Temperature-dependent Crystallization of MoS2 Nanoflakes on Graphene Nanosheets for Electrocatalysis

被引：32

作者：

Guo, Xiaoru ^{[1
]}

Hou, Yang ^{[1
]}

Ren, Ren ^{[1
]}

Chen, Junhong ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Mech Engn, 3200 North Cramer St, Milwaukee, WI 53211 USA

来源：

NANOSCALE RESEARCH LETTERS | 2017年 / 12卷

关键词：

Crystallization; MoS2/graphene hybrids; Electrocatalysis; Hydrogen evolution; Temperature-dependence; HYDROGEN EVOLUTION REACTION; MOLYBDENUM-DISULFIDE; ADVANCED CATALYST; HIGHLY EFFICIENT; PHASE-TRANSITION; ACTIVE CATALYST; OXIDE; EXFOLIATION; GRAPHITE; HYBRID;

D O I：

10.1186/s11671-017-2248-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This work primarily studies the crystallization condition of molybdenum disulfide (MoS2) in MoS2/graphene hybrids by a temperature-varying hydrothermal method from 150 to 240 degrees C. Flower-like MoS2 nanoflakes were successfully grown on graphene nanosheets and characterized to understand the temperature-dependent crystallization process and the electrochemical performance. The highest electrocatalytic efficiency for both the dye-sensitized solar cell and the hydrogen evolution reaction was obtained by preparing the hybrid at 180 degrees C, which benefits from balanced high reactivity and high conductivity. This research leads to a better understanding of temperature dependence of MoS2 crystallization and offers guidelines for better catalytic material design.

引用

页数：9

共 51 条

[21] A 3D hybrid of layered MoS2/nitrogen-doped graphene nanosheet aerogels: an effective catalyst for hydrogen evolution in microbial electrolysis cells [J].

Hou, Yang ;

Zhang, Bo ;

Wen, Zhenhai ;

Cui, Shumao ;

Guo, Xiaoru ;

He, Zhen ;

Chen, Junhong .

JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (34) :13795-13800

[22] Constructing 2D Porous Graphitic C3N4 Nanosheets/Nitrogen-Doped Graphene/Layered MoS2 Ternary Nanojunction with Enhanced Photoelectrochemical Activity [J].

Hou, Yang ;

Wen, Zhenhai ;

Cui, Shumao ;

Guo, Xiaoru ;

Chen, Junhong .

ADVANCED MATERIALS, 2013, 25 (43) :6291-6297

[23] First-principles study of two-dimensional van der Waals heterojunctions [J].

Hu, Wei ;

Yang, Jinlong .

COMPUTATIONAL MATERIALS SCIENCE, 2016, 112 :518-526

[24] Fabrication of thin film dye sensitized solar cells with solar to electric power conversion efficiency over 10% [J].

Ito, Seigo ;

Murakami, Takurou N. ;

Comte, Pascal ;

Liska, Paul ;

Graetzel, Carole ;

Nazeeruddin, Mohammad K. ;

Graetzel, Michael .

THIN SOLID FILMS, 2008, 516 (14) :4613-4619

[25] Preparation of MoS2-reduced graphene oxide (rGO) hybrid paper for catalytic applications by simple exfoliation-costacking [J].

Jeffery, A. Anto ;

Rao, Shilpa R. ;

Rajamathi, Michael .

CARBON, 2017, 112 :8-16

[26] 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

[27] Molybdenum Disulfide/Reduced Graphene Oxide-Carbon Nanotube Hybrids as Efficient Catalytic Materials in Dye-Sensitized Solar Cells [J].

Lin, Jeng-Yu ;

Su, An-Lin ;

Chang, Chin-Yu ;

Hung, Kuan-Chung ;

Lin, Tsung-Wu .

CHEMELECTROCHEM, 2015, 2 (05) :720-725

[28] Three-band tight-binding model for monolayers of group-VIB transition metal dichalcogenides [J].

Liu, Gui-Bin ;

Shan, Wen-Yu ;

Yao, Yugui ;

Yao, Wang ;

Xiao, Di .

PHYSICAL REVIEW B, 2013, 88 (08)

[29] 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

[30] Perpendicularly Oriented MoSe2/Graphene Nanosheets as Advanced Electrocatalysts for Hydrogen Evolution [J].

Mao, Shun ;

Wen, Zhenhai ;

Ci, Suqin ;

Guo, Xiaoru ;

Ostrikov, Kostya ;

Chen, Junhong .

SMALL, 2015, 11 (04) :414-419

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