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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  

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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