[1] Shanghai Jiao Tong Univ, Dept Chem Engn, Shanghai 200240, Peoples R China
[2] Nanning Univ, Sch Mech Elect & Qual Technol Engn, Nanning 532999, Guangxi, Peoples R China
[3] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China
[4] Brookhaven Natl Lab, Energy & Photon Sci Directorate, Upton, NY 11973 USA