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곽자훈

Kwak, Ja Hun
Molecular Catalysis Lab.
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Promotional Effect of CO2 on Desulfation Processes for Pre-Sulfated Pt-BaO/Al2O3 Lean NOx Trap Catalysts

Alternative Title
Promotional Effect of CO2 on Desulfation Processes for Pre-Sulfated Pt-BaO/Al2O3 Lean NOx Trap Catalysts
Author(s)
Kim, Do HeuiKwak, JahunSzanyi, JanosWang, XianqinEngelhard, Mark H.Peden, Charles H. F.
Issued Date
2009-12-13
DOI
10.1007/s11244-009-9328-8
URI
https://scholarworks.unist.ac.kr/handle/201301/51648
Fulltext
http://link.springer.com/article/10.1007%2Fs11244-009-9328-8
Citation
8th Congress on Catalysis and Automotive Pollution Control (CAPoC8), v.52, no.13-20, pp.1719 - 1722
Abstract
A combination of H-2 TPRX, TR-XRD and XPS analysis has been used to investigate the effects of CO2 on the desulfation of pre-sulfated Pt-BaO/Al2O3 samples. The results demonstrate that the presence of CO2 promotes the removal of sulfur species, especially at temperatures below 500 degrees C, with a corresponding suppression of BaS formation, thus resulting in a lower amount of residual sulfur on the sample after desulfation.
Publisher
SPRINGER/PLENUM PUBLISHERS
ISSN
1022-5528

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