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High-yield synthesis of PVP-stabilized small Pt clusters by microfluidic method

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Title: High-yield synthesis of PVP-stabilized small Pt clusters by microfluidic method
Authors: Hossain, M. Jakir Browse this author
Tsunoyama, Hironori Browse this author →KAKEN DB
Yamauchi, Miho Browse this author
Ichikuni, Nobuyuki Browse this author
Tsukuda, Tatsuya Browse this author →KAKEN DB
Keywords: PVP-stabilized Pt nanoparticles
Aerobic alcohol oxidation
Reusable catalyst
Issue Date: 20-Mar-2012
Publisher: Elsevier B.V.
Journal Title: Catalysis Today
Volume: 183
Issue: 1
Start Page: 101
End Page: 107
Publisher DOI: 10.1016/j.cattod.2011.10.008
Abstract: Monodisperse PVP-stabilized Pt nanoparticles (PtNPs) with an average diameter of 1.4 ± 0.3 nm were efficiently produced via the complete reduction of Pt4+ ions by BH4- in a micromixer. Because of microfluidic mixing, hydrolytic decomposition of BH4- by the PtNPs formed in the initial stage of the reaction was suppressed, and hence, the PtNP yield was higher than that in the conventional batch mixing. The results of various spectroscopic analyses including EXAFS, FTIR of CO and XPS revealed that the microfluidically synthesized PtNPs were negatively charged and had a high population of edges and vertices on their surface. The PtNPs dispersed in oxygen-saturated water catalyzed the selective oxidation of PhCH2OH to PhCHO.
Type: article (author version)
Appears in Collections:触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佃 達哉

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