Room temperature selective (photo) catalytic oxidation of ethanol to acetaldehyde over Pt/WO3

کد مقاله : 1220-PHYCHEM23

نویسندگان

رضوانه امراللهی بیوکی * دانشگاه علم و صنعت

چکیده مقاله

Oxidation of ethanol to acetaldehyde is of relevance to synthetic chemistry and development of sensors for detection of gas phase ethanol. It is demonstrated by gas phase analysis and DRIFTS spectroscopy that a Pt/WO3 composite shows significant activity in oxidative dehydrogenation of ethanol to acetaldehyde at room temperature. The oxidation state of the most active Pt particles is determined to be Pt0, rather than PtO, by studying variations in catalyst preparation methodology, and characterization of various samples by X-ray photoelectron spectroscopy. Illumination has very little effect on surface reactivity and selectivity, but promotes formation of gas phase acetaldehyde.

کلیدواژه ها

Photocatalyst, Selective oxidation, Nano materials, Pt/WO3

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