Strong interfacial coupling of MoS2/g-C3N4 van de Waals solids for highly active water reduction

被引：100

作者：

Fu, Wei ^{[1
]}

He, Haiyong ^{[1
]}

Zhang, Zhuhua ^{[2
,3
,4
]}

Wu, Chunyang ^{[5
,6
]}

Wang, Xuewen ^{[1
]}

Wang, Hong ^{[1
]}

Zeng, Qingsheng ^{[1
]}

Sun, Linfeng ^{[7
]}

Wang, Xingli ^{[8
]}

Zhou, Jiadong ^{[1
]}

Fu, Qundong ^{[1
]}

Yu, Peng ^{[1
]}

Shen, Zexiang ^{[7
]}

Jin, Chuanhong ^{[5
,6
]}

Yakobson, Boris I. ^{[2
]}

Liu, Zheng ^{[1
,8
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Ctr Programmable Mat, Singapore 639798, Singapore

[2] Rice Univ, Dept Mat Sci & Nanoengn, Houston, TX 77005 USA

[3] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Peoples R China

[4] Nanjing Univ Aeronaut & Astronaut, Inst Nanosci, Nanjing 210016, Peoples R China

[5] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

[6] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China

[7] Nanyang Technol Univ, Sch Phys & Math Sci, 21 Nanyang Link, Singapore 637371, Singapore

[8] Nanyang Technol Univ, NOVITAS, Nanoelect Ctr Excellence, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

NANO ENERGY | 2016年 / 27卷

基金：

新加坡国家研究基金会;

关键词：

Van der waals solid; Interfacial engineering; 2D materials; Electron transfer; Electrocatalysis; HYDROGEN-EVOLUTION; ENERGY-CONVERSION; OXYGEN REDUCTION; IN-SITU; MOS2; GRAPHENE; ELECTROCATALYST; PERFORMANCE; PHOSPHIDE; FUNCTIONALIZATION;

D O I：

10.1016/j.nanoen.2016.06.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The facile and sustainable production of hydrogen through water reduction requires high performance catalyst consisting of earth abundant elements for the hydrogen evolution reaction (HER). Here we report the synthesis of ultrathin molybdenum disulfide/g-carbon nitride (MoS2/g-C3N4) vdW layers via an in situ interfacial engineering method. Such MoS2/g-C3N4 vdW layers show outstanding HER activity with comparable potential and Tafel slope to commercial Pt catalysts. Our experimental data and density functional theory (DFT) based calculations revealed that the unpreceded electrocatalytic performances originate from the strong interfacial coupling of vdW layers through out-of-plane Mo-N bonding, which therefore enhances hydrogen adsorption/reduction kinetics for HER. These findings will shed light on the programmable catalysts for low cost and highly active water reduction. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：44 / 50

页数：7

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