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곽자훈

Kwak, Ja Hun
Molecular Catalysis Lab.
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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

Alternative Title
Understanding practical catalysts using a surface science approach: The importance of strong interaction between BaO and Al2O3 in NOx storage materials
Author(s)
Yi, Cheol-WooKwak, JahunPeden, Charles H. F.Wang, ChongminSzanyi, Janos
Issued Date
2007-10
DOI
10.1021/jp0763376
URI
https://scholarworks.unist.ac.kr/handle/201301/12129
Fulltext
http://pubs.acs.org/doi/abs/10.1021/jp0763376
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
Publisher
AMER CHEMICAL SOC
ISSN
1932-7447
Keyword
BARIUM OXIDECHEMISORPTIVE PROPERTIESMODEL CATALYSTSNSR CATALYSTSMETAL-FILMSADSORPTIONPARTICLESREACTIVITYBAO/AL2O3

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