a
Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
E-mail: keymix@ust.hk
;
Fax: +852 23580054
;
Tel: +852 23587127
b
Department of Chemistry, Tongji University, Shanghai, P. R. China 200092
c
Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
E-mail: phnlin@ust.hk