Study of the oxidation reactions of methanol, ethanol and mixtures of these alcohols using PtM (M=Sn/Ce) electrocatalysts

• Grant number: 12/09664-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: September 01, 2012
• End date: August 31, 2013
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Mauro Coelho dos Santos
• Grantee: Aline Amorim
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil

Abstract

This work seeks the development of PtSn/MWNT and PtCe/MWNT electrocatalysts using functionalized or not carbon nanotubes to improve the electrocatalytic activity in the electrocatalysts during the oxidation reactions of ethanol, methanol, and mixtures of these alcohols in different proportions for a future application in fuel cells. The materials will be initially prepared by the polymeric precursor method, but other preparation methods may be used in order to vary the alloy degree in the PtSn/MWNT electrocatalyst. The following characterization techniques will be used in the electrocatalysts: XRD, XPS, TEM, ATR-FTIR. Besides, electrochemical techniques, such as cyclic voltammetry, chronoamperometry, and spectroelectrochemistry (ATR-FTIR "in situ") will be used to evaluate the general electrochemical behavior of the materials, analyze the electrocatalytic activity of the electrocatalysts and the reactions paths for the oxidation of ethanol, methanol, and their mixtures. The best materials will be tested in a direct alcohol fuel cell.(AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ALINE AMORIM; LUANNA S. PARREIRA; JÚLIO CÉSAR M. SILVA; MAURO C. DOS SANTOS. Electrooxidation of Mixed Ethanol and Methanol Solutions on PtSn/C Electrocatalysts Prepared by the Polymeric Precursor Method. Journal of the Brazilian Chemical Society, v. 28, n. 6, p. 1091-1097, 2017-06-00. (13/01577-0, 15/10314-8, 12/09664-6)