Electrochemical characterization of palladium supported in thermally treated carbon for oxygen reduction reaction in acid media

R. G. González-Huerta, M. L. Luna-Martínez, O. Solorza-Feria

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In proton exchange membrane fuel cell (PEMFC), the low interaction between the electrocatalyst and the support has been subjected of an intensive research in last years. The low interaction arises by a decreased contact between the support and the nano sized catalyst. In this paper the palladium supported in thermally treated carbon (Pd/TTC) was synthesized via the NaBH4 reduction of the PdCl2 precursor at 60°C. The supporting carbon was thermally treated at 200°C, 400°C, 600°C and 800°C. Structural characterization of the TTC was examined by Raman spectroscopy and the Pd/TTC morphology by SEM. Electrocatalyst activity for the oxygen reduction reaction was investigated by cyclic and linear voltammetry in 0.5M H 2SO4 at 25°C. The resulted Pd/TTC at 400°C and 600°C showed significantly higher activity following kinetics of four electrons transfer to water formation. This behavior is attributed to structural properties and superficial conditions of the supporting carbon.

Original languageEnglish
Title of host publicationMES 24
Subtitle of host publicationElectrochemical Applications to Biology, Nanotechnology, and Environmental Engineering and Materials
PublisherElectrochemical Society Inc.
Pages267-274
Number of pages8
Edition1
ISBN (Electronic)9781566777766
ISBN (Print)9781607681267
DOIs
StatePublished - 2009
Externally publishedYes

Publication series

NameECS Transactions
Number1
Volume20
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

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