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Kwak, Ja Hun
Molecular Catalysis lab
Research Interests
  • Heterogeneous catalysis, molecular catalysis, ASlumima, zeolites

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Understanding practical catalysts using a surface science approach: The importance of strong interaction between BaO and Al2O3 in NOx storage materials

Cited 31 times inthomson ciCited 30 times inthomson ci
Title
Understanding practical catalysts using a surface science approach: The importance of strong interaction between BaO and Al2O3 in NOx storage materials
Other Titles
Understanding practical catalysts using a surface science approach: The importance of strong interaction between BaO and Al2O3 in NOx storage materials
Author
Yi, Cheol-WooKwak, JahunPeden, Charles H. F.Wang, ChongminSzanyi, Janos
Keywords
BARIUM OXIDE; CHEMISORPTIVE PROPERTIES; MODEL CATALYSTS; NSR CATALYSTS; METAL-FILMS; ADSORPTION
Issue Date
2007-10
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY C, v.111, no.41, pp.14942 - 14944
Abstract
The interaction of NO2 with BaO/Al2O3/NiAl(110) model NOx storage materials was investigated at BaO coverages corresponding, to practical systems. The results obtained from these model systems show excellent correlation with those of practical systems. We found a specific, strong interaction between BaO and Al2O3, and this interaction profoundly influences the NOx, chemistry. BaO readily forms a Ba-aluminate-like surface phase, and upon the interaction with NOx, Ba ions are pulled out from this surface layer to form Ba(NO3)(2) clusters
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DOI
10.1021/jp0763376
ISSN
1932-7447
Appears in Collections:
ECHE_Journal Papers
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