The Effect of Substrate Volume on the Catalytic Behavior of Pd/Rh Three-Way Catalysts

Wei Jun Zhang; Jin Hu; You Yan Duan; Yun Biao Duan; Lin Su; Na Zhao

doi:10.4028/www.scientific.net/AMR.624.295

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 624The Effect of Substrate Volume on the Catalytic...

The Effect of Substrate Volume on the Catalytic Behavior of Pd/Rh Three-Way Catalysts

Abstract:

In this paper, Pd/Rh series catalyst substrate samples were prepared at the same cell density, with different volume. The fresh catalyst aging treatment. And Catalyst test by light-off factor (LOF). The results tested demonstrated that, for the same cell density of substrate, the increase of substrate volume benefited to obtain lower light-off temperature. It was effective measurement that higher cell density enlarged the operating window of catalyst. When the volume of substrate increased by 40%, catalyst light-off temperature decreased 5～10°C, the range of the air-fuel ratio is enlarged in 0.43. And it is role equivalent to the density of the cell density in additive quantity of 50% or Pd/Rh in additive quantity of 20%.

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Periodical:

Advanced Materials Research (Volume 624)

Pages:

295-298

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.624.295

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Online since:

December 2012

Authors:

Wei Jun Zhang, Jin Hu, You Yan Duan, Yun Biao Duan, Lin Su, Na Zhao

Keywords:

Catalyst, LOF, Substrate Volume

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References

[1] Y. Fang, Y. Yao. The oxidation of CO and hydrocarbons over noble metal catalysts. J. Catal, 1984, 87 (1): 152~162.

DOI: 10.1016/0021-9517(84)90178-7

Google Scholar

[2] P. S. Lambrou, C. N. Costa, S. Y. Christou, et al. Dynamics of oxygen storage and release on commercial aged Pd-Rh catalysts and characterization by transient experiments. Applied Catalysis B: Environmental, 2004, 54: 237~250.

DOI: 10.1016/j.apcatb.2004.06.018

Google Scholar

[3] J. L. Gland, E. B. Kollin. Carbon monoxide oxidation on the Pt (111) surface: Temperature programmed reaction of coadsorbed atomic oxygen and carbon monoxide. J. Chem. Phys, 1983, 78: 963~975.

DOI: 10.1063/1.444801

Google Scholar

[4] T. Bunluesin, R. J. Gorte, G. W. Graham. Studies of the water-gas-shift reaction on ceria-supported Pt, Pd, and Rh: Implications for oxygen-storage properties. Applied Catalysis B: Environmental, 1998, 15 (1-2): 107~114.

DOI: 10.1016/s0926-3373(97)00040-4

Google Scholar

[5] C. H. Jung, R. Ishimoto, H. Tsuboi. Interfacial properties of ZrO2 supported precious metal catalysts: A density functional study. Applied Catalysis A: General, 2006, 305 (1): 102~109.

DOI: 10.1016/j.apcata.2006.02.050

Google Scholar