1. Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua Zhejiang 321004 P. R. China
2. Center of Artificial Photosynthesis for Solar Fuels School of Science Westlake University Hangzhou 310024 P. R. China
3. Institute of Natural Sciences Westlake Institute for Advanced Study Hangzhou 310024 P. R. China
4. Institute of Materials Research and Engineering A*STAR (Agency for Science, Technology and Research) 2 Fusionopolis Way, Innovis, #08-03 138634 Singapore