این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Analytical and Bioanalytical Electrochemistry، جلد ۱۴، شماره ۱، صفحات ۷۴-۸۸
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Electrocatalytic Oxidation of Methanol using Fluorine-Tin Oxide Electrode Modified with Platinum and Osmium Nanoparticles Dispersed into Montmorillonite Clay Film
چکیده انگلیسی مقاله A new nanocatalyst was prepared using montmorillonite (MMT) clay mineral as a low-cost substrate incorporation with platinum and osmium nanoparticles for electrocatalytic oxidation of methanol molecules. The morphology and microscopic structure of the nanocomposite film formed at the surface of the fluorine tin oxide (FTO) electrode, were characterized by scanning electron microscopy and energy dispersive X-ray analysis. The electrocatalytic activity of the Pt-Os/Clay/FTO modified electrode was compared with Pt/FTO and Pt/Clay/FTO electrodes using cyclic voltammetry and chronoamperometry techniques and it was found that the Pt-Os/Clay/FTO electrode has a better performance for oxidation of methanol molecules. The exchange current density (J0) values for Pt/FTO, Pt/Clay/FTO and Pt-Os/Clay/FTO were calculated using the Tafel equation and they were found to be: 2.48×10-6, 4.01×10-6 and 8.45×10-6 mA cm-2, respectively. The results indicate that the purposed electrode accelerates significantly the process of methanol electrooxidation. The effects of various parameters on the electro-oxidation of methanol molecules were investigated and the obtained experimental results were discussed. The new modified electrode, showed a significant electrocatalytic activity for methanol electrooxidation over the other Pt-modified electrodes.
کلیدواژه‌های انگلیسی مقاله Fluorine tin oxide,Montmorillonite,Clay,Platinum-osmium nanoparticles,Electrooxidation of methanol
نویسندگان مقاله Ibtihal Hashim Azeez Al-Omairi |
Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran

Behjat Deiminiat |
Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran

Gholam Hossein Rounaghi |
Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran

Simin Kolahi-Ahari |
Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran

نشانی اینترنتی https://www.abechem.com/article_249324_4c77e45defcaa6a2ee09c6b37f1fdc9e.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات