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Type: Artigo de periódico
Title: Preparation, Structural Characterization And Catalytic Properties Of Co/ceo 2 Catalysts For The Steam Reforming Of Ethanol And Hydrogen Production
Author: Lovon A.S.P.
Lovon-Quintana J.J.
Almerindo G.I.
Valenca G.P.
Bernardi M.I.B.
Araujo V.D.
Rodrigues T.S.
Robles-Dutenhefner P.A.
Fajardo H.V.
Abstract: In this paper, Co/CeO 2 catalysts, with different cobalt contents were prepared by the polymeric precursor method and were evaluated for the steam reforming of ethanol. The catalysts were characterized by N 2 physisorption (BET method), X-ray diffraction (XRD), UV-visible diffuse reflectance, temperature programmed reduction analysis (TPR) and field emission scanning electron microscopy (FEG-SEM). It was observed that the catalytic behavior could be influenced by the experimental conditions and the nature of the catalyst employed. Physical-chemical characterizations revealed that the cobalt content of the catalyst influences the metal-support interaction which results in distinct catalyst performances. The catalyst with the highest cobalt content showed the best performance among the catalysts tested, exhibiting complete ethanol conversion, hydrogen selectivity close to 66% and good stability at a reaction temperature of 600 °C. © 2012 Elsevier B.V.
Citation: Journal Of Power Sources. , v. 216, n. , p. 281 - 289, 2012.
Rights: fechado
Identifier DOI: 10.1016/j.jpowsour.2012.05.066
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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