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Roles of nano-sized Au in the reduction of NOx by propene over Au/TiO2: An in situ DRIFTS study

Paper ID Volume ID Publish Year Pages File Format Full-Text
47374 46470 2010 8 PDF Available
Title
Roles of nano-sized Au in the reduction of NOx by propene over Au/TiO2: An in situ DRIFTS study
Abstract

A mechanistic study of the selective catalytic reduction (SCR) of NOx by C3H6 has been investigated over nano-sized Au/TiO2 catalyst using in situ diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS). The formation and consumption of adsorbed species on the catalyst surface have been intensively studied during co-adsorption of reactants and reaction condition. The presence of nano-sized Au particles played an important role in the formation of oxygenated hydrocarbons, especially acetate species. Importantly, Au active sites were crucial to the formation of isocyanate intermediate compounds and contributed to the conversion of these intermediates to N2. The reaction mechanism of SCR over Au/TiO2 has been discussed on the basis of DRIFTS results.

Keywords
In situ DRIFTS; Nano-sized Au; Au/TiO2; Mechanism; SCR
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Roles of nano-sized Au in the reduction of NOx by propene over Au/TiO2: An in situ DRIFTS study
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 96, Issues 3–4, 7 June 2010, Pages 299–306
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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