1Department
of Chemical Engineering, National Taiwan University of Science and Technology, 43, Section 4, Keelung Road, Taipei 10617, Taiwan
2Graduate
Institute of Applied Science and Technology, National Taiwan University of Science and Technology, 43 Keelung Road, Sec. 4, Taipei 10617, Taiwan
3Department
of Chemistry and Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, United States
4National Center for Synchrotron Radiation Research Centre, Hsinchu, Taiwan