Funding for this research was provided by:
National Natural Science Foundation of China (21202107, 21321061, J1103315)
IDENTIFIERS
COPYRIGHT AND LICENSING
: The Royal Society of Chemistry has an exclusive publication licence for this journal
PEER REVIEW METHOD
: Single-blind
PUBLICATION HISTORY
: Received 5 December 2016; Accepted 22 February 2017; Accepted Manuscript published 23 February 2017; Advance Article published 6 March 2017; Version of Record published 14 March 2017