Metallic 1T-MoS2 coupled with MXene towards ultra-high rate-capabilities for supercapacitors

doi:10.1039/d2ta01908f

	Metallic 1T-MoS2 coupled with MXene towards ultra-high rate-capabilities for supercapacitors
	Wan, Feng 1; Wang, Xin 1; Tang, Can 1; Jiang, Chengzhong 1; Wang, Weixin 1; Li, Bing 1; Zhang, Yongxing 1; Zhu, Xuebin 2
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2022-06-07
卷号	10
ISSN号	2050-7488
DOI	10.1039/d2ta01908f
通讯作者	Wang, Xin(wkangxin@163.com) ; Zhang, Yongxing(zyx07157@mail.ustc.edu.cn)
英文摘要	Metallic 1T-phase MoS2 (1T-MoS2) nanosheets with large interlayer spacing are considered to be a high-energy electrode material for use in supercapacitors; however, the electrochemical storage mechanism of 1T-MoS2 involves ion intercalation, resulting in energy storage being limited at high current densities and showing poor rate capability. Here, a 1T-MoS2/Ti3C2Tx heterostructure was assembled from metallic 1T-MoS2 nanosheets coupled with a Ti3C2 MXene through one-pot hydrothermal synthesis, and the electrochemical storage mechanisms were investigated. The electrochemical advantages of 1T-MoS2 and Ti3C2Tx can be united via synergistic interplay in the heterostructure. The high specific capacitance is attributed to the metallic properties and the large interlayer spacing of the 1T-MoS2 component. More importantly, ultra-high rate capability is realized due to fast electron and ion transport originating from Ti3C2Tx. In addition, an all-solid-state flexible asymmetric aqueous supercapacitor (FASC) constructed with 1T-MoS2/Ti3C2Tx as the negative electrode and delta-MnO2 as the positive electrode shows a wide potential window of 1.8 V and a high areal energy density of 68.8 mu W h cm(-2) at 4500 mu W cm(-2). This work will provide a reference for studying electrochemical storage mechanisms in heterostructures, and it demonstrates the promise of the 1T-MoS2/MXene heterostructure for supercapacitor use.
资助项目	Key Natural Science Research Project for Colleges and Universities of Anhui Province[KJ2021A0519] ; Key Natural Science Research Project for Colleges and Universities of Anhui Province[KJ2021ZD0056] ; National Innovation and Entrepreneurship Program for College Students[202110373029] ; Talent Support Program of Anhui Province[gxyqZD2021111]
WOS关键词	LAYERED DOUBLE HYDROXIDE ; HIGH-PERFORMANCE ; MOS2 NANOSHEETS ; ANODE MATERIALS ; ELECTRODES ; HYBRID ; OXIDE ; 1T ; HETEROSTRUCTURES ; INTERCALATION
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000802123700001
资助机构	Key Natural Science Research Project for Colleges and Universities of Anhui Province ; National Innovation and Entrepreneurship Program for College Students ; Talent Support Program of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131009]
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Xin; Zhang, Yongxing
作者单位	1.Huaibei Normal Univ, Sch Phys & Elect Informat, Dept Mat Sci & Engn, Anhui Prov Key Lab Pollutant Sensit Mat & Environ, Huaibei 235000, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Wan, Feng,Wang, Xin,Tang, Can,et al. Metallic 1T-MoS2 coupled with MXene towards ultra-high rate-capabilities for supercapacitors[J]. JOURNAL OF MATERIALS CHEMISTRY A,2022,10.
APA	Wan, Feng.,Wang, Xin.,Tang, Can.,Jiang, Chengzhong.,Wang, Weixin.,...&Zhu, Xuebin.(2022).Metallic 1T-MoS2 coupled with MXene towards ultra-high rate-capabilities for supercapacitors.JOURNAL OF MATERIALS CHEMISTRY A,10.
MLA	Wan, Feng,et al."Metallic 1T-MoS2 coupled with MXene towards ultra-high rate-capabilities for supercapacitors".JOURNAL OF MATERIALS CHEMISTRY A 10(2022).