1. Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources , Chinese Academy of Sciences , Qinghai, 810008 , China
2. Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province , Xining, 810008 , China
3. University of Chinese Academy of Sciences , Beijing, 100049 , China
4. Qinghai Institute of Salt Lakes , Chinese Academy of Sciences , Qinghai, 810008 , China
5. Shanghai Institute of Applied Physics , Chinese Academy of Sciences , Shanghai, 201204 , China