Submit your paper 
Download Template JOURNAL DETAIL
Effect of Cerium Oxide and Zirconium Oxide to Activity of Catalysts
Paper Type  |
Contributed Paper |
Title |
Effect of Cerium Oxide and Zirconium Oxide to Activity of Catalysts |
Author |
Akkarat Wongkaew |
Email |
akkarat@buu.ac.th |
|
Abstract: In this work, the activities of platinum over alumina promoted with cerium oxide and zirconium oxide were investigated. Each support contained various weight percents of cerium oxide and zirconium oxide to alumina was prepared by sol gel method. The weight percent of cerium oxide to zirconium oxide was kept constant at 60 to 40. Specific surface areas of each support were measured. It was found that the addition of 20%CeO2 -ZrO2 in alumina support offered the highest specific surface area of 215 m2/g. Furthermore, crystalline phase and size of mixed oxide were determined by XRD. XRD results also showed that Ce2Zr2O7 was formed in the support. The amount of cerium oxide, zirconium oxide and alumina had a strong effect to their crystalline size in the final form. Then, each support was impregnated with 1%Pt loading and tested its activity to CO oxidation reaction. The results showed that T1/2 of each catalyst was 210oC, 139oC, 145oC, 150oC and 261oC for a 1%Pt/ Al2O3 , a 1%Pt/20%CeO2-ZrO2 /Al2O3 , a 1%Pt/40%CeO2-ZrO2 /Al2O3 a 1%Pt/60%CeO2-ZrO2 /Al2O3 and a 1%Pt/CeO2-ZrO2 , respectively. The enhancement of activity of platinum over alumina catalyst resulted from an oxygen storage property of cerium oxide together with zirconium oxide. Finally, the 1%Pt/40%CeO2-ZrO2 /Al2O3 has showed the best activity to CO oxidation.
|
|
Start & End Page |
156 - 162 |
Received Date |
2007-09-25 |
Revised Date |
|
Accepted Date |
2007-11-16 |
Full Text |
Download |
Keyword |
CO oxidation, promoter, cerium oxide, zirconium oxide, oxygen storage |
Volume |
Vol.35 No.1 (JANUARY 2008) |
DOI |
|
Citation |
Wongkaew A., Effect of Cerium Oxide and Zirconium Oxide to Activity of Catalysts, Chiang Mai Journal of Science, 2008; 35(1): 156-162. |
SDGs |
|
| View:635 Download:247 | |
RELATED ARTICLE
A Model for Pharmaceutical Proteins Production from Arabidopsis Suspension Culture
page: 1028 - 1039
Author:Pasama Boonyanan, Sumeth Imsoonthornruksa, Georg Seifert and Mariena Ketudat Cairns
Vol.49 No.4 (July 2022) View: 1,149 Download:322
page: 1028 - 1039
Author:Pasama Boonyanan, Sumeth Imsoonthornruksa, Georg Seifert and Mariena Ketudat Cairns
Vol.49 No.4 (July 2022) View: 1,149 Download:322
Catalytic Activity of Bimetallic Au@Pt Core-Shell Over CeO2-Al2O3 for CO Oxidation Reaction
page: 278 - 287
Author:Wichet Lamai and Akkarat Wongkaew*
Vol.47 No.2 (Special Issue I : March 2020) View: 1,529 Download:667
page: 278 - 287
Author:Wichet Lamai and Akkarat Wongkaew*
Vol.47 No.2 (Special Issue I : March 2020) View: 1,529 Download:667
Unfolded Protein Response (UPR) Induced Hybrid Promoters for Heterologous Gene Expression in Pichia pastoris
page: 2554 - 2565
Author:Niwed Kullawong, Sutipa Tanapongpipat, Lily Eurwilaichitr and Witoon Tirasophon
Vol.45 NO.7 (November 2018) View: 707 Download:434
page: 2554 - 2565
Author:Niwed Kullawong, Sutipa Tanapongpipat, Lily Eurwilaichitr and Witoon Tirasophon
Vol.45 NO.7 (November 2018) View: 707 Download:434
Characterization of Phosphate Solubilizing Streptomyces as a Biofertilizer
page: 701 - 716
Author:Mathurot Chaiharn*, Wasu Pathom-aree, Nikhom Sujada and Saisamorn Lumyong
Vol.45 No.2 (March 2018) View: 739 Download:369
page: 701 - 716
Author:Mathurot Chaiharn*, Wasu Pathom-aree, Nikhom Sujada and Saisamorn Lumyong
Vol.45 No.2 (March 2018) View: 739 Download:369
Copyrights © Since 2021 All Rights Reserved by Chiang Mai Journal of Science