Ultrathin MoS2 nanosheets in situ grown on rich defective Ni0.96S as heterojunction bifunctional electrocatalysts for alkaline water electrolysis

被引：55
作者：
Liu, Shanhu [1 ]
Li, Bingyue [1 ]
Mohite, Santosh, V [1 ]
Devaraji, Perumal [1 ]
Mao, Liqun [1 ]
Xing, Ruimin [1 ]
机构：
[1] Henan Univ, Coll Chem & Chem Engn, Henan Key Lab Polyoxometalate Chem, Henan Joint Int Res Lab Environm Pollut Control M, Kaifeng 475004, Henan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2020年 / 45卷 / 55期
基金：
中国国家自然科学基金;
关键词：
Heterojunction; Hybrid; Bifunctional electrocatalyst; Alkaline water electrolysis; Defective Ni0.96S; MoS2; nanosheets; HYDROGEN EVOLUTION; THIN-FILM; EFFICIENT; GRAPHENE; NANOPARTICLES; NANOFLAKES; CATALYSIS; ARRAY; FOAM;
D O I：
10.1016/j.ijhydene.2020.08.034
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：
Developing earth-abundant and highly active bifunctional electrocatalysts are critical to advance sustainable hydrogen production via alkaline water electrolysis but still challenging. Herein, heterojunction hybrid of ultrathin molybdenum disulfide (MoS2) nano-sheets and non-stoichiometric nickel sulfide (Ni0.96S) is in situ prepared via a facile one-step hydrothermal strategy, followed by annealing at 400 degrees C for 1 h. Microstructural analysis shows that the hybrid is composed of intimate heterojunction interfaces between Ni0.96S and MoS2 with exposed active edges provided by ultrathin MoS2 nanosheets and rich defects provided by non-stoichiometric Ni0.96S nanocrystals. As expected, it is evaluated as bifunctional electrocatalysts to produce both hydrogen and oxygen via water electrolysis with a hydrogen evolution reaction (HER) overpotential of 104 mV at 10 mA cm(-2) and an oxygen evolution reaction (OER) overpotential of 266 mV at 20 mA cm(-2) under alkaline conditions, outperforming most current noble-metal-free electrocatalysts. This work provides a simple strategy toward the rational design of novel heterojunction electrocatalysts which would be a promising candidate for electrochemical overall water splitting. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：29929 / 29937
页数：9
相关论文
共 43 条
[21]   Ultrathin WS2 nanosheets vertically aligned on TiO2 nanobelts as efficient alkaline hydrogen evolution electrocatalyst [J].
Liu, Shanhu ;
Xu, Yinxi ;
Chanda, Debabrata ;
Tan, Lei ;
Xing, Ruimin ;
Li, Xiying ;
Mao, Liqun ;
Kazuya, Nakata ;
Fujishima, Akira .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2020, 45 (03) :1697-1705
[22]   Hierarchical ZnS@C@MoS2 core-shell nanostructures as efficient hydrogen evolution electrocatalyst for alkaline water electrolysis [J].
Liu, Shanhu ;
Li, Shengnan ;
Sekar, Karthi ;
Li, Rui ;
Zhu, Yuanyuan ;
Xing, Ruimin ;
Nakata, Kazuya ;
Fujishima, Akira .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2019, 44 (47) :25310-25318
[23]   One-step electrodeposition of Ni-Co-S nanosheets film as a bifunctional electrocatalyst for efficient water splitting [J].
Liu, Tingting ;
Sun, Xuping ;
Asiri, Abdullah M. ;
He, Yuquan .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2016, 41 (18) :7264-7269
[24]   Engineering Mesoporous NiO with Enriched Electrophilic Ni3+ and O- toward Efficient Oxygen Evolution [J].
Liu, Xiu ;
Zhai, Zhi-Yuan ;
Chen, Zhou ;
Zhang, Li-Zhong ;
Zhao, Xiu-Feng ;
Si, Feng-Zhan ;
Li, Jian-Hui .
CATALYSTS, 2018, 8 (08)
[25]   An Investigation of Thin-Film Ni-Fe Oxide Catalysts for the Electrochemical Evolution of Oxygen [J].
Louie, Mary W. ;
Bell, Alexis T. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (33) :12329-12337
[26]   Spatial Compartmentalization of Cobalt Phosphide in P-Doped Dual Carbon Shells for Efficient Alkaline Overall Water Splitting [J].
Mohite, Santosh V. ;
Xing, Ruimin ;
Li, Bingyue ;
Latthe, Sanjay S. ;
Zhao, Yong ;
Li, Xiying ;
Mao, Liqun ;
Liu, Shanhu .
INORGANIC CHEMISTRY, 2020, 59 (03) :1996-2004
[27]   Boosting the electrochemical performance of MoS2 nanospheres-N-doped-GQDs-rGO three-dimensional nanostructure for energy storage and conversion applications [J].
Sekar, Karthi ;
Raji, Govindan ;
Tong, Liangyu ;
Zhu, Yuanyuan ;
Liu, Shanhu ;
Xing, Ruimin .
APPLIED SURFACE SCIENCE, 2020, 504
[28]   Nanosheets assembled into nickel sulfide nanospheres with enriched Ni3+ active sites for efficient water-splitting and zinc-air batteries [J].
Shi, Xiangkai ;
Ling, Xiaofei ;
Li, Lanlan ;
Zhong, Cheng ;
Deng, Yida ;
Han, Xiaopeng ;
Hu, Wenbin .
JOURNAL OF MATERIALS CHEMISTRY A, 2019, 7 (41) :23787-23793
[29]   NiSe Nanowire Film Supported on Nickel Foam: An Efficient and Stable 3D Bifunctional Electrode for Full Water Splitting [J].
Tang, Chun ;
Cheng, Ningyan ;
Pu, Zonghua ;
Xing, Wei ;
Sun, Xuping .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2015, 54 (32) :9351-9355
[30]   A 3D free-standing thin film based on N, P-codoped hollow carbon fibers embedded with MoP quantum dots as high efficient oxygen electrode for Li-O2 batteries [J].
Wei, Minghui ;
Li, Bao ;
Jin, Chao ;
Ni, Yichen ;
Li, Cong ;
Pan, Xiaowei ;
Sun, Jiawen ;
Yang, Chenghao ;
Yang, Ruizhi .
ENERGY STORAGE MATERIALS, 2019, 17 :226-233
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