1. Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan
2. Department of Materials and Science Engineering, National Taiwan University of Science and Technology, 43, Section 4, Keelung Road, Taipei 106, Taiwan
3. Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan
4. National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan