Microflower-like Co9S8@MoS2 heterostructure as an efficient bifunctional catalyst for overall water splitting
文献类型： 外文期刊
作者： Pang, Chaohai 1 ; Ma, Xionghui 1 ; Wu, Yuwei 1 ; Li, Shuhuai 1 ; Xu, Zhi 1 ; Wang, Mingyue 1 ; Zhu, Xiaojing 3 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Key Lab Qual & Safety Contml Subtrop Fruit & Vege, Hainan Prov Key Lab Qual & Safety Trop Fruits & V, Anal & Test Ctr,Minist Agr & Rural Affairs, Haikou 571101, Hainan, Peoples R China
2.Key Lab Trop Fruits & Vegetables Qual & Safety St, Haikou 570311, Hainan, Peoples R China
3.Chem & Chem Engn Guangdong Lab, Res Ctr Adv Chem Equipment, Shantou 515041, Peoples R China
期刊名称：RSC ADVANCES （ 影响因子：4.036； 五年影响因子：3.748 ）
ISSN：
年卷期： 2022 年 12 卷 35 期
页码：
收录情况： SCI
摘要： The development of a distinguished and high-performance catalyst for H-2 and O-2 generation is a rational strategy for producing hydrogen fuel via electrochemical water splitting. Herein, a flower-like Co9S8@MoS2 heterostructure with effective bifunctional activity was achieved using a one-pot approach via the hydrothermal treatment of metal-coordinated species followed by pyrolysis under an N-2 atmosphere. The heterostructures exhibited a 3D interconnected network with a large electrochemical active surface area and a junctional complex with hydrogen evolution reaction (HER) catalytic activity of MoS2 and oxygen evolution reaction (OER) catalytic activity of Co9S8, exhibiting low overpotentials of 295 and 103 mV for OER and HER at 10 mA cm(-2) current density, respectively. Additionally, the catalyst-assembled electrolyser provided favourable catalytic activity and strong durability for overall water splitting in 1 M KOH electrolyte. The results of the study highlight the importance of structural engineering for the design and preparation of cost-effective and efficient bifunctional electrocatalysts.
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