Unique synthesis of hollow Co3O4 nanoparticles embedded in thin Al2O3 nanosheets for enhanced lithium storage

Jiao Yang; Hua-Jun Qiu; Liang Peng; Wenxiang Li; Yu Wang

doi:10.1039/C5NR04221F

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Unique synthesis of hollow Co₃O₄ nanoparticles embedded in thin Al₂O₃ nanosheets for enhanced lithium storage†

Jiao Yang,^a Hua-Jun Qiu,^a Liang Peng,^a Wenxiang Li^a and Yu Wang*^a

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* Corresponding authors

^a The State Key Laboratory of Mechanical Transmissions and School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
E-mail: wangy@cqu.edu.cn, prospectwy@gmail.com

Abstract

The designed synthesis of advanced nanocomposite architecture is significant for its applications in energy storage, catalysis, sensing, etc. Herein, thin Al₂O₃ hexagonal nanosheets with encapsulated hollow Co₃O₄ nanoparticles (Co₃O₄-HNPs) are successfully synthesized by using Co₆Al₂CO₃(OH)₁₆·4H₂O nanosheets as templates followed by a two-step annealing process. When used as an anode material in lithium ion batteries (LIBs), the homogeneous Co₃O₄-HNP/Al₂O₃ nanosheet composite exhibits an excellent performance with high reversible capacity and rate capability, and enhanced cycling stability.

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Article information

DOI: https://doi.org/10.1039/C5NR04221F
Article type: Paper
Submitted: 24 Jun 2015
Accepted: 25 Aug 2015
First published: 27 Aug 2015

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Nanoscale, 2015,7, 15983-15989

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Unique synthesis of hollow Co₃O₄ nanoparticles embedded in thin Al₂O₃ nanosheets for enhanced lithium storage

J. Yang, H. Qiu, L. Peng, W. Li and Y. Wang, Nanoscale, 2015, 7, 15983 DOI: 10.1039/C5NR04221F

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