1. Guangzhou Institute of Energy Conversion; Chinese Academy of Sciences; Guangzhou 510640 China
2. CAS Key Laboratory of Gas Hydrate; Guangzhou 510640 China
3. Guangzhou Center for Gas Hydrate Research; Chinese Academy of Sciences; Guangzhou 510640 China
4. University of Chinese Academy of Sciences; Beijing 100049 China
5. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development; Guangzhou 510640 China
6. Department of Chemical and Biological Engineering; University of British Columbia; Vancouver BC V6T 1Z4 Canada