Issue 29, 2012

Superior high rate performance of core–shell Li4Ti5O12/carbon nanocomposite synthesized by a supercritical alcohol approach

Abstract

A facile, fast, and effective method for the preparation of a core–shell LTO/C nanocomposite via a supercritical alcohol route is presented. Organic-modified LTO nanocrystals were first synthesized in supercritical methanol at a short reaction time of 15 min using oleylamine as a surface-modifier and as a carbon precursor. Subsequent calcination under inert conditions resulted in a highly crystalline LTO core with a size of 5–15 nm and highly graphitic carbon shell with a thickness of 0.7–2.3 nm. The obtained core–shell LTO/C nanocomposite exhibited superior high rate performance, long-term cyclability, and low-temperature discharge capacity.

Graphical abstract: Superior high rate performance of core–shell Li4Ti5O12/carbon nanocomposite synthesized by a supercritical alcohol approach

Supplementary files

Article information

Article type
Communication
Submitted
01 Aug 2012
Accepted
07 Sep 2012
First published
17 Sep 2012

RSC Adv., 2012,2, 10805-10808

Superior high rate performance of core–shell Li4Ti5O12/carbon nanocomposite synthesized by a supercritical alcohol approach

A. Nugroho, W. Chang, S. Jin Kim, K. Yoon Chung and J. Kim, RSC Adv., 2012, 2, 10805 DOI: 10.1039/C2RA21653A

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