شماره ركورد كنفرانس :
3299
عنوان مقاله :
Electrodeposition of Pt/CeO2 as Hydrogen Peroxide Scavenger for Chemical Degradation Mitigation of Nafion® in Proton Exchange Membrane Fuel Cells
Author/Authors :
Sedighi Majid University of Mazandaran , Ebrahim Alizade Fuel Cell Technology Research Laboratory - Malek Ashtar University of Technology , M. Khorshidiam Fuel Cell Technology Research Laboratory - Malek Ashtar University of Technology , M. Rezaee Firozjaee Fuel Cell Technology Research Laboratory - Malek Ashtar University of Technology , Saadat S.H.M. Fuel Cell Technology Research Laboratory - Malek Ashtar University of Technology
كليدواژه :
Nafion , Chemical degradation , ex-situ Fenton tests , electrodeposition , Pt/CeO2/MWCNT
عنوان كنفرانس :
اولين كنفرانس بين المللي فناوري هاي نوين در علوم
چكيده لاتين :
In this study, Pt/CeO2 electrocatalysts were prepared on the multi-walled carbon nanotube (Pt/CeO2/MWCNT) by an electrochemical deposition process for reducing Reactive oxygen species (ROS) in fuel cells to CeO2 as free radical scavengers minimizes the degradation of Nafion. 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 activity of deposited electrocatalyst was tested in acidic solution by cyclic voltammetry (CV). Further, accelerated Nafion membrane durability investigated in ex-situ Fenton tests with and without Pt/CeO2/MWCNT electrocatalyst.
