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- 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
- Author(s)
- Kim, Do Heui, Kwak, Jahun, Szanyi, Janos, Wang, Xianqin, Engelhard, Mark H., Peden, Charles H.F.
- Issued Date
- 2009-07
- Citation
- TOPICS IN CATALYSIS, 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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