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Open AccessArticle

Desorption of Furfural from Bimetallic Pt-Fe Oxides/Alumina Catalysts

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Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Químicas, Ave. Universidad S/N, Cd. Universitaria, San Nicolás de los Garza, N.L. 64451, Mexico
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Universidad Autónoma Metropolitana Iztapalapa, Departamento de Ingeniería Química, Mexico, D.F. 09340, Mexico
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Universidad Autónoma de Nuevo León, UANL, Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología (CIIDIT), Km 10 de la nueva carretera al Aeropuerto Internacional de Monterrey, PIIT Monterrey, Apodaca, Nuevo León 66600, Mexico
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Author to whom correspondence should be addressed.
Materials 2014, 7(1), 527-541; https://doi.org/10.3390/ma7010527
Received: 14 October 2013 / Revised: 10 January 2014 / Accepted: 13 January 2014 / Published: 20 January 2014
(This article belongs to the Section Structure Analysis and Characterization)
In this work, the desorption of furfural, which is a competitive intermediate during the production of biofuel and valuable aromatic compounds, was studied using pure alumina, as well as alumina impregnated with iron and platinum oxides both individually and in combination, using thermogravimetric analysis (TGA). The bimetallic sample exhibited the lowest desorption percentage for furfural. High-resolution transmission electron microscopy (HRTEM) imaging revealed the intimate connection between the iron and platinum oxide species on the alumina support. The mechanism of furfural desorption from the Pt-Fe/Al2O3 0.5%-0.5% sample was determined using physisorbed furfural instead of chemisorbed furfural; this mechanism involved the oxidation of the C=O group on furfural by the catalyst. The oxide nanoparticles on γ-Al2O3 support helped to stabilize the furfural molecule on the surface. View Full-Text
Keywords: furfural; bimetallic; Pt-Fe; desorption; impregnation; γ-Al2O3 furfural; bimetallic; Pt-Fe; desorption; impregnation; γ-Al2O3
MDPI and ACS Style

Dimas-Rivera, G.L.; De la Rosa, J.R.; Lucio-Ortiz, C.J.; De los Reyes Heredia, J.A.; González, V.G.; Hernández, T. Desorption of Furfural from Bimetallic Pt-Fe Oxides/Alumina Catalysts. Materials 2014, 7, 527-541.

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