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Facile Morphology‐Tunable Preparation of CuS@MoS 2 Heterostructures Based on Template Solvothermal Method
Author(s) -
Liu Fangge,
Xu Ruizhi,
Hong Liu,
Yang Zehui,
Li Yunxing,
Wang Chuanxi,
Jia Hongbing,
Yang Cheng
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201904687
Subject(s) - nanorod , materials science , catalysis , nanocomposite , morphology (biology) , chemical engineering , electrochemistry , composite number , template , nanotechnology , heterojunction , solvothermal synthesis , nanoparticle , electrode , composite material , chemistry , optoelectronics , organic chemistry , biology , engineering , genetics
Abstract Morphology controlling has been considered as an important factor for constructing electrochemical catalysts with excellent catalytic activity as confirmed in recent studies. Herein we report a facile solvothermal method in synthesizing CuS@MoS 2 nanocomposite with potentially high catalytic activity, of which different morphologies including nanorod (NR), hierarchical hollow nanosphere (HHNS) and solid nanosphere (SNS) can be simply tuned by solvent polarity and template‐precursor ratio. The morphological variation of these composites is believed as a result of the competition between overall free energy and surface free energy. The alternation in composite morphology finally causes a difference of electrochemical CO 2 reduction (CO 2 RR) activities among NR, HNNS and SNS, in which a low onset potential (‐0.35 V vs. RHE) and excellent cycling stability can be achieved. Our results demonstrate a large potentiality of CuS@MoS 2 nanohybrid to be applied in CO 2 RR once its morphology can be controlled.

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