1. Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry; Beijing Normal University; Beijing 100875 P. R. China
2. Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology; Tianjin University; Tianjin 300350 P. R. China
3. Enhanced Oil Recovery Research Institute; China University of Petroleum; Beijing 102249 P R China