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Title: Pd-promoted WO3-ZrO2 for low temperature NOx storage

Abstract

Pd-promoted ZrO2 and WO3-ZrO2 (W-Zr) were investigated for low temperature NOx adsorption and release. Pd-promoted W-Zr exhibited high NOx storage efficiency at short storage times, subsequently releasing ~95% of the stored NOx upon thermal ramping to 350 °C. DRIFTS studies demonstrated that Pd increased nitrate formation relative to nitrite during NOx storage on both Pd-Zr and Pd-W-Zr. Moreover, Pd sites on Pd-W-Zr played a major role in NOx storage, the ad-species being readily removed by 350 °C. From NO- and CO-DRIFTS data, it is inferred that Pd on the acidic W-Zr support was present as mainly cationic species, and was therefore able to adsorb NO, whereas on ZrO2 Pd was not able to directly store NOx. Co-feeding CO with NO resulted in increased NOx storage capacity for Pd-W-Zr, which on the basis of DRIFTS measurements is attributed to the formation of Pd2+(CO)(NO) complexes.

Authors:
 [1];  [1]; ORCiD logo [2];  [1]; ORCiD logo [3];  [1];  [1];  [1]; ORCiD logo [4]; ORCiD logo [4];  [5];  [5]
  1. Univ. of Kentucky, Lexington, KY (United States)
  2. Univ. of Kentucky, Lexington, KY (United States); Qingdao Univ. of Science and Technology (China)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. RMIT Univ., Melbourne, VIC (Australia)
  5. Luxfer MEL Technologies, Manchester (United Kingdom)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Understanding and Control of Acid Gas-induced Evolution of Materials for Energy (UNCAGE-ME); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1615187
Alternate Identifier(s):
OSTI ID: 1702836
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Applied Catalysis B: Environmental
Additional Journal Information:
Journal Volume: 264; 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; Passive NOx adsorber; Tungstated zirconia; DRIFTS; Palladium; Cations; Nitrosyl complex

Citation Formats

Ji, Yaying, Bai, Shuli, Xu, Dongyan, Qian, Dali, Wu, Zili, Song, Yang, Pace, Robert, Crocker, Mark, Wilson, Karen, Lee, Adam, Harris, Deb, and Scapens, Dave. Pd-promoted WO3-ZrO2 for low temperature NOx storage. United States: N. p., 2019. Web. https://doi.org/10.1016/j.apcatb.2019.118499.
Ji, Yaying, Bai, Shuli, Xu, Dongyan, Qian, Dali, Wu, Zili, Song, Yang, Pace, Robert, Crocker, Mark, Wilson, Karen, Lee, Adam, Harris, Deb, & Scapens, Dave. Pd-promoted WO3-ZrO2 for low temperature NOx storage. United States. https://doi.org/10.1016/j.apcatb.2019.118499
Ji, Yaying, Bai, Shuli, Xu, Dongyan, Qian, Dali, Wu, Zili, Song, Yang, Pace, Robert, Crocker, Mark, Wilson, Karen, Lee, Adam, Harris, Deb, and Scapens, Dave. Sat . "Pd-promoted WO3-ZrO2 for low temperature NOx storage". United States. https://doi.org/10.1016/j.apcatb.2019.118499. https://www.osti.gov/servlets/purl/1615187.
@article{osti_1615187,
title = {Pd-promoted WO3-ZrO2 for low temperature NOx storage},
author = {Ji, Yaying and Bai, Shuli and Xu, Dongyan and Qian, Dali and Wu, Zili and Song, Yang and Pace, Robert and Crocker, Mark and Wilson, Karen and Lee, Adam and Harris, Deb and Scapens, Dave},
abstractNote = {Pd-promoted ZrO2 and WO3-ZrO2 (W-Zr) were investigated for low temperature NOx adsorption and release. Pd-promoted W-Zr exhibited high NOx storage efficiency at short storage times, subsequently releasing ~95% of the stored NOx upon thermal ramping to 350 °C. DRIFTS studies demonstrated that Pd increased nitrate formation relative to nitrite during NOx storage on both Pd-Zr and Pd-W-Zr. Moreover, Pd sites on Pd-W-Zr played a major role in NOx storage, the ad-species being readily removed by 350 °C. From NO- and CO-DRIFTS data, it is inferred that Pd on the acidic W-Zr support was present as mainly cationic species, and was therefore able to adsorb NO, whereas on ZrO2 Pd was not able to directly store NOx. Co-feeding CO with NO resulted in increased NOx storage capacity for Pd-W-Zr, which on the basis of DRIFTS measurements is attributed to the formation of Pd2+(CO)(NO) complexes.},
doi = {10.1016/j.apcatb.2019.118499},
journal = {Applied Catalysis B: Environmental},
number = C,
volume = 264,
place = {United States},
year = {2019},
month = {11}
}

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Works referenced in this record:

An assessment of low temperature NO adsorbers for cold-start NO control on diesel engines
journal, December 2015


Pt- and Pd-Promoted CeO 2 –ZrO 2 for Passive NOx Adsorber Applications
journal, December 2016

  • Ji, Yaying; Xu, Dongyan; Bai, Shuli
  • Industrial & Engineering Chemistry Research, Vol. 56, Issue 1
  • DOI: 10.1021/acs.iecr.6b03793

Ceria-Based Catalysts for Low Temperature NO x Storage and Release
journal, February 2016


CeO2-M2O3 Passive NO x Adsorbers for Cold Start Applications
journal, December 2016

  • Jones, Samantha; Ji, Yaying; Bueno-Lopez, Agustín
  • Emission Control Science and Technology, Vol. 3, Issue 1
  • DOI: 10.1007/s40825-016-0058-7

An assessment of Pt and Pd model catalysts for low temperature NO adsorption
journal, June 2016


Low Temperature NO Storage of Zeolite Supported Pd for Low Temperature Diesel Engine Emission Control
journal, June 2016


Effects of CO on Pd/BEA Passive NOx Adsorbers
journal, January 2017


Low-Temperature Pd/Zeolite Passive NO x Adsorbers: Structure, Performance, and Adsorption Chemistry
journal, July 2017

  • Zheng, Yang; Kovarik, Libor; Engelhard, Mark H.
  • The Journal of Physical Chemistry C, Vol. 121, Issue 29
  • DOI: 10.1021/acs.jpcc.7b04312

Activation of Pd/SSZ-13 catalyst by hydrothermal aging treatment in passive NO adsorption performance at low temperature for cold start application
journal, September 2017


Molecular Level Understanding of How Oxygen and Carbon Monoxide Improve NO x Storage in Palladium/SSZ-13 Passive NO x Adsorbers: The Role of NO + and Pd(II)(CO)(NO) Species
journal, April 2018

  • Khivantsev, Konstantin; Gao, Feng; Kovarik, Libor
  • The Journal of Physical Chemistry C, Vol. 122, Issue 20
  • DOI: 10.1021/acs.jpcc.8b01007

Effect of various activation conditions on the low temperature NO adsorption performance of Pd/SSZ-13 passive NOx adsorber
journal, January 2019


Palladium/Beta zeolite passive NOx adsorbers (PNA): Clarification of PNA chemistry and the effects of CO and zeolite crystallite size on PNA performance
journal, January 2019


Structural and Catalytic Characterization of Solid Acids Based on Zirconia Modified by Tungsten Oxide
journal, January 1999

  • Barton, David G.; Soled, Stuart L.; Meitzner, George D.
  • Journal of Catalysis, Vol. 181, Issue 1
  • DOI: 10.1006/jcat.1998.2269

Hydroisomerization of normal hexadecane with platinum-promoted tungstate-modified zirconia catalysts
journal, February 2000


Palladium-tungsten catalysts for automotive exhaust treatment
journal, June 1983

  • Adams, Karen M.; Gandhi, Haren S.
  • Industrial & Engineering Chemistry Product Research and Development, Vol. 22, Issue 2
  • DOI: 10.1021/i300010a008

On the nature of Pd n+ surface carbonyl and nitrosyl complexes formed on Pd-promoted tungstated zirconia catalyst
journal, January 2003

  • Vijayanand, P.; Chakarova, K.; Hadjiivanov, K.
  • Phys. Chem. Chem. Phys., Vol. 5, Issue 18
  • DOI: 10.1039/B307723C

Infrared studies of CO and/or NO adsorption on reduced W/Al2O3 catalysts
journal, September 1991


NO x -TPD as a Tool to Estimate the Accessible Zirconia Surface of ZrO 2 -Containing Materials
journal, May 2010

  • Law, Hiu Ying; Blanchard, Juliette; Carrier, Xavier
  • The Journal of Physical Chemistry C, Vol. 114, Issue 21
  • DOI: 10.1021/jp9089535

Nature and Reactivity of the Surface Species Formed after NO Adsorption and NO + O2 Coadsorption on a WO3–ZrO2 Catalyst
journal, July 2002

  • Weingand, Thomas; Kuba, Stefan; Hadjiivanov, Konstantin
  • Journal of Catalysis, Vol. 209, Issue 2
  • DOI: 10.1006/jcat.2002.3654

Routes of formation and composition of NOx complexes adsorbed on palladium-promoted tungstated zirconia
journal, March 2006


Al2O3-based passive NOx adsorbers for low temperature applications
journal, July 2015


Role of tungsten in the aqueous phase hydrodeoxygenation of ethylene glycol on tungstated zirconia supported palladium
journal, November 2014


Redox properties of tungstated zirconia catalysts: Relevance to the activation of n-alkanes
journal, January 2001

  • Kuba, Stefan; Concepción Heydorn, Patricia; Grasselli, Robert K.
  • Physical Chemistry Chemical Physics, Vol. 3, Issue 1
  • DOI: 10.1039/b007774g

New insights into the nature of the acidic catalytic active sites present in ZrO2-supported tungsten oxide catalysts
journal, May 2008


Platinum supported WOx–ZrO2: Effect of calcination temperature and tungsten loading
journal, March 1998


Thermal stability improvement on pore and phase structure of sol-gel derived zirconia
journal, June 1995

  • Gopalan, R.; Chang, C. -H.; Lin, Y. S.
  • Journal of Materials Science, Vol. 30, Issue 12
  • DOI: 10.1007/BF01209219

FTIR studies of adsorption of NO, NO2 and N2O on layered V2O5/ZrO2
journal, January 1995

  • Miyata, Hisashi; Konishi, Shoichiro; Ohno, Takashi
  • Journal of the Chemical Society, Faraday Transactions, Vol. 91, Issue 10
  • DOI: 10.1039/ft9959101557

The adsorption of O2 and NO on CrOx/ZrO2 catalysts, as investigated by IR and ESR spectroscopies
journal, August 1991


Surface Species Formed after NO Adsorption and NO + O 2 Coadsorption on ZrO 2 and Sulfated ZrO 2 :  An FTIR Spectroscopic Study
journal, March 2002

  • Hadjiivanov, Konstantin; Avreyska, Valentina; Klissurski, Dimitar
  • Langmuir, Vol. 18, Issue 5
  • DOI: 10.1021/la0110895

FT-IR spectroscopic investigation of the surface reaction of CH4 with NO x species adsorbed on Pd/WO3–ZrO2 catalyst
journal, April 2007


Infrared study of nitrogen monoxide adsorption on palladium ion-exchanged ZSM-5 catalysts
journal, January 1996

  • Descorme, Claude; G�lin, Patrick; Primet, Michel
  • Catalysis Letters, Vol. 41, Issue 3-4
  • DOI: 10.1007/BF00811479

Spectroscopic study of the interaction of carbon monoxide with cationic and metallic palladium in palladium–alumina catalysts
journal, January 1992

  • Tessier, Didier; Rakai, Ahmed; Bozon-Verduraz, François
  • J. Chem. Soc., Faraday Trans., Vol. 88, Issue 5
  • DOI: 10.1039/FT9928800741

Infrared Study of CO Adsorbed on Pd/Al 2 O 3 −ZrO 2 . Effect of Zirconia Added by Impregnation
journal, November 2004

  • Tiznado, Hugo; Fuentes, Sergio; Zaera, Francisco
  • Langmuir, Vol. 20, Issue 24
  • DOI: 10.1021/la049606h

Characterization of supported palladium catalysts *1III. Pd/Al2O3
journal, November 1989


Molecular Orbital View of Chemisorbed Carbon Monoxide
journal, October 1964

  • Blyholder, George
  • The Journal of Physical Chemistry, Vol. 68, Issue 10
  • DOI: 10.1021/j100792a006

Promotion Effects in the Oxidation of CO over Zeolite-Supported Pt Nanoparticles
journal, March 2005

  • Visser, Tom; Nijhuis, T. Alexander; van der Eerden, Ad M. J.
  • The Journal of Physical Chemistry B, Vol. 109, Issue 9
  • DOI: 10.1021/jp044767f

Function of Pd0n Clusters, Pd2+(oxo-) Ions, and PdO Clusters in the Catalytic Reduction of NO with Methane over Pd/MFI Catalysts
journal, December 2001

  • Wen, Bin; Sun, Qi; Sachtler, Wolfgang M. H.
  • Journal of Catalysis, Vol. 204, Issue 2
  • DOI: 10.1006/jcat.2001.3401

X-ray Absorption Fine Structure Study of the Formation of the Highly Dispersed PdO over ZSM-5 and the Structural Change of Pd Induced by Adsorption of NO
journal, February 2000

  • Okumura, Kazu; Amano, Jiro; Yasunobu, Naoko
  • The Journal of Physical Chemistry B, Vol. 104, Issue 5
  • DOI: 10.1021/jp993182w

Investigations of the Dispersion of Pd in H-ZSM-5
journal, December 1997

  • Aylor, Adam W.; Lobree, Lisa J.; Reimer, Jeffrey A.
  • Journal of Catalysis, Vol. 172, Issue 2
  • DOI: 10.1006/jcat.1997.1893

Co-ordination chemistry of palladium cations in Pd-H-ZSM-5 as revealed by FTIR spectra of adsorbed and co-adsorbed probe molecules (CO and NO)
journal, January 2004

  • Chakarova, K.; Ivanova, E.; Hadjiivanov, K.
  • Phys. Chem. Chem. Phys., Vol. 006, Issue 13
  • DOI: 10.1039/B401934B