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super-growth method, Nanotechnology, 33, 065707(1-6), 2022.2) Synthesis of mesoporous silica-zirconia composite hollow spheres with enhanced activity toward hydrolysis of ammonia borane, Microporous and Mesoporous Materials, 294, 109839(1-6), 2020.3) Lithium ion conductivity of complex hydrides incorporating multiple closo -type complex anions, Journal of Energy Chemistry, 38, 84-87, 2019.4) A complex hydride lithium superionic conductor for high-energy-density all-solid-state lithium metal batteries, Nature Communications, 10, 1081(1-9), 2019. Influence of aluminum precursors on structure and acidic properties of hollow silica-alumina composite spheres, and their activity for hydrolytic dehydrogenation of ammonia borane, International Journal of Hydrogen Energy, 42, 84-87, 2017.5) Naoki Toyama is an assistant professor at the Department of Sustainable Engineering, College of Industrial Technology, Nihon University. He received his BEng in Materials and Applied Chemistry from Nihon University in 2012, and his PhD from Nihon University in 2017. He worked at the Institute for Materials Research, Tohoku University as a postdoctoral researcher from 2017 to 2019. He worked at the Department of Engineering for Future Innovation, National Institute of Technology, Ichinoseki College as an assistant professor from 2019 to 2021. While working at the Graduate School of Science and Technology, his major research topic was inorganic material chemistry, especially the synthesis of solid acid catalysts for the generation of hydrogen from complex hydrides. After leaving Ichinoseki College in 2021, he moved to Nihon University. Dr. Toyama is a member of the Chemical Society of Japan, the Ceramic Society of Japan, the Catalysis Society of Japan, the Society of Inorganic Materials, Japan, and the Japan Institute of Energy.－　　－32Research Achievements1) Enhanced activity for reduction of 4-nitrophenol of Ni/single-walled carbon nanotube prepared by Naoki TOYAMAAssistant Professor, Department of Sustainable Engineering