Funding for this research was provided by:
National Natural Science Foundation of China (21476094)
the financial support of Jiangsu Province Natural Science Foundation (BK20171268)
the Program for Science and Technology Development of Huaian (HAG201609)
Jiangsu Province Qing Lan Project and the Opening Program for Jiangsu Key Lab for Chemistry of Low-Dimensional Materials (JSKC15142)
Text and Data Mining valid from 2018-08-22
Received: 30 May 2018
Accepted: 3 August 2018
First Online: 22 August 2018
: The authors declare that they have no competing interests.
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