کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5349125 | 1388095 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An in-situ X-ray diffraction study on the electrochemical formation of PtZn alloys on Pt(1Â 1Â 1) single crystal electrode
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An in-situ X-ray diffraction study on the electrochemical formation of PtZn alloys on Pt(1Â 1Â 1) single crystal electrode An in-situ X-ray diffraction study on the electrochemical formation of PtZn alloys on Pt(1Â 1Â 1) single crystal electrode](/preview/png/5349125.png)
چکیده انگلیسی
The electrochemical formation and dissolution of the oxygen reduction reaction (ORR) PtZn catalyst on Pt(1Â 1Â 1) surface is followed by in-situ X-ray diffraction (XRD) and X-ray reflectivity (XRR) measurements. When the crystalline Pt surface is polarized to sufficiently negative potential values, with respect to an Ag/AgCl|KCl reference electrode, the electrodeposited zinc atoms diffuse into the bulk and characteristic features are observed in the X-ray patterns. The surface structure and composition during deposition and dissolution is determined from analysis of XRR curves and measurements of crystal truncation rods. Thin Zn-rich surface layer is present during the alloy formation while a Zn-depleted layer forms during dissolution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 354, Part B, 1 November 2015, Pages 443-449
Journal: Applied Surface Science - Volume 354, Part B, 1 November 2015, Pages 443-449
نویسندگان
J. Drnec, D. Bizzotto, F. Carlà , R. Fiala, A. Sode, O. Balmes, B. Detlefs, T. Dufrane, R. Felici,