INVESTIGADORES
CADUS Luis Eduardo
artículos
Título:
PEROVSKITES USED AS PRECURSORS OF NICKEL BASED CATALYSTS FOR ETHANOL STEAM REFORMING
Autor/es:
AGUERO FABIOLA N; MORALES MARIA ROXANA; LOPEZ EDUARDO; IZURIETA EDUARDO; CADUS LUIS E.
Revista:
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2015 vol. 40 p. 15510 - 15520
ISSN:
0360-3199
Resumen:
On the search of new design procedures for high performance catalysts we have obtained avery precisely defined surface architecture starting from a particular host structure. In thiscase, high purity La1xCaxAl1yNiyO3 (x ¼ 0, 0.1; y ¼ 0.1, 0.2, 0.3) perovskites were chosen,prepared by the citrate method and evaluated in the ethanol steam reforming reaction. Thesamples were characterized by X-ray diffraction (XRD), specific surface area measurements,X-ray photoelectron spectroscopy (XPS), X-ray absorption near-edge structure(XANES) and extended X-ray adsorption fine structure (EXAFS), temperature-programmedreduction (TPR) and Hydrogen Chemisorption. All the samples presented an excellentcatalytic activity and stability. Exceptionally high H2 yield values and low CO and CH4selectivities were observed. Perovskite without the addition of Ca and with a value ofy ¼ 0.2 presented the highest stability during 12 h on stream.
