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Entropy‐Driven Chemisorption of NO x on Phosphotungstic Acid
Author(s) -
Heylen Steven,
Joos Lennart,
ParacVogt Tatja.,
Van Speybroeck Veronique,
Kirschhock Christine E. A.,
Martens Johan A.
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201205636
Subject(s) - chemisorption , phosphotungstic acid , adsorption , entropy (arrow of time) , chemistry , molecule , nox , chemical physics , thermodynamics , physics , organic chemistry , catalysis , combustion
Free‐energy calculations indicated that the NO x adsorption process on heteropolyacids is entropy‐driven, as more gas molecules are released than adsorbed by substitution of H 5 O 2 + with NO + species. P yellow, W light blue, O red, H pink, N small dark blue spheres.