In-situ generated metal/alloy nanoparticles within monolithic hydridosilica support applied to catalytic reactions

2016 Fiscal Year Final Research Report

• Project/Area Number: 26288106
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Inorganic industrial materials
• Research Institution: Kyoto University
• Principal Investigator: Nakanishi Kazuki 京都大学, 理学(系)研究科(研究院), 准教授 (00188989)
• Co-Investigator(Kenkyū-buntansha): 嶋田 豊司 奈良工業高等専門学校, その他部局等, 教授 (20303802) ; 金森 主祥 京都大学, 理学(系)研究科(研究院), 助教 (60452265) ; 亀井 稔之 奈良工業高等専門学校, その他部局等, 准教授 (70534452)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: ヒドリドシリカ / 多孔体 / ナノ粒子 / 還元反応 / モノリス担体 / 触媒反応

Outline of Final Research Achievements

Hydrolysis/polycondensation of trialkoxysilanes was carefully conducted to preserve Si-H ligands followed by the sol-gel transition accompanied by phase separation, which lead to the formation of hierarchically macro/meso-porous hydridosilica monoliths. By introducing noble metals solutions with optimized solvent composition into the hydridosilica monoliths, metal/alloy nanoparticles were formed in a controlled manner. The catalytic performance was evaluated using the monolithic flow-through reactors with embedded metal/alloy nanoparticles as catalysts. Dehydrogenation catalyzed by borane catalyst was also explored to modify silica supports with well-defined pore structure with polymeric reagents bearing Si-H groups. The metal/alloy nanoparticles were produced on the surface of silica support of which catalytic performance was examined in detail.

Free Research Field

無機材料化学