Xu, Nan
Li, Weimin
Zhang, Ming
Zhao, Gaiqing
Wang, Xiaobo
COPYRIGHT AND LICENSING
: The Royal Society of Chemistry has an exclusive publication licence for this journal
OPEN ACCESS: The accepted version of this article will be made freely available after a 12 month embargo period
PUBLICATION HISTORY
: Received 17 July 2014; Accepted 6 October 2014; Accepted Manuscript published 7 October 2014; Version of Record published 28 October 2014