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A study on HCHO oxidation characteristics at room temperature using a Pt/TiO2 catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
41599 45894 2011 8 PDF Available
Title
A study on HCHO oxidation characteristics at room temperature using a Pt/TiO2 catalyst
Abstract

The oxidation of HCHO at room temperature was studied on Pt/TiO2 catalysts prepared by wet impregnation. The catalytic activity was dependent on the type of the TiO2 support and HCHO feeding rate. The surface carbon monoxide species were the main intermediate for HCHO oxidation, which was examined using in situ DRIFTS. XPS analysis confirmed that the catalytic performance and valence states of the catalyst were closely related. However, XRD analysis showed that the number of active sites decreased due to Pt agglomeration during reduction treatment at temperatures higher than 873 K.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (158 K)Download as PowerPoint slideHighlights► The activity of Pt/TiO2 catalysts was determined by the type of TiO2. ► The reduced Pt sites (metallic Pt, Pt2+) play a key role in the mechanism in HCHO oxidation. ► HCHO conversion rate over optimum Pt/TiO2 catalyst was approximately 100%.

Keywords
HCHO; Pt/TiO2; Oxidation; Room temperature; Valence state
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A study on HCHO oxidation characteristics at room temperature using a Pt/TiO2 catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 398, Issues 1–2, 15 May 2011, Pages 96–103
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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