1. Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8656, Japan, Center for Materials for Information Technology (MINT), The University of Alabama, Tuscaloosa, Alabama 35487, Research Laboratory of Hydrothermal Chemistry, Kochi University, Kochi 780-8520, Japan, and 217 Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802