Heylen, S

Joos, Lennart

Kirschhock, C

Martens, JA

Parac-Bogt, T

Van Speybroeck, Veronique

English

Ghent University Academic Bibliography

Mechanism of NOx Chemisorption on Solid Phosphotungstic Acid  S. Heylen1, L. Joos2, V. Van Speybroeck2, C.E.A. Kirschhock1, T. Parac-Vogt3, J.A. Martens1   1. Center for Surface Chemistry and Catalysis, Katholieke Universiteit Leuven,  Kasteelpark Arenberg 23, 3001 Leuven, Belgium 2. Center for Molecular Modeling, Ghent University,  Technologiepark 903, 9052 Zwijnaarde, Belgium 3. Molecular Design and Synthesis, Department of Chemistry Katholieke Universiteit Leuven, Celestijnenlaan 200f-bus2404 3001 Heverlee Leuven, Belgium  lennart.joos@ugent.be    Nitrogen oxides (NOx) -mostly caused by the combustion of fuels- contribute to the formation of ozon, smog and acid rain. Therefore, it is desired to remove them from the exhaust gases. Phosphotungstic acid is a selective NOx adsorbent with high adsorption capacity that could be used for this purpose.   A variety of experimental and computational approaches - including ex-situ and in-situ  X-ray diffraction, neutron diffraction, NMR and DFT calculations - determined the nature of the chemisorbed NOx species and elucidated the reaction behavior. This knowledge will allow optimization of the adsorbent material for application in after-treatment systems for NOx elimination.        NOx adsorption is favorable at high temperatures, whereas desorption occurs at lower temperature. A combination of experiments and DFT calculations elucidated this behavior.  

Mechanism of NOx Chemisorption on Solid Phosphotungstic Acid

https://biblio.ugent.be/publication/2977856/file/2977857.pdf

Mechanism of NOx Chemisorption on Solid Phosphotungstic Acid

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Ghent University Academic Bibliography