Zhengzhou University
Xi received his B.S. degree from Xiamen University in 1983, and his M.S. degree from Nanjing University, Zhengzhou University and Henan Institute of Chemistry in 1989. He joined Professor Tamotsu Takahashi's group at the Institute for Molecular Sciences, Japan, as a Ph.D. course student in 1993 and obtained a Ph.D. degree in 1996.