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Metal Oxides as Catalyst Promoters for Methanol Oxidation

Published online by Cambridge University Press:  21 May 2012

Praveen Kolla ,
Kimberly Kerce ,
Hao Fong  and
Alevtina Smirnova
Praveen Kolla
Affiliation:
Material Engineering Science Program, South Dakota School of Mines and Technology, Rapid City, SD 57701, U.S.A.
Kimberly Kerce
Affiliation:
Department of Chemistry, South Dakota School of Mines and Technology, Rapid City, SD 57701, U.S.A., Material Engineering Science Program
Hao Fong
Affiliation:
Department of Chemistry, South Dakota School of Mines and Technology, Rapid City, SD 57701, U.S.A., Material Engineering Science Program
Alevtina Smirnova
Affiliation:
Department of Chemistry, South Dakota School of Mines and Technology, Rapid City, SD 57701, U.S.A., Material Engineering Science Program
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Abstract

The Transition metal oxides such as TiO2 and CeO2 as catalyst and co-catalyst materials were studied for methanol oxidation. The metal oxide nanoparticles were impregnated into carbon aerogel and Pt-Ru/C (Tanaka) by modified sol-gel Pechini method and heat-treated at different temperatures. Crystal structure, particle size and composition of the catalyst particles were studied using XRD, TEM and EDS techniques. The electrochemical activity and stability of these catalyst materials were studied in acidic medium and the results were compared to their corresponding specific and active surface areas. The aerogel supported metal oxides were stable and proved for better methanol oxidation, while a significant synergetic effect in electro-oxidation is observed when the metal oxides were impregnated into the structure of Pt-Ru/C catalyst. The methanol-oxidation was further improved after heat treatment due to its improved structural and surface properties.

Keywords

aerogelcatalyticnanostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1446: Symposium U – Materials for Catalysis in Energy , 2012 , mrss12-1446-u09-36
Copyright
Copyright © Materials Research Society 2012

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References

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