[1] Griffith Univ, Ctr Clean Environm & Energy, Gold Coast Campus, Gold Coast, Qld 4222, Australia
[2] Univ Wollongong, Inst Superconducting & Elect Mat, Squires Way, North Wollongong, NSW 2500, Australia
[3] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China