1. Western China Research Center of Energy & Environment, Lanzhou University of Technology, Lanzhou, China
2. Key Laboratory of Complementary Energy System of Biomass and Solar Energy, Lanzhou, China
3. Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, China
4. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science, Lanzhou, China