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Scalable fabrication of vanadium carbide/graphene electrodes for high-energy and flexible microsupercapacitors
Li, Hucheng1,2; Tang, Pei1,2; Shen, Haorui1,2; Hu, Tianzhao1,3; Chen, Junnan1,2; Chen, Ke1,4; Qi, Fulai1,2; Yang, Huicong1,2; Wen, Lei1,2; Li, Feng1,2
Corresponding AuthorWen, Lei(leiwen@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
2021-10-15
Source PublicationCARBON
ISSN0008-6223
Volume183Pages:840-849
AbstractIn-plane microsupercapacitors (MSCs) hold great promise for microscale power source, due to the extremely high power density and ultra-long cycling life. However, the scalable fabrication of flexible MSCs with high energy density remains a major challenge. Here, we demonstrate the fabrication of vanadium carbide/reduced graphene oxide (V8C7/rGO) MSCs via laser scribing on ammonium meta-vanadate/graphene oxide (NH4VO3/GO) films, prepared by efficient continuous centrifugal casting method. More than 20 MSCs can be produced on a flexible substrate in 30 min, showing the potential for scalable fabrication. The laser-induced V8C7/rGO shows highly porous microstructure, where vanadium carbide nanoparticles are in-situ synthesized and uniformly decorated on graphene nanosheets. The well-defined architecture endows V8C7/rGO MSCs with excellent electrochemical performance. The areal capacitance of these devices can be as high as 49.5 mF cm(-2), 11 times higher than that of rGO MSCs. The volumetric energy density and power density can be up to 3.4 mWh cm(-3) and 401 mW cm(-3), respectively, competitive with the commercially available energy storage devices and most reported MSCs. In addition, V8C7/rGO MSCs show excellent flexibility and integrability, as well as long cycling life, promising for practical applications. (C) 2021 Elsevier Ltd. All rights reserved.
KeywordGraphene Vanadium carbide Laser scribing Microsupercapacitor Flexible device
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China ; LiaoNing Revitalization Talents Program
DOI10.1016/j.carbon.2021.07.066
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51927803] ; National Natural Science Foundation of China[51902316] ; National Natural Science Foundation of China[51525206] ; National Key R&D Program of China[2016YFA0200102] ; National Key R&D Program of China[2016YFB0100100] ; LiaoNing Revitalization Talents Program[XLYC1908015]
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000705083800077
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166672
Collection中国科学院金属研究所
Corresponding AuthorWen, Lei; Li, Feng
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
4.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
Recommended Citation
GB/T 7714
Li, Hucheng,Tang, Pei,Shen, Haorui,et al. Scalable fabrication of vanadium carbide/graphene electrodes for high-energy and flexible microsupercapacitors[J]. CARBON,2021,183:840-849.
APA Li, Hucheng.,Tang, Pei.,Shen, Haorui.,Hu, Tianzhao.,Chen, Junnan.,...&Li, Feng.(2021).Scalable fabrication of vanadium carbide/graphene electrodes for high-energy and flexible microsupercapacitors.CARBON,183,840-849.
MLA Li, Hucheng,et al."Scalable fabrication of vanadium carbide/graphene electrodes for high-energy and flexible microsupercapacitors".CARBON 183(2021):840-849.
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