Self-carbonized lamellar nano/micro hierarchical structure C/TiO2 and its Li-ion intercalation performance

Po-Chin Chen; Min-Chiao Tsai; Huang-Chin Chen; I-Nan Lin; Hwo-Shuenn Sheu; Yu-Sheng Lin; Jenq-Gong Duh; Hsin-Tien Chiu; Chi-Young Lee

doi:10.1039/C2JM15400E

Self-carbonized lamellar nano/micro hierarchical structure C/TiO₂ and its Li-ion intercalation performance†

Po-Chin Chen,^a Min-Chiao Tsai,^a Huang-Chin Chen,^e I-Nan Lin,^e Hwo-Shuenn Sheu,^d Yu-Sheng Lin,^a Jenq-Gong Duh,^a Hsin-Tien Chiu^c and Chi-Young Lee*^ab

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* Corresponding authors

^a Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu, Taiwan, R. O. C
E-mail: cylee@mx.nthu.edu.tw
Fax: + 886-3-5166687

^b Center of Nanotechnology, Materials Science, and Microsystem, National Tsing Hua University, No. 101 Sec. 2 Kung Fu Rd, Hsinchu, Taiwan, R. O. C

^c Department of Applied Chemistry, National Chiao Tung University, 1001, University Rd, Hsinchu, Taiwan, R. O. C
E-mail: htchiu@faculty.nctu.edu.tw

^d Department of Physics, Tamkang University, 151, Yingzhuan Rd, Danshui Dist, New Taipei City, Taiwan, R. O. C

^e Synchrotron Radiation Research Center, 101, Hsin-Ann Rd, Hsinchu, Taiwan, R. O. C

Abstract

In this study, two new layered titanates, fibrillar TiO₂·(CH₃COOH)_1.4 and chrysanthemum-like TiO₂·(CH₃COOH)_0.9 (named as FT and CT) with acetic acid and acetate intercalation have been synthesized by reacting titanium isopropoxide (TTIP) with acetic acid at different temperatures. Furthermore, nano/micro hierarchical structure TiO₂ with high TiO₂-B/anatse ratio was obtained by annealing the titanate (CT). For use as an anode for lithium ion batteries, uniform carbon coated titanium dioxide with high TiO₂-B content was obtained by “self-carbonizing” CT under argon atmosphere at 350 °C, and the compound was named SC-CT350. The capacity of the anode made from SC-CT350 can reach 144 mA h g⁻¹ under a high charging/discharging rate (10 C) and showed excellent retention ability.

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Article information

DOI: https://doi.org/10.1039/C2JM15400E
Article type: Paper
Submitted: 23 Oct 2011
Accepted: 05 Jan 2012
First published: 06 Feb 2012

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J. Mater. Chem., 2012,22, 5349-5355

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Self-carbonized lamellar nano/micro hierarchical structure C/TiO₂ and its Li-ion intercalation performance

P. Chen, M. Tsai, H. Chen, I. Lin, H. Sheu, Y. Lin, J. Duh, H. Chiu and C. Lee, J. Mater. Chem., 2012, 22, 5349 DOI: 10.1039/C2JM15400E

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