1. State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization Pangang Group Research Institute Panzhihua 617000 China
2. Institute of Frontier and Interdisciplinary Science Shandong University Qingdao Shandong 266237 China
3. School of Chemistry & Chemical Engineering Shandong University Jinan Shandong 250100 China
4. School of Materials Science and Engineering Ocean University of China Qingdao 266100 China
5. State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi University Nanning 530004 China