Funding for this research was provided by:
National Natural Science Foundation of China (21321063, 51272048, 91027042)
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 12 January 2017; Advance Article published 24 April 2017; Version of Record published 19 June 2017