Funding for this research was provided by:
National Natural Science Foundation of China (61872260)
Key Research and Development Program International Cooperation Projectof Shanxi Province of China (201703D421013)
Institute Level Research Fund Project of Shanxi Energy College (ZY-2017002)
Institute Level Research Fund Project of Shanxi Energy College (SY-2018004)
Article History
First Online: 10 August 2020