کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9812615 | 1518116 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical and mass variation behaviour of rhodium oxide electrodes prepared by the polymeric precursor method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrochemical and mass variation behaviour of rhodium oxide electrodes prepared by the polymeric precursor method Electrochemical and mass variation behaviour of rhodium oxide electrodes prepared by the polymeric precursor method](/preview/png/9812615.png)
چکیده انگلیسی
This paper describes an investigation of the charging processes of Rh2O3 electrodes in acidic medium using Electrochemical Quartz Crystal Microbalance. The Rh2O3 was prepared by the Pechini method. The microstructural characterization of the rhodium oxide was performed using Scanning Electron Microscopy and the structure was determined by X-ray diffraction. The Rh2O3 oxidizes at potentials higher than 0.8 V. A mass loss of 60 ng was observed during the anodic sweep. The same amount is gained during the cathodic sweep indicating that the process is reversible. From the mass versus charge plots a slope of 8.5 g molâ1is calculated. Considering a process that involves a two-electron transfer, the oxidation of Rh2O3 to RhO2 with the loss of a water molecule (18 g molâ1) is proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 483, Issues 1â2, 1 July 2005, Pages 164-168
Journal: Thin Solid Films - Volume 483, Issues 1â2, 1 July 2005, Pages 164-168
نویسندگان
M.C. Santos, R.T.S. Oliveira, E.C. Pereira, L.O.S. Bulhões,