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Micelle-directed self-assembly of single-crystal-like mesoporous stoichiometric oxides for high-performance lithium storage.
Wan, Yanhua; Wang, Changyao; Zhang, Xingmiao; Yin, Yang; Liu, Mengmeng; Ma, Bing; Duan, Linlin; Ma, Yuzhu; Zhang, Wei; Zheng, Changlin; Chao, Dongliang; Wang, Fei; Xia, Yongyao; Li, Wei.
Affiliation
  • Wan Y; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Wang C; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Zhang X; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Yin Y; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
  • Liu M; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Ma B; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Duan L; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Ma Y; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Zhang W; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Zheng C; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
  • Chao D; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Wang F; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Xia Y; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
  • Li W; Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials Science, Fudan University, Shanghai 200433, China.
Natl Sci Rev ; 11(4): nwae054, 2024 Apr.
Article in En | MEDLINE | ID: mdl-38545447
ABSTRACT
Due to their uncontrollable assembly and crystallization process, the synthesis of mesoporous metal oxide single crystals remains a formidable challenge. Herein, we report the synthesis of single-crystal-like mesoporous Li2TiSiO5 by using soft micelles as templates. The key lies in the atomic-scale self-assembly and step-crystallization processes, which ensure the formation of single-crystal-like mesoporous Li2TiSiO5 microparticles via an oriented attachment growth mechanism under the confinement of an in-situ formed carbon matrix. The mesoporous Li2TiSiO5 anode achieves a superior rate capability (148 mAh g-1 at 5.0 A g-1) and outstanding long-term cycling stability (138 mAh g-1 after 3000 cycles at 2.0 A g-1) for lithium storage as a result of the ultrafast Li+ diffusion caused by penetrating mesochannels and nanosized crystal frameworks (5-10 nm). In comparison, bulk Li2TiSiO5 exhibits poor rate capability and cycle performance due to micron-scale diffusion lengths. This method is very simple and reproducible, heralding a new way of designing and synthesizing mesoporous single crystals with controllable frameworks and chemical functionalities.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Natl Sci Rev Year: 2024 Document type: Article Affiliation country: China Country of publication: China
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Natl Sci Rev Year: 2024 Document type: Article Affiliation country: China Country of publication: China