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Defective 1T′-ReSe2 nanosheets vertically grown on elastic MXene for fast and stable potassium ion storage
Zhou, J.1; Zhang, Y.L.1; Zheng, L.1; Qiu, Z.1; Wang, D.1; Yang, C.3; Hui, K.N.4; Yang, Y.5; Peng, Z.1; Guo, S.3
2022-06
Source PublicationScience China Materials
Abstract

The sluggish reaction kinetics and poor structure stability of transition metal dichalcogenides (TMDs)-based anodes in potassium-ion batteries (KIBs) usually cause limited rate performance and rapid capacity decay, which seriously impede their application. Herein, we report a vacancy engineering strategy for preparing a class of Te-doped 1T’-ReSe2 anchored onto MXene (Te-ReSe2/MXene) as an advanced anode for KIBs with high performance. By taking advantage of the synergistic effects of the defective Te-ReSe2 arrays with expanded interlayers and the elastic MXene nanosheets with self-autoadjustable function, the Te-ReSe2/MXene superstructure exhibits boosted K+ ion storage performance, in terms of high reversible capacity (361.1 mA h g−1 at 0.1 A g−1 over 200 cycles), excellent rate capability (179.3 mA h g−1 at 20 A g−1), ultra-long cycle life (202.8 mA h g−1 at 5 A g−1 over 2000 cycles), and steady operation in flexible full battery, presenting one of the best performances among the TMDs-based anodes reported thus far. The kinetics analysis and theoretical calculations further indicate that satisfactory pseudocapacitive property, high electronic conductivity and outstanding K+ ion adsorption/diffusion capability corroborate the accelerated reaction kinetics. Especially, structural characterizations clearly elaborate that the Te-ReSe2/MXene undergoes reversible evolutions of an initial insertion process followed by a conversion reaction.

KeywordRhenium Diselenide, Mxene, Te-doped, Potassium- Ion Batteries
DOI10.1007/s40843-022-2073-y
URLView the original
Indexed ByA&HCI
Language英語English
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorZheng, L.; Peng, Z.; Guo, S.
Affiliation1.School of Applied Physics and Materials, Wuyi University, Jiangmen, 529020, China
2.Laboratory of Advanced Spectro-Electrochemistry and Lithium-Ion Batteries, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
3.School of Materials Science and Engineering, Peking University, Beijing, 100871, China
4.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, 999078, China
5.State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, Xi’an, 710072, China
Recommended Citation
GB/T 7714
Zhou, J.,Zhang, Y.L.,Zheng, L.,et al. Defective 1T′-ReSe2 nanosheets vertically grown on elastic MXene for fast and stable potassium ion storage[J]. Science China Materials,2022.
APA Zhou, J.,Zhang, Y.L.,Zheng, L.,Qiu, Z.,Wang, D.,Yang, C.,Hui, K.N.,Yang, Y.,Peng, Z.,&Guo, S..(2022).Defective 1T′-ReSe2 nanosheets vertically grown on elastic MXene for fast and stable potassium ion storage.Science China Materials.
MLA Zhou, J.,et al."Defective 1T′-ReSe2 nanosheets vertically grown on elastic MXene for fast and stable potassium ion storage".Science China Materials (2022).
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