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

M. Jakir Hossain; Hironori Tsunoyama; Miho Yamauchi; Nobuyuki Ichikuni; Tatsuya Tsukuda

doi:10.1016/j.cattod.2011.10.008

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

M. Jakir Hossain, Hironori Tsunoyama, Miho Yamauchi, Nobuyuki Ichikuni, Tatsuya Tsukuda

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

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 Pt ⁴⁺ ions by BH ₄ ^- in a micromixer. Because of microfluidic mixing, hydrolytic decomposition of BH ₄ ^- 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.

Original language	English
Pages (from-to)	101-107
Number of pages	7
Journal	Catalysis Today
Volume	183
Issue number	1
DOIs	https://doi.org/10.1016/j.cattod.2011.10.008
Publication status	Published - Mar 20 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)

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10.1016/j.cattod.2011.10.008

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title = "High-yield synthesis of PVP-stabilized small Pt clusters by microfluidic method",

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 Pt 4+ ions by BH 4 - in a micromixer. Because of microfluidic mixing, hydrolytic decomposition of BH 4 - 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.",

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AU - Hossain, M. Jakir

AU - Tsunoyama, Hironori

AU - Yamauchi, Miho

AU - Ichikuni, Nobuyuki

AU - Tsukuda, Tatsuya

PY - 2012/3/20

Y1 - 2012/3/20

N2 - Monodisperse PVP-stabilized Pt nanoparticles (PtNPs) with an average diameter of 1.4 ± 0.3 nm were efficiently produced via the complete reduction of Pt 4+ ions by BH 4 - in a micromixer. Because of microfluidic mixing, hydrolytic decomposition of BH 4 - 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.

AB - Monodisperse PVP-stabilized Pt nanoparticles (PtNPs) with an average diameter of 1.4 ± 0.3 nm were efficiently produced via the complete reduction of Pt 4+ ions by BH 4 - in a micromixer. Because of microfluidic mixing, hydrolytic decomposition of BH 4 - 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.

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

Abstract

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