Catalytic activity of cobalt and cerium catalysts supported on calcium hydroxyapatite in ethanol steam reforming

• Autorzy: Dobosz J. , Hull S. , Zawadzki M.

Identyfikatory

DOI

10.1515/pjct-2016-0049

• Języki publikacji: EN

Abstrakty

EN

In this paper, Co,Ce/Ca₁₀(PO₄)₆(OH)₂ catalysts with various cobalt loadings for steam reforming of ethanol (SRE) were prepared by microwave-assisted hydrothermal and sol-gel methods, and characterized by XRD, TEM, TPR-H₂, N₂ adsorption-desorption measurements and cyclohexanol (CHOL) decomposition tests. High ethanol conversion (close to 100%) was obtained for the catalysts prepared by both methods but these ones prepared under hydrothermal conditions (HAp-H) ensured higher hydrogen yield (3.49 mol H₂/mol C₂H₅OH) as well as higher amount of hydrogen formed (up to 70%) under reaction conditions. The superior performance of 5Co,10Ce/HAp-H catalyst is thought to be due to a combination of factors, including increased reducibility and oxygen mobility, higher density of basic sites on its surface, and improved textural properties. The results also show a significant effect of cobalt loading on catalysts efficiency in hydrogen production: the higher H₂ yield exhibit catalysts with lower cobalt content, regardless of the used synthesis method.

Słowa kluczowe

EN

hydroxyapatite; cobalt; cerium; ethanol steam reforming; hydrogen production

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2016
• Tom: Vol. 18, nr 3
• Strony: 59--67
• Opis fizyczny: Bibliogr. 42 poz., rys., tab.

Twórcy

autor

Dobosz J.

• Polish Academy of Sciences, Institute of Low Temperature and Structure Research, Department of Nanomaterials Chemistry and Catalysis, PO Box 1410, 50-950 Wroclaw, Poland

autor

Hull S.

• Wroclaw University of Technology, Division of Chemistry and Technology Fuels, Gdanska 7/9, 50-344 Wrocław, Poland

autor

Zawadzki M.

• Polish Academy of Sciences, Institute of Low Temperature and Structure Research, Department of Nanomaterials Chemistry and Catalysis, PO Box 1410, 50-950 Wroclaw, Poland

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.