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Current Catalysis

Editor-in-Chief

ISSN (Print): 2211-5447
ISSN (Online): 2211-5455

Zr-supported CuFe2O4 Nanoparticles as Catalysts for the Combustion of Propane

Author(s): Araceli Lavat, Julia E. Tasca, Claudia E. Quincoces, Ana M. Alvarez and M.Gloria Gonzalez

Volume 2, Issue 2, 2013

Page: [137 - 150] Pages: 14

DOI: 10.2174/2211544711302020008

Price: $65

Abstract

The nanoparticles of CuFe2O4, with spinel structure, supported over ZrO2 and sulphated ZrO2, were obtained by the precursor citrate route. The supported catalysts, containing a ferrite/support ratio of 30%, were thermally treated within the range 150 -700°C, characterized by XRD, TPR, FTIR, SEM-EDX, TEM and Mössbauer spectroscopy. The propane combustion was performed as a reaction test and the influence of the thermal treatment was analyzed. Despite the differences in the physico-chemical characteristics of the Zr supports, both supported CuFe2O4 catalysts, containing 30% loading and treated at 400°C, behave as active catalysts for propane combustion of similar efficiency. Furthermore, catalytic activity decreases upon heating, mainly due to crystal growth and, in ZS supported samples due to a change in the structure of the support caused by desulphation at around 600°C. The effect of surface available cations is discussed according to Mossbauer spectra.

Keywords: HC combustion, CuFe2O4 catalysts, Zr-supports, citrate route, structure, microstructure, spectroscopy.


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