Funding for this research was provided by:
Basic Energy Sciences
National Natural Science Foundation of China (91334203)
RELATED DATA
COPYRIGHT AND LICENSING
: The Royal Society of Chemistry has an exclusive publication licence for this journal
PEER REVIEW METHOD
: Single-blind
PUBLICATION HISTORY
: Received 23 October 2015; Accepted 13 November 2015; Accepted Manuscript published 13 November 2015; Advance Article published 24 November 2015; Version of Record published 26 January 2016