کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1296960 1498379 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of oxygen-containing synthetic atmospheres on the impedance spectra of PtAu and PtRh electrodes applied on YSZ substrates
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Effect of oxygen-containing synthetic atmospheres on the impedance spectra of PtAu and PtRh electrodes applied on YSZ substrates
چکیده انگلیسی

Impedance spectroscopy measurements were carried out on a series of PtAu and PtRh electrodes applied onto YSZ ceramic substrates. Impedance spectra were collected in the 10mHz–100 kHz frequency range using a three-electrode arrangement with either PtAu1 % or PtRh 20% as the working electrode, and Pt metal as reference and counter electrodes. Measurements were done at temperatures 550 and 750 °C in a range of atmospheres with oxygen contents varying from 0% to 21%. A short physical interpretation of observed phenomena was presented. The results seem to confirm that two different mechanisms of electrode reactions are employed in the Pt/YSZ system for lower temperature (550 °C) and higher temperature (750 °C).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 179, Issues 1–6, 31 March 2008, Pages 178–181
نویسندگان
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