Theoretical assessment of the catalytic (Pt/TiO2) oxidation of formaldehyde at ambient temperature |
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Authors: | Raf Dewil Kim Everaert Jan Baeyens |
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Affiliation: | University of Antwerp, Department of Bio-engineering, Groenenborgerlaan 171, B-2020 Antwerp, Belgium |
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Abstract: | A recent article [C. Zhang, H. He, K. Tanaka, Catal. Commun. 6 (2005) 211] investigates the use of a Pt/TiO2 catalyst for the oxidation of formaldehyde. The findings demonstrate nearly complete oxidation at ambient temperature (25 °C) for values of the surface velocity in the range 5–10 × 104 h−1 and a 45% destruction when using a surface velocity of 20 × 104 h−1.In the present communication, this oxidation was assessed by theoretical considerations of the reaction kinetics. The destruction efficiency was predicted using a first-order reaction rate expression, combined with different theoretical or semi-empirical equations for the intrinsic reaction rate constant. Predicted and experimental data are in fair agreement, thus validating the theoretical approach and confirming the experimental results. |
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Keywords: | Formaldehyde Catalytic destruction Ambient temperature Theoretical approach |
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