Photoelectron-spectroscopic and reactivity investigation of thin Pd-Sn films prepared by magnetron sputtering

T. Skala; K. Veltruska; L. Sedlacek; K. Masek; I. Matolinova; V. Matolm

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Photoelectron-spectroscopic and reactivity investigation of thin Pd-Sn films prepared by magnetron sputtering

机译：磁控溅射制备Pd-Sn薄膜的光电子光谱和反应性研究

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We have studied Pd-Sn layers with different composition prepared by magnetron sputtering. Layers were sputtered onto Al_2O_3 and SiO_2 substrates and studied by X-ray photoelectron spectroscopy (XPS). Spectra confirmed that after vacuum annealing residual oxygen and carbon have been removed and bimetallic bonds have been created. The shift of Pd 3d_(5/2) core level to higher binding energy followed by the peak narrowing in dependence on the composition was observed, accompanied by the shift of the Pd 4d in the valence band region, induced by hybridization of Pd-d and Sn-s,p states. Experiments carried out on a gas-flow reactor indicate increasing temperature of the CO oxidation with tin ratio in the alloy.

机译：我们已经研究了通过磁控溅射制备的具有不同组成的Pd-Sn层。将层溅射到Al_2O_3和SiO_2衬底上，并通过X射线光电子能谱（XPS）研究。 Spectra证实，真空退火后，残留的氧气和碳已被除去，并形成了双金属键。观察到Pd 3d_（5/2）核心能级移至更高的结合能，然后峰依赖于组成变窄，伴随着Pd-d杂化引起的价带区域中Pd 4d的移位和Sn-s，p状态。在气流反应器上进行的实验表明，随着合金中锡比例的增加，CO氧化的温度也会升高。

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来源
《Applied Surface Science》 |2007年第12期|5400-5403|共4页
作者
T. Skala; K. Veltruska; L. Sedlacek; K. Masek; I. Matolinova; V. Matolm;
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作者单位

Charles University, Faculty of Mathematics and Physics, Department of Surface and Plasma Science, V Holesovickach 2, CZ-18000 Praha 8, Czech Republic;

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原文格式 PDF
正文语种 eng
中图分类应用物理学;
关键词
palladium; tin; alloys; XPS; magnetron sputtering; CO oxidation;

机译：钯;锡;合金;XPS;磁控溅射;一氧化碳;

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Photoelectron-spectroscopic and reactivity investigation of thin Pd-Sn films prepared by magnetron sputtering

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