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Title: Enhancing low-temperature activity and durability of Pd-based diesel oxidation catalysts using ZrO2 supports

Abstract

In this study, we investigated the impact of ZrO2 on the performance of palladium-based oxidation catalysts with respect to low-temperature activity, hydrothermal stability, and sulfur tolerance. Pd supported on ZrO2 and SiO2 were synthesized for a comparative study. Additionally, in an attempt to maximize the ZrO2 surface area and improve sulfur tolerance, a Pd support with ZrO2-dispersed onto SiO2 was studied. The physicochemical properties of the catalysts were examined using ICP, N2 sorption, XRD, SEM, TEM, and NH3-, CO2-, and NOx-TPD. The activity of the Pd catalysts were measured from 60 to 600 °C in a flow of 4000 ppm CO, 500 ppm NO, 1000 ppm C3H6, 4% O2, 5% H2O, and Ar balance. The Pd catalysts were evaluated in fresh, sulfated, and hydrothermally aged states. Overall, the ZrO2-containing catalysts showed considerably higher CO and C3H6 oxidation activity than Pd/SiO2 under the reaction conditions studied.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Universite Pierre et Marie Curie Univ. Paris, Paris (France); CNRS, Paris (France)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1235836
Alternate Identifier(s):
OSTI ID: 1348251
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Applied Catalysis. B, Environmental
Additional Journal Information:
Journal Volume: 187; Journal Issue: C; Journal ID: ISSN 0926-3373
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; diesel oxidation catalyst; palladium; zirconia; support; sol-gel

Citation Formats

Kim, Mi -Young, Kyriakidou, Eleni A., Choi, Jae -Soon, Toops, Todd J., Binder, Andrew J., Thomas, Cyril, Schwartz, Viviane, Chen, Jihua, Hensley, Dale K., and Parks, II, James E. Enhancing low-temperature activity and durability of Pd-based diesel oxidation catalysts using ZrO2 supports. United States: N. p., 2016. Web. doi:10.1016/j.apcatb.2016.01.023.
Kim, Mi -Young, Kyriakidou, Eleni A., Choi, Jae -Soon, Toops, Todd J., Binder, Andrew J., Thomas, Cyril, Schwartz, Viviane, Chen, Jihua, Hensley, Dale K., & Parks, II, James E. Enhancing low-temperature activity and durability of Pd-based diesel oxidation catalysts using ZrO2 supports. United States. https://doi.org/10.1016/j.apcatb.2016.01.023
Kim, Mi -Young, Kyriakidou, Eleni A., Choi, Jae -Soon, Toops, Todd J., Binder, Andrew J., Thomas, Cyril, Schwartz, Viviane, Chen, Jihua, Hensley, Dale K., and Parks, II, James E. Mon . "Enhancing low-temperature activity and durability of Pd-based diesel oxidation catalysts using ZrO2 supports". United States. https://doi.org/10.1016/j.apcatb.2016.01.023. https://www.osti.gov/servlets/purl/1235836.
@article{osti_1235836,
title = {Enhancing low-temperature activity and durability of Pd-based diesel oxidation catalysts using ZrO2 supports},
author = {Kim, Mi -Young and Kyriakidou, Eleni A. and Choi, Jae -Soon and Toops, Todd J. and Binder, Andrew J. and Thomas, Cyril and Schwartz, Viviane and Chen, Jihua and Hensley, Dale K. and Parks, II, James E.},
abstractNote = {In this study, we investigated the impact of ZrO2 on the performance of palladium-based oxidation catalysts with respect to low-temperature activity, hydrothermal stability, and sulfur tolerance. Pd supported on ZrO2 and SiO2 were synthesized for a comparative study. Additionally, in an attempt to maximize the ZrO2 surface area and improve sulfur tolerance, a Pd support with ZrO2-dispersed onto SiO2 was studied. The physicochemical properties of the catalysts were examined using ICP, N2 sorption, XRD, SEM, TEM, and NH3-, CO2-, and NOx-TPD. The activity of the Pd catalysts were measured from 60 to 600 °C in a flow of 4000 ppm CO, 500 ppm NO, 1000 ppm C3H6, 4% O2, 5% H2O, and Ar balance. The Pd catalysts were evaluated in fresh, sulfated, and hydrothermally aged states. Overall, the ZrO2-containing catalysts showed considerably higher CO and C3H6 oxidation activity than Pd/SiO2 under the reaction conditions studied.},
doi = {10.1016/j.apcatb.2016.01.023},
journal = {Applied Catalysis. B, Environmental},
number = C,
volume = 187,
place = {United States},
year = {Mon Jan 18 00:00:00 EST 2016},
month = {Mon Jan 18 00:00:00 EST 2016}
}

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Works referencing / citing this record:

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Gaseous CO and toluene co-oxidation over monolithic core–shell Co 3 O 4 -based hetero-structured catalysts
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Zeolite Beta Doped with La, Fe, and Pd as a Hydrocarbon Trap
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Study on Low-Temperature Catalytic Dehydrogenation Reaction of Tail Chlorine by Pd/Al2O3
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