1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences; CAS Key Laboratory of Renewable Energy; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, No. 2 Nengyuan Road, Wushan, Tianhe District, Guangzhou 510640, Guangdong Province, P. R. China
2. University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, P. R. China
3. Collaborative Innovation Centre of Biomass Energy, No. 63 Agricultural Road, Jinshui District, Zhengzhou 450002, Henan Province, P. R. China