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

被引：36

作者：

Hossain, M. Jakir ^{[1
]}

Tsunoyama, Hironori ^{[1
]}

Yamauchi, Miho ^{[1
]}

Ichikuni, Nobuyuki ^{[2
]}

Tsukuda, Tatsuya ^{[1
]}

机构：

[1] Hokkaido Univ, Catalysis Res Ctr, Sapporo, Hokkaido 0010021, Japan

[2] Chiba Univ, Grad Sch Engn, Dept Appl Chem & Biotechnol, Inage Ku, Chiba 2638522, Japan

来源：

CATALYSIS TODAY | 2012年 / 183卷 / 01期

关键词：

PVP-stabilized Pt nanoparticles; Micromixer; Aerobic alcohol oxidation; Reusable catalyst; PLATINUM NANOPARTICLES; AEROBIC OXIDATION; SUPPORTED PLATINUM; COLLOIDAL PLATINUM; CATALYSIS; ALCOHOLS; SIZE; NANOCLUSTERS; SPECTROSCOPY; WATER;

D O I：

10.1016/j.cattod.2011.10.008

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

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. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：101 / 107

页数：7

共 28 条

[1] Shape-controlled synthesis of colloidal platinum nanoparticles [J].

Ahmadi, TS ;

Wang, ZL ;

Green, TC ;

Henglein, A ;

ElSayed, MA .

SCIENCE, 1996, 272 (5270) :1924-1926

[2]

Anastas P., 1998, GREEN CHEM THEORY PR

[3] Spectroscopic Study of Platinum and Rhodium Dendrimer (PAMAM G4OH) Compounds: Structure and Stability [J].

Borodko, Yuri ;

Thompson, Christopher M. ;

Huang, Wenyu ;

Yildiz, Huseyin B. ;

Frei, Heinz ;

Somorjai, Gabor A. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (11) :4757-4767

[4]

Brown H.C., 1962, J AM CHEM SOC, V84, P1493, DOI DOI 10.1021/JA00867A034

[5] SIMPLE PREPARATION OF HIGHLY ACTIVE PLATINUM METAL CATALYSTS FOR CATALYTIC HYDROGENATION [J].

BROWN, HC ;

BROWN, CA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1962, 84 (08) :1494-&

[6] Electronic and geometric structures of supported platinum, gold, and platinum - Gold catalysts [J].

Bus, Eveline ;

van Bokhoven, Jeroen A. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (27) :9761-9768

[7] Investigation of the surface structure of colloidal platinum by infrared spectroscopy of adsorbed CO [J].

de Caro, D ;

Bradley, JS .

NEW JOURNAL OF CHEMISTRY, 1998, 22 (11) :1267-1273

[8] The adsorption of CO on group 10 (Ni, Pd, Pt) transition-metal clusters [J].

Gruene, Philipp ;

Fielicke, Andre ;

Meijer, Gerard ;

Rayner, David M. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2008, 10 (40) :6144-6149

[9] Polyol synthesis of platinum nanoparticles: Control of morphology with sodium nitrate [J].

Herricks, T ;

Chen, JY ;

Xia, YN .

NANO LETTERS, 2004, 4 (12) :2367-2371

[10]

Iwasawa Y., 1996, X-ray Absorption Fine Structure for Catalysts and Surfaces

← 1 2 3 →