Covalent Assembly of MoS 2 Nanosheets with SnS Nanodots as Linkages for Lithium/Sodium‐Ion Batteries
| Autor: | Renchao Che, Yutong Feng, Binjie Chen, Hao Tianzi, Chi Zhang, Zhijun Wang, Lianhai Zu, Qiaobao Zhang, Ruijin Meng, Ting He, Jiajia Ru, Jinhu Yang |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
010405 organic chemistry Graphene Sodium-ion battery chemistry.chemical_element Nanotechnology General Chemistry 010402 general chemistry 01 natural sciences Catalysis Lithium-ion battery 0104 chemical sciences law.invention Nanomaterials symbols.namesake chemistry law Covalent bond symbols Lithium Nanodot van der Waals force |
| Zdroj: | Angewandte Chemie International Edition. 59:14621-14627 |
| ISSN: | 1521-3773 1433-7851 |
| Popis: | Weak van der Waals interactions between interlayers of two-dimensional layered materials result in disabled across-interlayer electron transfer and poor layered structural stability, seriously deteriorating their performance in energy applications. Herein, we propose a novel covalent assembly strategy for MoS2 nanosheets to realize unique MoS2 /SnS hollow superassemblies (HSs) by using SnS nanodots as covalent linkages. The covalent assembly based on all-inorganic and carbon-free concept enables effective across-interlayer electron transfer, facilitated ion diffusion kinetics, and outstanding mechanical stability, which are evidenced by experimental characterization, DFT calculations, and mechanical simulations. Consequently, the MoS2 /SnS HSs exhibit superb rate performance and long cycling stability in lithium-ion batteries, representing the best comprehensive performance in carbon-free MoS2 -based anodes to date. Moreover, the MoS2 /SnS HSs also show excellent sodium storage performance in sodium-ion batteries. |
| Databáze: | OpenAIRE |
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