1. State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
2. University of Science and Technology of China, Hefei 230026, China
3. Zhongke Rare Earth (Changchun) Co., Ltd., Changchun 130000, P. R. China
4. The GBA National Institute for Nanotechnology Innovation, Guangzhou 510535, China