Laser crystallized sandwich-like MXene/Fe3O4/MXene thin film electrodes for flexible supercapacitors

doi:10.1016/j.jpowsour.2021.229882

	Laser crystallized sandwich-like MXene/Fe3O4/MXene thin film electrodes for flexible supercapacitors
	Li, Hui 5,6; Liu, Yanqiu 5,6; Lin, Shuai 5; Li, Han 5,6; Wu, Ziqiang 5,6; Zhu, Lili 5,6; Li, Changdian 1,2,5; Wang, Xin 5,6; Zhu, Xuebin 5; Sun, Yuping 3,4,5
刊名	JOURNAL OF POWER SOURCES
	2021-06-15
卷号	497
关键词	Laser crystallization Ti3C2Tx MXene ink Fe3O4 Flexible Thin film supercapacitors
ISSN号	0378-7753
DOI	10.1016/j.jpowsour.2021.229882
通讯作者	Lin, Shuai(linshuai17@issp.ac.cn) ; Zhu, Xuebin(xbzhu@issp.ac.cn)
英文摘要	For applications in portable electronics and miniaturized energy storage devices, MXene films derived from MXene inks can be provided as promising electrodes for thin film supercapacitors. Hence, to improve the areal capacitance of MXene films is necessary for pursuing high energy density. Introduction of transitional metal oxides (TMOs) layers into MXene electrodes obviously enhances the areal capacitance since of the extra pseu-docapacitance induced by the surface/near surface redox reactions. The severe oxidation of MXene in combination with TMOs, however, hinders the effective improvements in capacitance. Laser crystallization process can effectively alleviate the oxidation of MXene when TMOs is prepared due to the high temperature localization and ultrafast reaction speed. Here, a sandwich-like MXene/Fe3O4/MXene film with a porous Fe3O4 layer is successfully prepared on a flexible Ni tape, showing an excellent electrochemical performance. In 1 M Li2SO4 aqueous electrolyte, the sandwich-like electrode demonstrates 46.4 mF cm(-2) at the current density of 0.5 mA cm(-2). The as-constructed symmetric all-solid-state device displays an energy density of 0.970 mu Wh cm(-2) at a power density of 0.176 mW cm(-2) along with a good cycling stability. This work opens up a new opportunity for modifying MXene films as electrodes for high-performance thin film supercapacitors.
资助项目	National Key R&D Program of China[2016YFA0401801] ; National Key R&D Program of China[2014CB931704] ; Natural Science Foundation of Anhui Province[2008085ME126] ; Foundation for director of Institute of Solid State Physics, Chinese Academy of Sciences[2019DFS01] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH015]
WOS关键词	REDUCED GRAPHENE OXIDE ; TITANIUM CARBIDE MXENE ; HIGH-PERFORMANCE ; MICRO-SUPERCAPACITORS ; ANODE MATERIAL ; CARBON ; CAPACITY ; COMPOSITES ; NANOSHEET ; BEHAVIOR
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000647598200001
资助机构	National Key R&D Program of China ; Natural Science Foundation of Anhui Province ; Foundation for director of Institute of Solid State Physics, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/122423]
专题	中国科学院合肥物质科学研究院
通讯作者	Lin, Shuai; Zhu, Xuebin
作者单位	1.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China 2.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China 3.Chinese Acad Sci, High Magnet Field Lab, HFIPS, Hefei 230031, Peoples R China 4.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China 5.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 6.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Li, Hui,Liu, Yanqiu,Lin, Shuai,et al. Laser crystallized sandwich-like MXene/Fe3O4/MXene thin film electrodes for flexible supercapacitors[J]. JOURNAL OF POWER SOURCES,2021,497.
APA	Li, Hui.,Liu, Yanqiu.,Lin, Shuai.,Li, Han.,Wu, Ziqiang.,...&Sun, Yuping.(2021).Laser crystallized sandwich-like MXene/Fe3O4/MXene thin film electrodes for flexible supercapacitors.JOURNAL OF POWER SOURCES,497.
MLA	Li, Hui,et al."Laser crystallized sandwich-like MXene/Fe3O4/MXene thin film electrodes for flexible supercapacitors".JOURNAL OF POWER SOURCES 497(2021).