Development of new preparation method for zeolite-coating noble metal nanoparticle with bird-cage structure by emulsion method

2014 Fiscal Year Final Research Report

• Project/Area Number: 25630352
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Reaction engineering/Process system
• Research Institution: Hokkaido University
• Principal Investigator: TERUOKI Tago 北海道大学, 工学(系)研究科(研究院), 准教授 (20304743)
• Co-Investigator(Kenkyū-buntansha): MASUDA Takao 北海道大学, 大学院工学研究院, 教授 (20165715) ; NAKASAKA Yuta 北海道大学, 大学院工学研究院, 助教 (30629548)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 化学工学 / 触媒・化学プロセス / 反応工学 / 多孔質触媒

Outline of Final Research Achievements

Major objective of this study is to develop a preparation method for zeolite-coating metal nanoparticle with bird-cage structure. Rhodium-complex nanoparticles were first prepared in micro-emulsion solution, followed by formation of MFI zeolite layer on the complex nanoparticles. TEM observation and H2-pulse methods, it was revealed that Rh nanoparticles with the size of approximately 3 nm were completely coated with MFI zeolite (Rh@MFI bird-cage material). Moreover, the Rh nanoparticle in the bird-cage material possessed strong resistance to sintering at high temperature (500～700℃). Because Rh inside the MFI zeolite are oxidized and reduced, a molecule can reach the Rh nanoparticles immobilized inside the MFI zeolite. Finally, MFI zeolite-coating Pt nanoparticle with bird-cage structure was successfully prepared by the same experimental procedure.

Free Research Field

化学工学