BROWSE

Related Researcher

Author's Photo

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

ITEM VIEW & DOWNLOAD

NO2 adsorption on BaO/Al2O3: The nature of nitrate species

Cited 98 times inthomson ciCited 93 times inthomson ci
Title
NO2 adsorption on BaO/Al2O3: The nature of nitrate species
Other Titles
NO2 adsorption on BaO/Al2O3: The nature of nitrate species
Author
Szanyi, Ja´nosKwak, JahunKim, Do HeuiBurton, Sarah D.Peden, Charles H. F.
Keywords
BARIUM OXIDE; FT-IR; STORAGE; CATALYSTS
Issue Date
2005-01
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY B, v.109, no.1, pp.27 - 29
Abstract
Temperature programmed desorption, infrared spectroscopy, and N-15 solid state NMR spectroscopy were used to characterize the nature of the nitrate species formed on Al2O3 and BaO/Al2O3 NOx storage/reduction materials. Two distinctly different nitrate species were found: surface nitrates that are associated with a monolayer BaO on the alumina support, and a bulk-like nitrate that forms on this thin BaO layer. The surface nitrates desorb as NO2 at lower temperatures than do the bulk-like nitrates, which decompose as NO+O-2 at higher temperatures. The amount of NOx stored in the monolayer nitrate is proportional to the surface area of the catalyst, while that in the bulk nitrate increases with BaO coverage
URI
Go to Link
DOI
10.1021/jp044993p
ISSN
1520-6106
Appears in Collections:
ECHE_Journal Papers
Files in This Item:
jp044993p.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU