کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10131160 | 1645539 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of solution pH on the oscillatory electro-oxidation of methanol
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The methanol electro-oxidation reaction (MER) was studied in a wide pH range under voltammetric and oscillatory regimes. Employing buffered hydrogen phosphates solutions, it was demonstrated that increasing the pH MER is firstly inhibited in the region up to 4-5 but after this point starts to increase reaching currents 5 times bigger than those in acidic media. Potential oscillations during MER are restricted to the pHâ¯<â¯3.5. While the oscillations frequency and shape change slightly in the studied pH range, the amplitude and poisoning rate, calculated in terms of dE/dt, are severely affected by the pH, culminating in the extinguishment of oscillations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 826, 1 October 2018, Pages 164-169
Journal: Journal of Electroanalytical Chemistry - Volume 826, 1 October 2018, Pages 164-169
نویسندگان
Gabriel B. Melle, Fabian W. Hartl, Hamilton Varela, Elton Sitta,