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Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors
Hu, Minmin1,2; Cheng, Renfei1,3; Li, Zhenjiang2; Hu, Tao4; Zhang, Hui5; Shi, Chao1; Yang, Jinxing1,3; Cui, Cong1,3; Zhang, Chaolan1; Wang, Hailong6; Fan, Bingbing6; Wang, Xiaohui1; Yang, Quan-Hong7
Corresponding AuthorWang, Xiaohui(wang@imr.ac.cn) ; Yang, Quan-Hong(qhyangcn@tju.edu.cn)
2020-01-14
Source PublicationNANOSCALE
ISSN2040-3364
Volume12Issue:2Pages:763-771
AbstractElectrochemical pseudocapacitors store energy via intercalation or electrosorption and faradaic charge transfer with redox reactions. MXenes represent the promising intercalation pseudocapacitive electrode materials for supercapacitors due to their ultrahigh theoretical capacitances. Achieving a high capacitance will greatly advance the large-scale applications as in power grids. However, a rational design concept has not been exploited to achieve the theoretical limit. Here, we show how interlayer engineering helps to achieve the limit. Interlayer engineering in this manner simultaneously creates a broadened yet uniform interlayer spacing - providing a "highway" for fast ion diffusion, and incorporates heteroatoms with lower electronegativity - offering "trucks" (redox active sites) on such a "highway" for speeding charge transfer, enabling high capacitance. Following the concept, through annealing the as-prepared Ti3C2Tx MXene under an ammonia atmosphere, the engineered MXene delivers much improved capacitance with excellent rate performance and cyclability. The overall performance of the engineered MXene outperforms that of all other pseudocapacitive electrode materials.
Funding OrganizationShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences (CAS) ; Youth Innovation Promotion Association, CAS ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase) ; National Natural Science Foundation of China
DOI10.1039/c9nr08960h
Indexed BySCI
Language英语
Funding ProjectShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences (CAS) ; Youth Innovation Promotion Association, CAS[2011152] ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase)[U1501501] ; National Natural Science Foundation of China[51972310]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000507642000024
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136666
Collection中国科学院金属研究所
Corresponding AuthorWang, Xiaohui; Yang, Quan-Hong
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Qingdao Univ Sci & Technol, Coll Sino German Sci & Technol, Coll Electromech Engn, Key Lab Polymer Mat Adv Mfg Technol Shandong Prov, Qingdao 266061, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
4.Suzhou Univ Sci & Technol, Inst Mat Sci & Devices, Suzhou 215000, Peoples R China
5.Lawrence Berkeley Natl Lab, Energy Geosci Div, Berkeley, CA 94720 USA
6.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
7.Tianjin Univ, Sch Chem Engn & Technol, Nanoyang Grp, State Key Lab Chem Engn, Tianjin 300072, Peoples R China
Recommended Citation
GB/T 7714
Hu, Minmin,Cheng, Renfei,Li, Zhenjiang,et al. Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors[J]. NANOSCALE,2020,12(2):763-771.
APA Hu, Minmin.,Cheng, Renfei.,Li, Zhenjiang.,Hu, Tao.,Zhang, Hui.,...&Yang, Quan-Hong.(2020).Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors.NANOSCALE,12(2),763-771.
MLA Hu, Minmin,et al."Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors".NANOSCALE 12.2(2020):763-771.
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