TITLE

PtRuC/CeO2 KOMPOZİT ELEKTRO-KATALİZÖRLERİNİN KARBON MONOKSİT VE ETANOL ELEKTRO-OKSİDASYON AKTİVİTESİNİN BELİRLENMESİ

AUTHOR(S)
TAPAN, Niyazi Alper; ZHUMATAYEVA, Uldana; GÖKKAYA, Ekin
PUB. DATE
December 2013
SOURCE
Journal of the Faculty of Engineering & Architecture of Gazi Uni;Dec2013, Vol. 28 Issue 4, p819
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this study, cerium oxide nano-rods were synthesized by hydrothermal method in order to develop electrocatalysts for direct ethanol fuel cells. Carbon monoxide (CO) and ethanol electro-oxidation activities of PtRuC catalyst supported onto cerium oxide prepared by hydrothermal method (CeO2(HT)) were compared with PtRuC supported onto cerium oxide prepared by direct calcination (CeO2(K)) of ammonium cerium nitrate ((NH4)2[Ce(NO3)6]). After surface analysis of (CeO2(HT)) by scanning electron microscopy, non-uniform nanorods with approximately 1 m length and 200nm radius were observed. On the other hand, cerium oxide prepared by calcination has a particle structure in 400nm size approximately. According to results obtained by energy dispersive X-ray spectroscopy, CeO2(HT) has substantially higher oxygen stoichiometry than CeO2(K). After electrochemical analysis, it was seen that %10PtRuC/(CeO2(HT)) has the highest CO and ethanol electrooxidation activity.
ACCESSION #
93433023

 

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