Synthetic preparation of novel 3D Si/TiO2–Ti2O3 composite nanorod arrays as anodes in lithium ion batteries

Yuan Zhong; Chuang Yue; Binbin Chen; Shibo Sun; Mingsen Zheng; Libo Zhao; Suntao Wu; Jing Li; Junyong Kang; Liwei Lin

doi:10.1039/C5RA03595C

Synthetic preparation of novel 3D Si/TiO₂–Ti₂O₃ composite nanorod arrays as anodes in lithium ion batteries†

Yuan Zhong,^a Chuang Yue,^ad Binbin Chen,^c Shibo Sun,^a Mingsen Zheng,^c Libo Zhao,^b Suntao Wu,^a Jing Li,*^abd Junyong Kang^a and Liwei Lin^d

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* Corresponding authors

^a Department of Physics/Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen, Fujian, China
E-mail: lijing@xmu.edu.cn

^b State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shanxi, China

^c Department of Chemistry, Xiamen University, Xiamen, Fujian, China

^d Department of Mechanical Engineering, University of California, Berkeley, CA 94720, USA

Abstract

A three dimensional (3D) Si/TiO₂–Ti₂O₃ composite has been synthetically prepared on micro-fabricated Si nanorod arrays (NRs) by a solvothermal method. Improved electrochemical performances were achieved with this composite as the anode in lithium ion batteries compared to the individual Si NRs electrode, which benefited from the volume alleviating effect in the TiO₂ thin sheath and better conductivity in Ti₂O₃ grains. This novel nanostructured composite presents great potential in applications in micro/nano-electro-mechanic systems (M/NEMS), photovoltaic and photocatalytic devices.

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Synthetic preparation of novel 3D Si/TiO₂–Ti₂O₃ composite nanorod arrays as anodes in lithium ion batteries†

Abstract

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Synthetic preparation of novel 3D Si/TiO₂–Ti₂O₃ composite nanorod arrays as anodes in lithium ion batteries

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