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https://doi.org/10.1016/j.cattod.2004.08.014
Title: | Novel nanocrystalline Ga-Al-Zn complex oxide: Catalyst for simultaneous treatment of NPAC and lean NOx | Authors: | Shen, S.C. Hidajat, K. Yu, L.E. Kawi, S. |
Keywords: | Complex-oxide DeNOx DeNPAC Environmental catalysis Nanocrystalline |
Issue Date: | 1-Dec-2004 | Citation: | Shen, S.C., Hidajat, K., Yu, L.E., Kawi, S. (2004-12-01). Novel nanocrystalline Ga-Al-Zn complex oxide: Catalyst for simultaneous treatment of NPAC and lean NOx. Catalysis Today 98 (3 SPEC. ISS.) : 387-392. ScholarBank@NUS Repository. https://doi.org/10.1016/j.cattod.2004.08.014 | Abstract: | Nanocrystalline Ga-Al-Zn complex-oxide (designated here as nano-GAZ) has been successfully synthesized using hydrothermal method. Using TEM, BET, FTIR, DTA-TGA, and XRD, synthesized nano-GAZ particles are shown as high-surface-area nanoparticles comprising typical spinel crystal structures. The nano-GAZ catalyst was tested as a new deNPAC catalyst, using pyridine as the model NPAC compound. The reaction results show that pyridine could be completely oxidized over nano-GAZ catalyst above 400 °C. Furthermore, NO formation was significantly decreased due to the excellent performance of the nano-GAZ catalyst for the selective catalytic reduction of NOX with hydrocarbon in the presence of excess oxygen. An optimal reaction temperature at around 440-500 °C was observed to achieve complete catalytic oxidation of pyridine with the lowest NOx formation. These results demonstrate a promising approach for dual-mitigation of NPAC and NOX pollutants using nano-GAZ catalyst. © 2004 Elsevier B.V. All rights reserved. | Source Title: | Catalysis Today | URI: | http://scholarbank.nus.edu.sg/handle/10635/90647 | ISSN: | 09205861 | DOI: | 10.1016/j.cattod.2004.08.014 |
Appears in Collections: | Staff Publications |
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