An Electrosynthesized 3D Porous Molybdenum Sulfide/Graphene Film with Enhanced Electrochemical Performance for Lithium Storage

Yu Ge; Caiyun Wang; Yong Zhao; Yong Liu; Yunfeng Chao; Tian Zheng; Gordon G Wallace

doi:10.1002/smll.201703096

An Electrosynthesized 3D Porous Molybdenum Sulfide/Graphene Film with Enhanced Electrochemical Performance for Lithium Storage

Small. 2018 Mar;14(9). doi: 10.1002/smll.201703096. Epub 2017 Dec 28.

Authors

Yu Ge¹, Caiyun Wang¹, Yong Zhao¹, Yong Liu², Yunfeng Chao¹, Tian Zheng¹, Gordon G Wallace¹

Affiliations

¹ ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, New South Wales, 2522, Australia.
² Lab of Nanoscale Biosensing and Bioimaging, Institute of Advanced Materials for Nano-Bio Applications, Wenzhou Medical University, Zhejiang, 325027, China.

PMID: 29282857
DOI: 10.1002/smll.201703096

Abstract

Molybdenum sulfide/graphene composites are promising anode materials for lithium-ion batteries (LIBs). In this work, MoS_x /graphene composite film with an ideal 3D porous structure is developed via a facile and straightforward electrochemical route. The MoS_x nanoparticles are uniformly anchored on the graphene nanosheets that are randomly arranged, resulting in MoS_x /graphene composites with well-developed porous structure. Benefiting from such structure and the synergistic effect from two components, this material shows a high specific capacity over 1200 mA h g^-1 , an excellent rate performance, and superior cycling stability. The dominating pseudocapacitive behavior in Li storage contributes to the outstanding rate capacity. Importantly, this kind of novel material can be easily produced as 3D microelectrodes for microscaled LIBs that are highly demanded for autonomous microelectronic systems.

Keywords: 3D structure; electrochemical deposition; grapheme; lithium-ion battery; molybdenum sulfide.

Publication types

Research Support, Non-U.S. Gov't