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A facile method for preparation of iron based catalysts for high temperature water gas shift reaction
Affiliation:1. Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan, Iran;2. Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan, Iran;1. Grupo de Estudios en Materiales y Combustibles, Campus San Pablo, Universidad de Cartagena, Cartagena, Colombia;2. Grupo de Investigación en Procesos de La Industria Petroquímica, SENA-Centro para La Industria Petroquímica, Cartagena, Colombia;3. Université de Lyon, Université Claude Bernard Lyon 1, CNRS - UMR 5256, IRCELYON 2, Avenue Albert Einstein, 69626, Villeurbanne Cedex, France;4. Laboratory for Catalytic Research, National Research Tomsk State University, 36 Lenin Avenue, Tomsk 634050, Russian Federation;5. Universidade Federal do Rio de Janeiro, Ilha do Fundão, 21941-909, Rio de Janeiro, Rio de Janeiro, Brazil;6. Universidade Federal de São Carlos, Rod. Washington Luiz, Km 235, 13565-905, São Carlos, São Paulo, Brazil;7. Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Agronomia, 90650-001, Porto Alegre, RS, Brazil;1. Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica – Instituto, Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain;2. Grupo de Materiales Avanzados y Energía, Facultad de Ingeniería, Instituto Tecnológico Metropolitano ITM, Apartado 54959, Medellín, Colombia;1. Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan, Iran;2. Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan, Iran;1. Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan, Iran;2. Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan, Iran
Abstract:Nanocrystalline Fe3O4 based catalysts with theoretical particle size of 31–78 nm were synthesized by a facile direct pyrolysis method and employed in high temperature water gas shift reaction. XRD analysis showed that this method led to obtaining the catalysts directly in the active phase with chromium and copper incorporated into magnetite lattice. The results showed that the addition of chromium significantly increases the BET surface area of the pure iron oxide from 14.87 to 35.42 m2 g−1. Among the catalysts evaluated, Fe–Cr–Cu catalyst revealed higher activity compared to commercial catalyst and showed high stability during 10 h time on stream.
Keywords:Pyrolysis  Nanocrystalline  Water-gas shift
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