1. Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China
2. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
3. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, P. R. China
4. Guangzhou Special Pressure Equipment Inspection and Research Institute, 9 Keyan Road, Guangzhou 510663, P. R. China
5. School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, P. R. China
6. Department of Engineering Science, University of Science and Technology of China, Hefei 230026, P. R. China