Study of the acid and redox properties of copper oxide supported on ceria–zirconia in isopropyl and t-butyl alcohol conversion

Autor:	Agnieszka Krowiak, Monika Radlik, Joanna Strzezik, Wincenty Turek, Andrzej Krztoń, Krzysztof Kozieł
Rok vydání:	2015
Předmět:	chemistry.chemical_compound chemistry Inorganic chemistry Acetone Alcohol Dehydrogenation Isopropyl alcohol Physical and Theoretical Chemistry Redox Catalysis Incipient wetness impregnation Isopropyl
Zdroj:	Reaction Kinetics, Mechanisms and Catalysis. 115:741-758
ISSN:	1878-5204 1878-5190
DOI:	10.1007/s11144-015-0865-9
Popis:	The CuO/Ce0,62Zr0,38O2 catalysts with different Cu loading were prepared by incipient wetness impregnation. The amount of Cu was 2, 4, 10 wt%. The samples were characterized by X-ray diffraction, scanning electron microscopy (SEM/EDX), N2 adsorption and Raman spectroscopy. The acid and redox properties of these catalysts were evaluated by isopropyl and t-butyl alcohol conversion. The isopropyl alcohol conversion showed that all Cu/CZ catalysts possessed higher activity than pure CuO and unmodified CZ support in dehydrogenation to acetone. The strong interaction of the active phase with the support is responsible for this rise of activity. Conversion of t-butyl alcohol confirmed the presence of acid centres. It was found that the increase in the activity of Cu/CZ catalysts compared with the unmodified CZ support is caused by the CuO active phase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8bd80df495ff684270f6a78bbe6a60af https://doi.org/10.1007/s11144-015-0865-9 Zobrazit plný text záznamu Full text from SpringerLink