Issue 32, 2020
From the journal:

RSC Advances

Enhanced electrochemical performance of MoS2/graphene nanosheet nanocomposites†

Jin-Hyeok Choi,a   Min-Cheol Kim,a   Sang-Hyun Moon,a   Hyeona Kim,a   Yo-Seob Kima  and  Kyung-Won Park ORCID logo *a  

* Corresponding authors

a Department of Chemical Engineering, Soongsil University, Seoul 06978, Republic of Korea
E-mail: kwpark@ssu.ac.kr
Fax: +82-2-812-5378
Tel: +82-2-820-0613

Abstract

Molybdenum disulfide (MoS2) is attractive as an anode material for next-generation batteries, because of its layered structure being favorable for the insertion/deinsertion of Li+ ions, and its fairly high theoretical capacity. However, since the MoS2 anode material has exhibited disadvantages, such as low electrical conductivity and poor cycling stability, to improve the electrochemical performance of MoS2 in this study, a nanocomposite structure consisting of MoS2 and GNS (MoS2/GNS) as an anode for LIBs was prepared, by controlling the weight ratios of MoS2/GNS. The X-ray diffraction patterns and electron microscopic analysis showed that the nanocomposite electrode structure consisted of well-formed MoS2 nanoparticles and GNS. Compared to MoS2-only, the MoS2/GNS composites exhibited high retention and improved capacity at high current densities. In particular, among these nanocomposite samples, MoS2/GNS(8 : 2) with an appropriate portion of GNS exhibited the best LIB performance, due to the lowest interfacial resistance and highest Li-ion diffusivity.

Graphical abstract: Enhanced electrochemical performance of MoS2/graphene nanosheet nanocomposites

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Article information

DOI
https://doi.org/10.1039/D0RA03539D
Article type
Paper
Submitted
20 Apr 2020
Accepted
26 Apr 2020
First published
19 May 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 19077-19082

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Enhanced electrochemical performance of MoS2/graphene nanosheet nanocomposites

J. Choi, M. Kim, S. Moon, H. Kim, Y. Kim and K. Park, RSC Adv., 2020, 10, 19077 DOI: 10.1039/D0RA03539D

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