Skip to main content

Preparation of CexZr1-xO2 with Combined Composition for Improved Pd-only Three-way Catalyst

Publication ,  Journal Article
Li, HM; Lan, L; Chen, SH; Liu, DY; Wang, W; Chen, YQ
Published in: Wuji Cailiao Xuebao/Journal of Inorganic Materials
July 1, 2018

Two special CeO2-ZrO2 composites with combined compositions were prepared by a simple sequential precipitation method. The effect of the combination styles on properties of the supported Pd-only three-way catalysts was investigated by means of X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), nitrogen adsorption/desorption, H2-temperature programmed reduction (H2-TPR), and oxygen storage capacity measurement (OSC). The results reveal that the structural and textural properties are modified for the two catalysts with compositional heterogeneity. Combined configuration facilitates the formation of Ce3+ and lattice defects, resulting in improved oxygen mobility, due to strong interaction between the noble metal and the support as well as the synergistic function inside the support. Consequently, the corresponding catalysts show amplified operation windows for the conversions of CO, C3H8 and NO before and after aging, indicating promising application in purification of automobile exhaust gases.

Duke Scholars

Published In

Wuji Cailiao Xuebao/Journal of Inorganic Materials

DOI

ISSN

1000-324X

Publication Date

July 1, 2018

Volume

33

Issue

7

Start / End Page

798 / 804

Related Subject Headings

  • Materials
  • 0904 Chemical Engineering
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Li, H. M., Lan, L., Chen, S. H., Liu, D. Y., Wang, W., & Chen, Y. Q. (2018). Preparation of CexZr1-xO2 with Combined Composition for Improved Pd-only Three-way Catalyst. Wuji Cailiao Xuebao/Journal of Inorganic Materials, 33(7), 798–804. https://doi.org/10.15541/jim20170387
Li, H. M., L. Lan, S. H. Chen, D. Y. Liu, W. Wang, and Y. Q. Chen. “Preparation of CexZr1-xO2 with Combined Composition for Improved Pd-only Three-way Catalyst.” Wuji Cailiao Xuebao/Journal of Inorganic Materials 33, no. 7 (July 1, 2018): 798–804. https://doi.org/10.15541/jim20170387.
Li HM, Lan L, Chen SH, Liu DY, Wang W, Chen YQ. Preparation of CexZr1-xO2 with Combined Composition for Improved Pd-only Three-way Catalyst. Wuji Cailiao Xuebao/Journal of Inorganic Materials. 2018 Jul 1;33(7):798–804.
Li, H. M., et al. “Preparation of CexZr1-xO2 with Combined Composition for Improved Pd-only Three-way Catalyst.” Wuji Cailiao Xuebao/Journal of Inorganic Materials, vol. 33, no. 7, July 2018, pp. 798–804. Scopus, doi:10.15541/jim20170387.
Li HM, Lan L, Chen SH, Liu DY, Wang W, Chen YQ. Preparation of CexZr1-xO2 with Combined Composition for Improved Pd-only Three-way Catalyst. Wuji Cailiao Xuebao/Journal of Inorganic Materials. 2018 Jul 1;33(7):798–804.

Published In

Wuji Cailiao Xuebao/Journal of Inorganic Materials

DOI

ISSN

1000-324X

Publication Date

July 1, 2018

Volume

33

Issue

7

Start / End Page

798 / 804

Related Subject Headings

  • Materials
  • 0904 Chemical Engineering