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Influence of NO2 on the hydrolysis of isocyanic acid over TiO2

Paper ID Volume ID Publish Year Pages File Format Full-Text
49161 46561 2006 6 PDF Available
Title
Influence of NO2 on the hydrolysis of isocyanic acid over TiO2
Abstract

Investigation of the catalytic hydrolysis of isocyanic acid (HNCO) over TiO2 revealed that the rate of hydrolysis was considerably reduced in the presence of NO2 at temperatures below 200 °C. Transient low temperature investigations of the reaction, Temperature Programmed Desorption (TPD) experiments and Diffuse Reflectance Infrared Fourier Transform (DRIFT) investigations showed that part of the NO2 adsorbed strongly on the surface while part reacted with NH3 to form ammonium nitrate on the catalyst surface. Since at high temperatures NO2 was desorbed and NH4NO3 was decomposed, the catalytic activity was completely restored by thermal treatment at high temperature.

Keywords
Isocyanic acid; HNCO; Hydrolysis; NO2; NH4NO3; Ammonium nitrate; Urea; SCR
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Influence of NO2 on the hydrolysis of isocyanic acid over TiO2
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 65, Issues 3–4, 6 June 2006, Pages 169–174
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
100% Money Back Guarantee
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