P-Tu-121 Nitrate formation/decomposition on Ba-, and K-based model LNT catalysts: similarities and differences

Tuesday, June 7, 2011
Ontario Exhibit Hall (Detroit Marriott Hotel at the Renaissance Center )
Do Heui Kim1, Kumudu Mudiyanselage2, JŠnos Szanyi1, Ja Hun Kwak1, Haiyang Zhu1 and Charles H.F. Peden1, (1)Institute for Interfacial Catalysis, Pacific Northwest National Laboratory, Richland, WA, (2)Pacific Northwest National Laboratory, Richland, WA
 This work provides a fundamental understanding of NOx storage/release mechanisms on Ba- and K-based LNT catalysts.  It is found that although both the Ba- and K-based model LNT catalysts store NO2 as nitrates, there are significant differences in the decomposition pathways and morphology changes between these two families of materials.

Extended Abstracts: