Funding for this research was provided by:
the National Natural Science Foundation of China (No. 51502146, 51702270, 21671113)
the PetroChina Innovation Foundation (NO:2018D-5007-0604)
the Open Fund of the State Key Laboratory of Physical Chemistry of Solid Surfaces (201601)
the Open Fund of the Key Laboratory for Photonic and Electric Bandgap Materials, Ministry of Education (Harbin Normal University). (PEBM201702)
Article History
Received: 1 May 2019
Accepted: 17 June 2019
First Online: 10 July 2019