Molybdenum Disulfide-Black Phosphorus Hybrid Nanosheets as a Superior Catalyst for Electrochemical Hydrogen Evolution

被引：217

作者：

He, Rong ^{[1
]}

Hua, Jian ^{[1
]}

Zhang, Anqi ^{[1
]}

Wang, Chuanhao ^{[1
]}

Peng, Jiayu ^{[1
]}

Chen, Weijia ^{[1
]}

Zeng, Jie ^{[1
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Key Lab Strongly Coupled Quantum Matter Phys, Chinese Acad Sci,Dept Chem Phys, Hefei 230026, Anhui, Peoples R China

来源：

NANO LETTERS | 2017年 / 17卷 / 07期

关键词：

Hydrogen evolution reaction; black phosphorus; molybdenum disulfide; electron transfer; ACTIVE EDGE SITES; MOS2; ELECTROCATALYSTS; NANOMATERIALS; OXYGEN; PHASE; OXIDE; WATER; CONDUCTIVITY; COMPOSITES;

D O I：

10.1021/acs.nanolett.7b01334

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Engineering electronic properties is a promising way to design nonprecious-metal or earth-abundant catalysts toward hydrogen evolution reaction (HER). Herein, we deposited catalytically active MoS2 flakes onto black phosphorus (BP) nanosheets to construct the MoS2-BP interfaces. In this case, electrons flew from BP to MoS2 in MoS2-BP nanosheets because of the higher Fermi level of BP than that of MoS2. MoS2-BP nanosheets exhibited remarkable HER performance with an overpotential of 85 mV at 10 mA cm(-2). Due to the electron donation from BP to MoS2, the exchange current density of MoS2-BP reached 0.66 mA cm 2, which was 22 times higher than that of MoS2. In addition, both the consecutive cyclic voltammetry and potentiostatic tests revealed the outstanding electrocatalytic stability of MoS2-BP nanosheets. Our finding not only provides a superior HER catalyst, but also presents a straightforward strategy to design hybrid electrocatalysts.

引用

页码：4311 / 4316

页数：6

共 46 条

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