University of California, Berkeley

Dorini Family Professor, University of Notre Dame

University of Al-Ameed

Universitatea Politehnica din Bucuresti, Academy of Romanian Scientists

National University of Science and Technology POLITEHNICA Bucharest

Professor,Chinese Academy of Sciences

South China University of Technology 华南理工大学 (化学与化工学院）

Gheorghe Asachi Technical University of Iasi

Beijing Normal university 北京师范大学化学学院

Research professor, Syracuse University