Titania-Supported Vanadium Oxide Synthesis by Atomic Layer Deposition and Its Application for Low-Temperature Oxidative Dehydrogenation of Propane

Titania-Supported Vanadium Oxide Synthesis by Atomic Layer Deposition and Its Application for Low-Temperature Oxidative Dehydrogenation of Propane

Vanadium oxide supported on TiO 2 (P25) catalysts were synthesized via atomic layer deposition (ALD) of vanadyl acetylacetonate (VO(acac) 2 ). Comprehensive investigations were performed to evaluate the ALD temperature window and the saturation deposition period of VO(acac) 2 , which were found to b...

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Veröffentlicht in:Catalysis letters 2020-10, Vol.150 (10), p.2807-2822
Hauptverfasser: Kazerooni, Hossein, Towfighi Darian, Jafar, Mortazavi, Yadollah, Khadadadi, Abbas Ali, Asadi, Reza
Format: Artikel
Sprache:eng
Schlagworte:
Acetone
Atomic layer epitaxy
Catalysis
Catalysts
Chemical synthesis
Chemisorption
Chemistry
Chemistry and Materials Science
Comparative analysis
Dehydrogenation
Dispersion
Impregnation
Industrial Chemistry/Chemical Engineering
Low temperature
Organometallic Chemistry
Physical Chemistry
Propane
Titanium dioxide
Vanadium
Vanadium oxides
X ray photoelectron spectroscopy
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Zusammenfassung:Vanadium oxide supported on TiO 2 (P25) catalysts were synthesized via atomic layer deposition (ALD) of vanadyl acetylacetonate (VO(acac) 2 ). Comprehensive investigations were performed to evaluate the ALD temperature window and the saturation deposition period of VO(acac) 2 , which were found to be 140–210 °C and 120 min, respectively. The synthesized catalysts were compared to their corresponding impregnation ones for the oxidative dehydrogenation of propane reaction (ODH-P). The ODH-P results indicated the superior performance of the ALD catalysts for the low temperature ODH-P (
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-020-03189-w