Synthesis and characterization of Ni-Cu/ZrO2 and Co-Cu/ZrO2 catalysts used for ethanol steam reforming
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2005
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INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 5th
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Zirconia has received much attention as catalysts for its high surface area and
acid-base property. The textural and acid-base properties of ZrO2 depend on both, the
synthesis procedure and the calcinations temperature. The aim of the present study is the
preparation and characterization of nickel/cupper/zirconia and cobalt/cupper/zirconia
microspheres using hydrolysis process. This process is based on homogeneous hydrolysis
of droplets of a concentrated ZrO2(NO3)2-urea solution after adding hexamethyletetramine.
Gelation was conduced successfully and the gel spheres were dried at 80 ºC. The dried gel
spheres were thermally treated at 550 ºC. Characterization of the samples was performed
using X-ray diffraction (XRD), BET nitrogen adsorption, scanning electron microscopy
(SEM), thermogravimetric (TGA) and UV-Vis spectroscopy. The performance of the
microspheres was investigated as catalysts in steam reforming of ethanol. Theses catalysts
exhibit a good selectivity for hydrogen.
Como referenciar
BERGAMASCHI, V.S.; CARVALHO, F.M.S.; SANTOS, W.R.; RODRIGUES, C. Synthesis and characterization of Ni-Cu/ZrO2 and Co-Cu/ZrO2 catalysts used for ethanol steam reforming. In: INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 5th, Oct. 26-29, 2005, Costa do Sauipe, BA. Proceedings... Disponível em: http://repositorio.ipen.br/handle/123456789/18363. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.