Solid-Solution Alloying of Immiscible Ru and Cu with Enhanced CO Oxidation Activity,Journal of the American Chemical Society

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Solid-Solution Alloying of Immiscible Ru and Cu with Enhanced CO Oxidation Activity
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2017-03-24 , DOI: 10.1021/jacs.7b01186
Bo Huang ₁ , Hirokazu Kobayashi ₁ , Tomokazu Yamamoto _{2,

3} , Syo Matsumura _{2,

3,

4} , Yoshihide Nishida ₅ , Katsutoshi Sato _{5,

6} , Katsutoshi Nagaoka ₅ , Shogo Kawaguchi ₇ , Yoshiki Kubota ₈ , Hiroshi Kitagawa _{1,

4,

9}

Affiliation

Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
Kyushu University and the Ultramicroscopy Research Center, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
Department of Applied Chemistry, Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan
Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, 1-30 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan
Japan Synchrotron Radiation Research Insitute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
Department of Physical Science, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan

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.

中文翻译：

具有增强的 CO 氧化活性的不混溶 Ru 和 Cu 的固溶合金化

我们报告了 Ru 和 Cu 的新型固溶体合金纳米粒子 (NPs)，即使在体相熔点以上，它们也完全不混溶。粉末 X 射线衍射、扫描透射电子显微镜和能量色散 X 射线测量表明，Ru 和 Cu 原子均匀分布在合金纳米颗粒中。Ru0.5Cu0.5 NPs 表现出比 fcc-Ru NPs 更高的 CO 氧化活性，fcc-Ru NPs 被称为最好的单金属 CO 氧化催化剂之一。

更新日期：2017-03-24

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