TiO2/ZnO mixed oxide catalysts, characterization by x-ray photoelectron and infrared-spectroscopy and reactions with propanol and butanol

Johannes A. Lercher; Hannelore Vinek; Heinrich Noller; Jerzy Stoch

doi:10.1016/S0166-9834(00)81669-3

TiO₂/ZnO mixed oxide catalysts, characterization by x-ray photoelectron and infrared-spectroscopy and reactions with propanol and butanol

Johannes A. Lercher, Hannelore Vinek, Heinrich Noller, Jerzy Stoch

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14 Scopus citations

Abstract

TiO₂/ZnO mixed oxide catalysts, prepared by hydrolysis of chlorides, were characterized by X-ray photoelectron and infrared spectroscopy as well as by catalytic elimination reactions of propanol and butanol. XPS measurements suggest one phase present in all oxides (ZnTiO₃), another only in oxides with 64 and 95 mole % ZnO. This unidentified phase is rather rich in ZnO, has oxygen of very high binding energy (Ols = 533 eV) and decomposes (or is modified) at temperatures above 500° C. I.r. adsorbate spectra of pyridine indicate that Ti⁴⁺ cations are mainly present on the surface of the ZnTiO₃ phase, Zn²⁺ on the surface of the other. The changes in product distribution of elimination reactions are discussed in terms of varying acid - base properties.

Original language	English
Pages (from-to)	293-307
Number of pages	15
Journal	Applied Catalysis
Volume	12
Issue number	4
DOIs	https://doi.org/10.1016/S0166-9834(00)81669-3
State	Published - 1984
Externally published	Yes

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title = "TiO2/ZnO mixed oxide catalysts, characterization by x-ray photoelectron and infrared-spectroscopy and reactions with propanol and butanol",

abstract = "TiO2/ZnO mixed oxide catalysts, prepared by hydrolysis of chlorides, were characterized by X-ray photoelectron and infrared spectroscopy as well as by catalytic elimination reactions of propanol and butanol. XPS measurements suggest one phase present in all oxides (ZnTiO3), another only in oxides with 64 and 95 mole % ZnO. This unidentified phase is rather rich in ZnO, has oxygen of very high binding energy (Ols = 533 eV) and decomposes (or is modified) at temperatures above 500° C. I.r. adsorbate spectra of pyridine indicate that Ti4+ cations are mainly present on the surface of the ZnTiO3 phase, Zn2+ on the surface of the other. The changes in product distribution of elimination reactions are discussed in terms of varying acid - base properties.",

author = "{A. Lercher}, Johannes and Hannelore Vinek and Heinrich Noller and Jerzy Stoch",

year = "1984",

doi = "10.1016/S0166-9834(00)81669-3",

language = "English",

volume = "12",

pages = "293--307",

journal = "Applied Catalysis",

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TY - JOUR

T1 - TiO2/ZnO mixed oxide catalysts, characterization by x-ray photoelectron and infrared-spectroscopy and reactions with propanol and butanol

AU - A. Lercher, Johannes

AU - Vinek, Hannelore

AU - Noller, Heinrich

AU - Stoch, Jerzy

PY - 1984

Y1 - 1984

N2 - TiO2/ZnO mixed oxide catalysts, prepared by hydrolysis of chlorides, were characterized by X-ray photoelectron and infrared spectroscopy as well as by catalytic elimination reactions of propanol and butanol. XPS measurements suggest one phase present in all oxides (ZnTiO3), another only in oxides with 64 and 95 mole % ZnO. This unidentified phase is rather rich in ZnO, has oxygen of very high binding energy (Ols = 533 eV) and decomposes (or is modified) at temperatures above 500° C. I.r. adsorbate spectra of pyridine indicate that Ti4+ cations are mainly present on the surface of the ZnTiO3 phase, Zn2+ on the surface of the other. The changes in product distribution of elimination reactions are discussed in terms of varying acid - base properties.

AB - TiO2/ZnO mixed oxide catalysts, prepared by hydrolysis of chlorides, were characterized by X-ray photoelectron and infrared spectroscopy as well as by catalytic elimination reactions of propanol and butanol. XPS measurements suggest one phase present in all oxides (ZnTiO3), another only in oxides with 64 and 95 mole % ZnO. This unidentified phase is rather rich in ZnO, has oxygen of very high binding energy (Ols = 533 eV) and decomposes (or is modified) at temperatures above 500° C. I.r. adsorbate spectra of pyridine indicate that Ti4+ cations are mainly present on the surface of the ZnTiO3 phase, Zn2+ on the surface of the other. The changes in product distribution of elimination reactions are discussed in terms of varying acid - base properties.

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U2 - 10.1016/S0166-9834(00)81669-3

DO - 10.1016/S0166-9834(00)81669-3

M3 - Article

AN - SCOPUS:0021522497

SN - 0166-9834

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JO - Applied Catalysis

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ER -

TiO₂/ZnO mixed oxide catalysts, characterization by x-ray photoelectron and infrared-spectroscopy and reactions with propanol and butanol

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