کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5148374 | 1497369 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced electro-oxidation of ethanol using Pt-CeO2 electrocatalyst prepared by electrodeposition technique
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Pt-CeO2 electrocatalysts were prepared on the multi-walled carbon nanotube (Pt-CeO2-MWCNT) by an electrochemical deposition process. First, CeO2 is electrodeposited on treated MWCNTs in the optimum deposition conditions. Then, the Pt nanoparticle is electrochemically deposited on CeO2/MWCNT electrode by applying a constant potential via chronoamperometry method. The electrocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The electro-oxidation of ethanol (EOR) was studied at room temperature by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and chronoamperometry (CA) measurements. The onset potential of Pt-CeO2-MWCNT shifts to negative compared to the onset potential of Pt-MWCNT. The results indicating CeO2 could significantly enhance the stability and CO poisoning tolerance of the Pt for alkaline direct ethanol fuel cells (DEFC).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 8, 23 February 2017, Pages 4998-5005
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 8, 23 February 2017, Pages 4998-5005
نویسندگان
Majid Sedighi, Abbas Ali Rostami, Ebrahim Alizadeh,