xie, Liming ;

Liang, Yongye ;

Hong, Guosong ;

Dai, Hongjie .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (19) :7296-7299

[26] Enhanced Hydrogen Evolution Catalysis from Chemically Exfoliated Metallic MoS2 Nanosheets [J].

Lukowski, Mark A. ;

Daniel, Andrew S. ;

Meng, Fei ;

Forticaux, Audrey ;

Li, Linsen ;

Jin, Song .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (28) :10274-10277

[27] Highly Effective Visible-Light-Induced H2 Generation by Single-Layer 1T-MoS2 and a Nanocomposite of Few-Layer 2H-MoS2 with Heavily Nitrogenated Graphene [J].

Maitra, Urmimala ;

Gupta, Uttam ;

De, Mrinmoy ;

Datta, Ranjan ;

Govindaraj, A. ;

Rao, C. N. R. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2013, 52 (49) :13057-13061

[28]

Mallouk TE, 2013, NAT CHEM, V5, P362, DOI 10.1038/nchem.1634

[29] Amorphous molybdenum sulfide films as catalysts for electrochemical hydrogen production in water [J].

Merki, Daniel ;

Fierro, Stephane ;

Vrubel, Heron ;

Hu, Xile .

CHEMICAL SCIENCE, 2011, 2 (07) :1262-1267

[30]

Milman V, 2000, INT J QUANTUM CHEM, V77, P895, DOI 10.1002/(SICI)1097-461X(2000)77:5<895::AID-QUA10>3.0.CO

← 1 2 3 4 5 6 →