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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:30 |
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Conference: Bucharest University Faculty of Physics 2013 Meeting
Section: Physics and Technology of Alternative Renewable Energy Supplies
Title:
Synthesis and physico-chemical analysis of alumina templates for PEMFC application
Authors:
Laurentiu Popovici, Serban Stamatin, Stefan-Marian Iordache, Ana-Maria Iordache1, Ioan Stamatin
Affiliation:
Univeristy of Bucharest, Faculty of Physics, 3Nano-SAE Research Center, 405 Atomistilor str., Bucharest-Magurele, 077125.
E-mail
popovici@3nanosae.org
Keywords:
PEMFC, alumina template, SEM, CV, optical microscopy.
Abstract:
Among the fuel cells, Polymer Electrolyte Membrane Fuel Cell is, by far, the most promising and the most researched. A Nafion 117 acidic membrane, Pt/C XC 72 and carbon paper + nanocarbons are the standard materials for constructing a PEMFC. This paper evaluates the characteristics of an alumina template for gas diffusion layer application in PEMFC. The alumina templates were fabricated from 99,9% pure aluminum foil, by electrochemical means; after synthesis, the templates were washed with piranha solution to remove the impurities and were functionalized with Pt particles. Electrochemical measurements, SEM microscopy and optical microscopy indicated the formation of aligned nanopores, which suggested a high surface area for the template; Pt4+ ions were reduced, inside those pores, by hydrazine, to Pt nanoparticles, the cyclic voltammetry measurements indicating an isolating electrical behavior.
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