Abstract
Pd–Ni–Fe nanoparticles supported on MnO2/Vulcan XC-72 R (carbon black powder) as the electrocatalyst for the anodic oxidation of ethanol in a direct ethanol alkaline fuel cell (DEAFC) has been conducted. Electrocatalyst structures and morphologies are investigated by XRD, FE-SEM, EDX and elemental mapping techniques and subsequently electrochemical performance of electrocatalysts for ethanol oxidation reaction (EOR) are studied by cyclic voltammetry (CV), chronoamperometry (CA) and electrochemical impedance spectroscopy (EIS). Pd/MnO2/Vulcan, Pd–Ni/MnO2/Vulcan and Pd–Ni–Fe/MnO2/Vulcan efficiently advanced ethanol electro-oxidation reaction under alkaline conditions. Pd/MnO2/Vulcan revealed best potential window and low charge transfer resistance (Rct) for EOR. Pd–Ni/MnO2/Vulcan and Pd–Ni–Fe/MnO2/Vulcan electrocatalysts have a good anti CO-poisoning capability. Pd–Ni–Fe/MnO2/Vulcan has significantly high current density, excellent catalyst durability and cyclic stability for ethanol oxidation which encourage researchers for application of such exceptional materials as anode electrocatalysts in DEFC.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.