DOI: 10.1002/cctc.201700479. Three‐Dimensional Probing of Catalyst Ageing on Different Length Scales: A Case Study of Changes in Microstructure and Activity for CO Oxidation of a Pt

Three‐Dimensional Probing of Catalyst Ageing on Different Length Scales: A Case Study of Changes in Microstructure and Activity for CO Oxidation of a Pt–Pd/Al2O3 Catalyst

10.1002/cctc.201700479

Crossref journal-article

Wiley

ChemCatChem (311)

Abstract

AbstractThe effects of thermal treatment on the microstructure of a Pt–Pd/Al2O3 oxidation catalyst and its activity for CO oxidation have been studied. The microstructural analysis was performed by using several high‐resolution electron microscopy techniques such as STEM, FIB/SEM slice & view, SEM and EDX. A combination of these analytic techniques and advanced TEM specimen preparation allowed for three‐dimensional probing at different length scales, avoiding the random character of conventionally crushed powder specimens owing to site specificity. A core–shell distribution of Pt–Pd nanoparticles within the alumina support particles, with enlarged nanoparticles (≈1.5 to 40 nm) present in the shell and small nanoparticles (<1.5 nm) in the core, was revealed in the untreated catalyst. A more uniform spatial distribution developed during thermal treatment at 700 °C or higher with larger nanoparticles forming in the core. Accompanying measurements of the catalytic activity for CO oxidation showed the detrimental effect of sintering of the small nanoparticles on the reaction rate and apparent activation energy of the reaction.

Bibliography

NilssonâPingel, T., Fouladvand, S., Heggen, M., DuninâBorkowski, R. E., JÃ¤ger, W., Westenberger, P., Phifer, D., McNeil, J., Skoglundh, M., GrÃ¶nbeck, H., & Olsson, E. (2017). ThreeâDimensional Probing of Catalyst Ageing on Different Length Scales: A Case Study of Changes in Microstructure and Activity for CO Oxidation of a PtâPd/Al2O3 Catalyst. ChemCatChem, 9(18), 3544â3553. Portico.

Authors 11

Torben Nilsson Pingel (first)
Sheedeh Fouladvand (additional)
Marc Heggen (additional)
Rafal E. Dunin‐Borkowski (additional)
Wolfgang Jäger (additional)
Peter Westenberger (additional)
Daniel Phifer (additional)
Jace McNeil (additional)
Magnus Skoglundh (additional)
Henrik Grönbeck (additional)
Eva Olsson (additional)

References 54 Referenced 3

10.1002/9781118397749
C. D. Falk J. J. Mooney SAE International 1980;
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10.1039/c1cy00007a
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10.1080/01614940.2011.596429
10.1016/j.apcatb.2008.02.018
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10.1021/ja01269a023
10.1016/j.apcatb.2013.12.018

Dates

Type	When
Created	8 years, 4 months ago (March 24, 2017, 7:36 a.m.)
Deposited	1 year, 11 months ago (Sept. 14, 2023, 2:15 a.m.)
Indexed	6 months ago (Feb. 21, 2025, 11:18 a.m.)
Issued	8 years, 2 months ago (June 20, 2017)
Published	8 years, 2 months ago (June 20, 2017)
Published Online	8 years, 2 months ago (June 20, 2017)
Published Print	7 years, 11 months ago (Sept. 22, 2017)

Funders 3

Energimyndigheten 10.13039/501100004527
Region: Europe
gov (National government)
Labels3
1. Swedish Energy Agency
2. egentligen Statens energimyndighet
3. STEM
VINNOVA 10.13039/501100001858
Region: Europe
gov (National government)
Labels1
1. Swedish Governmental Agency for Innovation Systems
Chalmers Tekniska Högskola 10.13039/501100002835
Region: Europe
pri (Universities (academic only))
Labels1
1. Chalmers University of Technology

BibTeX

@article{Nilsson_Pingel_2017, title={Three‐Dimensional Probing of Catalyst Ageing on Different Length Scales: A Case Study of Changes in Microstructure and Activity for CO Oxidation of a Pt–Pd/Al2O3 Catalyst}, volume={9}, ISSN={1867-3899}, url={http://dx.doi.org/10.1002/cctc.201700479}, DOI={10.1002/cctc.201700479}, number={18}, journal={ChemCatChem}, publisher={Wiley}, author={Nilsson Pingel, Torben and Fouladvand, Sheedeh and Heggen, Marc and Dunin‐Borkowski, Rafal E. and Jäger, Wolfgang and Westenberger, Peter and Phifer, Daniel and McNeil, Jace and Skoglundh, Magnus and Grönbeck, Henrik and Olsson, Eva}, year={2017}, month=jun, pages={3544–3553} }

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    "10.1002/cctc.201700479"
  ],
  "URL": "http://dx.doi.org/10.1002/cctc.201700479",
  "relation": {},
  "ISSN": [
    "1867-3880",
    "1867-3899"
  ],
  "subject": [],
  "container-title-short": "ChemCatChem",
  "published": {
    "date-parts": [
      [
        2017,
        6,
        20
      ]
    ]
  },
  "assertion": [
    {
      "value": "2017-03-17",
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      "label": "Received",
      "group": {
        "name": "publication_history",
        "label": "Publication History"
      }
    },
    {
      "value": "2017-06-20",
      "order": 2,
      "name": "published",
      "label": "Published",
      "group": {
        "name": "publication_history",
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}