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

Monika Radlik; Joanna Strzezik; Agnieszka Krowiak; Krzysztof Kozieł; Andrzej Krztoń; Wincenty Turek

doi:10.1007/s11144-015-0865-9

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

Monika Radlik
, Joanna Strzezik
, Agnieszka Krowiak
, Krzysztof Kozieł
, Andrzej Krztoń
, Wincenty Turek

Department of Physical Chemistry and Technology of Polymers (RCH/RCH4)

Silesian University of Technology
Polish Academy of Sciences

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The CuO/Ce_0,62Zr_0,38O₂ 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.

Original language	English
Pages (from-to)	741-758
Number of pages	18
Journal	Reaction Kinetics, Mechanisms and Catalysis
Volume	115
Issue number	2
DOIs	https://doi.org/10.1007/s11144-015-0865-9
Publication status	Published - 25 Aug 2015

Keywords

Acid properties
CuO/CeZrO
Redox properties

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

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10.1007/s11144-015-0865-9

Cite this

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

abstract = "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.",

keywords = "Acid properties, CuO/CeZrO, Redox properties",

author = "Monika Radlik and Joanna Strzezik and Agnieszka Krowiak and Krzysztof Kozie{\l} and Andrzej Krzto{\'n} and Wincenty Turek",

note = "Publisher Copyright: {\textcopyright} Akad{\'e}miai Kiad{\'o}, 2015.",

year = "2015",

month = aug,

day = "25",

doi = "10.1007/s11144-015-0865-9",

language = "English",

volume = "115",

pages = "741--758",

journal = "Reaction Kinetics, Mechanisms and Catalysis",

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TY - JOUR

T1 - Study of the acid and redox properties of copper oxide supported on ceria-zirconia in isopropyl and t-butyl alcohol conversion

AU - Radlik, Monika

AU - Strzezik, Joanna

AU - Krowiak, Agnieszka

AU - Kozieł, Krzysztof

AU - Krztoń, Andrzej

AU - Turek, Wincenty

PY - 2015/8/25

Y1 - 2015/8/25

N2 - 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.

AB - 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.

KW - Acid properties

KW - CuO/CeZrO

KW - Redox properties

UR - https://www.scopus.com/pages/publications/84948065730

U2 - 10.1007/s11144-015-0865-9

DO - 10.1007/s11144-015-0865-9

M3 - Article

AN - SCOPUS:84948065730

SN - 1878-5190

VL - 115

SP - 741

EP - 758

JO - Reaction Kinetics, Mechanisms and Catalysis

JF - Reaction Kinetics, Mechanisms and Catalysis

IS - 2

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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