1. Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
2. Department of Chemistry, National University of Singapore, Singapore 117551, Singapore
3. School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin University, Tianjin 300072, China
4. Institute of Sustainability for Chemicals, Energy and Environment, A*STAR, 1 Pesek Road, 627833, Singapore