Exposure of NO2-saturated BaO/?-Al2O3 NOx storage materials to H2O vapour results in the conversion of surface nitrates to Ba(NO3)2 crystallites, causing dramatic morphological changes in the Ba-containing phase, demonstrating a role for water in affecting the NOx storage/reduction properties of these materials.
Revised: April 1, 2008 |
Published: March 7, 2007
Citation
Szanyi J., J. Kwak, D. Kim, X. Wang, J. Hanson, R.J. Chimentao, and C.H. Peden. 2007.Water-induced morphology changes in BaO/?-Al2O3 NOx storage materials.Chemical Communications 2007, no. 9:984-986.PNNL-SA-53004.doi:10.1039/b613674e