Solid-Solution Alloying of Immiscible Ru and Cu with Enhanced CO Oxidation Activity

被引：111

作者：

Huang, Bo ^{[1
]}

Kobayashi, Hirokazu ^{[1
]}

Yamamoto, Tomokazu ^{[2
,3
,4
]}

Matsumura, Syo ^{[2
,3
,4
,5
]}

Nishida, Yoshihide ^{[6
]}

Sato, Katsutoshi ^{[6
,7
]}

Nagaoka, Katsutoshi ^{[6
]}

Kawaguchi, Shogo ^{[8
]}

Kubota, Yoshiki ^{[9
]}

Kitagawa, Hiroshi ^{[1
,5
,10
]}

机构：

[1] Kyoto Univ, Grad Sch Sci, Div Chem, Sakyo Ku, Kyoto 6068502, Japan

[2] Kyushu Univ, Dept Appl Quantum Phys & Nucl Engn, Nishi Ku, Motooka 744, Fukuoka 8190395, Japan

[3] Kyushu Univ, Nishi Ku, Motooka 744, Fukuoka 8190395, Japan

[4] Ultramicroscopy Res Ctr, Nishi Ku, Motooka 744, Fukuoka 8190395, Japan

[5] Kyushu Univ, INAMORI Frontier Res Ctr, Nishi Ku, Motooka 744, Fukuoka 8190395, Japan

[6] Oita Univ, Fac Engn, Dept Appl Chem, 700 Dannoharu, Oita 8701192, Japan

[7] Kyoto Univ, Elements Strategy Initiat Catalysts & Batteries, Nishikyo Ku, 1-30 Goryo Ohara, Kyoto 6158245, Japan

[8] Japan Synchrotron Radiat Res Inst JASRI, SPring 8,1-1-1 Kouto, Sayo, Hyogo 6795198, Japan

[9] Osaka Prefecture Univ, Grad Sch Sci, Dept Phys Sci, Sakai, Osaka 5998531, Japan

[10] Kyoto Univ, Inst Integrated Cell Mat Sci iCeMS, Sakyo Ku, Kyoto 6068501, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2017年 / 139卷 / 13期

基金：

日本科学技术振兴机构; 日本学术振兴会;

关键词：

BIMETALLIC NANOPARTICLES; CARBON-MONOXIDE; SHELL; CATALYSTS; REDUCTION; AU; NANOCRYSTALS; SURFACE; COPPER; SIZE;

D O I：

10.1021/jacs.7b01186

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on novel solid-solution alloy nanoparticles (NPs) of Ru and Cu that are completely immiscible even above melting point in bulk phase. Powder X-ray diffraction, scanning transmission electron microscopy, and energy-dispersive X-ray measurements demonstrated that Ru and Cu atoms were homogeneously distributed in the alloy NPs. Ru0.5Cu0.5 NPs demonstrated higher CO oxidation activity than fcc-Ru NPs, which are known as one of the best monometallic CO oxidation catalysts.

引用

页码：4643 / 4646

页数：4

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