Funding for this research was provided by:
National Natural Science Foundation of China (11204110, 11347005)
IDENTIFIERS
COPYRIGHT AND LICENSING
: The Royal Society of Chemistry has an exclusive publication licence for this journal
PUBLICATION HISTORY
: Received 20 July 2016; Accepted 1 January 2017; Accepted Manuscript published 3 January 2017; Advance Article published 26 January 2017; Version of Record published 9 February 2017