Eletro-oxidação de etanol sobre eletrocatalisadores PtRh/C, PtSn/C e PtSnRh/C preparados pelo método da redução por álcool
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Abstract
redução por álcool e caracterizados pelas técnicas de EDX, difração de raios X e voltametria cíclica.
A eletro-oxidação direta de etanol foi estudada por voltametria cíclica utilizando a técnica do eletrodo
de camada fina porosa. Na região de interesse para aplicações em células a combustível a etanol dire-
to (0,3 a 0,4 V) os eletrocatalisadores PtSn/C e PtSnRh/C se mostraram mais ativos que os eletro-
catalisadores PtRh/C.
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