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Catalytic oxidation of NO over TiO2 supported platinum clusters I. Preparation, characterization and catalytic properties

Paper ID Volume ID Publish Year Pages File Format Full-Text
47614 46478 2010 8 PDF Available
Title
Catalytic oxidation of NO over TiO2 supported platinum clusters I. Preparation, characterization and catalytic properties
Abstract

The oxidation of NO to NO2 was studied on Pt/TiO2 catalysts prepared by wet impregnation and photo-deposition method. Pt/TiO2 prepared by photo-deposition exhibited quite higher activity for NO oxidation to NO2 than that prepared by wet impregnation and over 90% NO conversion could be achieved at below 250 °C at a high GHSV of 180,000 h−1. The effects of catalysts pretreatment conditions and feed gas composition, i.e. SO2 and H2O in the stream, on NO oxidation were investigated in details. The different Pt/TiO2 samples were characterized by means of X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) techniques. The Pt-TiO2 electron-interaction was studied based on the characterization results and the role of Pt-TiO2 electron-interaction on the catalytic performance of Pt/TiO2 was further discussed.

Keywords
Electron-interaction; Nitric oxide; Oxidation; Photo-deposition; Pt/TiO2
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Catalytic oxidation of NO over TiO2 supported platinum clusters I. Preparation, characterization and catalytic properties
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 93, Issues 3–4, 12 January 2010, Pages 259–266
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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