Direct evidence by in situ IR CO monitoring of the formation and the surface segregation of a Pt-Sn alloy

Alina Moscu; Yves Schuurman; Laurent Veyre; Chloe Thieuleux; Frederic Meunier

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Direct evidence by in situ IR CO monitoring of the formation and the surface segregation of a Pt-Sn alloy

机译：通过原位IR CO监测Pt-Sn合金的形成和表面偏析的直接证据

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The heat of CO adsorption on the Pt atoms of a Pt-Sn alloy phase could be specifically determined from in situ DRIFTS data and was found to be about half that measured on a plain Pt reference. Surprisingly, a reversible surface segregation of the Pt-Sn alloy was observed at temperatures below 175 ℃.

机译：可以根据原位DRIFTS数据确定CO吸附在Pt-Sn合金相的Pt原子上的热量，发现该热量大约是普通Pt参比值的一半。出乎意料的是，在低于175℃的温度下观察到Pt-Sn合金的可逆表面偏析。

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《Chemical Communications》 |2014年第62期|8590-8592|共3页
作者
Alina Moscu; Yves Schuurman; Laurent Veyre; Chloe Thieuleux; Frederic Meunier;
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Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), Universite Lyon 1, CNRS, 2, Av. Albert Einstein, F-69626 Villeurbanne, France;

Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), Universite Lyon 1, CNRS, 2, Av. Albert Einstein, F-69626 Villeurbanne, France;

Universite de Lyon, Institut de Chimie de Lyon, LC2P2, UMR 5265 CNRS-CPE Lyon-UCBL, CPE Lyon, 43 Bvd du 11 Novembre 1918, 69100 Villeurbanne, France;

Universite de Lyon, Institut de Chimie de Lyon, LC2P2, UMR 5265 CNRS-CPE Lyon-UCBL, CPE Lyon, 43 Bvd du 11 Novembre 1918, 69100 Villeurbanne, France;

Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), Universite Lyon 1, CNRS, 2, Av. Albert Einstein, F-69626 Villeurbanne, France;

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Direct evidence by in situ IR CO monitoring of the formation and the surface segregation of a Pt-Sn alloy

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