TiO2–B Nanosheets/Anatase Nanocrystals Co‐Anchored on Nanoporous Graphene: In Situ Reduction–Hydrolysis Synthesis and Their Superior Rate Performance as an Anode Material |
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| Authors: | Chaoji Chen Prof. Xianluo Hu Yan Jiang Ze Yang Pei Hu Prof. Yunhui Huang |
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| Affiliation: | State Key Laboratory of Materials Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074 (China), Fax: (+86)?27‐8755‐8241 |
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| Abstract: | A unique hybrid, TiO2–B nanosheets/anatase nanocrystals co‐anchored on nanoporous graphene sheets, can be synthesized by a facile microwave‐induced in situ reduction–hydrolysis route. The as‐formed nanohybrid has a hierarchically porous structure, involving both mesopores of approximately 4 nm and meso‐/macropores of 30–60 nm in the graphene sheets, and a large surface area. Importantly, electrodes composed of the nanohybrid exhibit superior rate capability (160 mA h g?1 at ca. 36 C; 154 mA h g?1 at ca. 72 C) and excellent cyclability. The synergistic effects of conductive graphene with numerous nanopores and the pseudocapacitive effect of ultrafine TiO2–B nanosheets and anatase nanocrystals endow the hybrid a superior rate capability. |
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| Keywords: | anatase anode lithium storage microwave irradiation TiO2‐B |
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