1. Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy Shanghai University Shanghai 200444 China
2. School of Environmental and Chemical Engineering Shanghai University Shanghai 200444 China
3. Institute for Superconducting and Electronic Materials Australian Institute for Innovative Materials University of Wollongong North Wollongong New South Wales 2522 Australia
4. Shanghai Key Laboratory of High Temperature Superconductors Shanghai 200444 China