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Case Study: Effect of Zirconium on the Textural and Catalytic Properties of Magnetite

Case Study: Effect of Zirconium on the Textural and Catalytic Properties of Magnetite

Maria do Carmo Rangel, Amalia Luz Costa Pereira, Gustavo Marchetti, Peterson Santos Querino, Alberto Albornoz
Copyright: © 2018 |Pages: 26
ISBN13: 9781522539032|ISBN10: 1522539034|EISBN13: 9781522539049
DOI: 10.4018/978-1-5225-3903-2.ch008
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MLA

Rangel, Maria do Carmo, et al. "Case Study: Effect of Zirconium on the Textural and Catalytic Properties of Magnetite." Advanced Solid Catalysts for Renewable Energy Production, edited by Sergio González-Cortés and Freddy Emilio Imbert, IGI Global, 2018, pp. 216-241. https://doi.org/10.4018/978-1-5225-3903-2.ch008

APA

Rangel, M. D., Pereira, A. L., Marchetti, G., Querino, P. S., & Albornoz, A. (2018). Case Study: Effect of Zirconium on the Textural and Catalytic Properties of Magnetite. In S. González-Cortés & F. Imbert (Eds.), Advanced Solid Catalysts for Renewable Energy Production (pp. 216-241). IGI Global. https://doi.org/10.4018/978-1-5225-3903-2.ch008

Chicago

Rangel, Maria do Carmo, et al. "Case Study: Effect of Zirconium on the Textural and Catalytic Properties of Magnetite." In Advanced Solid Catalysts for Renewable Energy Production, edited by Sergio González-Cortés and Freddy Emilio Imbert, 216-241. Hershey, PA: IGI Global, 2018. https://doi.org/10.4018/978-1-5225-3903-2.ch008

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Abstract

The effect of zirconium on the textural and catalytic properties of magnetite for the water gas shift reaction (WGSR) at high temperatures was studied in this chapter. The reaction is an important step in the industrial production of pure hydrogen. Samples with different amounts of zirconium (Zr/Fe (molar)= 0.1; 0.2;0.3; 0.4 and 0.5) were prepared from the decomposition of iron(III)hydroxoacetate doped with zirconium. It was found that zirconium increased the specific surface area of magnetite acting as spacer on the surface where it keeps the particles apart. Except for the zirconium-poorest solid, tetragonal zirconia was detected besides magnetite for all solids. Zirconium increased the intrinsic activity of the catalysts, stabilized the specific surface areas during reaction, and made the magnetite reduction to metallic iron more difficult. The zirconium-poorest is more active than magnetite and more resistant against deactivation by sintering and overreduction being attractive for WGSR.

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