The DOI matches its Crossref record.
Pore Structural Characterization of Fuel Cell Layers Using Integrated Mercury Porosimetry and Computerized X-ray Tomography
Open accessAbstract
The pore structure of the cathode catalyst layer of proton-exchange membrane (PEM) fuel cells is a major factor influencing cell performance. The nanostructure of the catalyst layer has been probed using a novel combination of mercury porosimetry with computerized X-ray tomography (CXT), even though the nanopores were below the nominal CXT resolution. The method allows probing of the macroscopic spatial variability in the accessibility of the nanostructure. In particular, mercury entrapment within the catalyst layer showed a pronounced regular spatial patterning corresponding to the already higher X-ray absorbing regions of the fresh catalyst layer. The initial, greater X-ray absorption was due to a higher local concentration of carbon-supported platinum catalyst. This was due to segregation of ionomer away from these areas caused by the particular screen printing catalyst layer deposition method used, which both enhanced the accessibility of the origin regions and, concomitantly, reduced the accessibility of the destination regions.
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“This method showed that a spatial arrangement of high-density regions created when using a screen-printing process has a relatively more accessible porosity.108”
From A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: Nanostructure, activity, mechanism and carbon support in PEM fuel cells (2017) · cites this paper as [108]
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Research works printed but not linked: 15
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Cited by
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Sui, S., Wang, X., Zhou, X., Su, Y., Riffat, S., & Liu, C.-J. (2017) · Journal of Materials Chemistry A · doi:10.1039/c6ta08580f · Cited by 916
Metadata
- Authors
- Malik, S., Smith, L., Sharman, J., Holt, E. M., & Rigby, S. P.
- Affiliations
- University of Nottingham (GB)
- Johnson Matthey Technology Centre, Blount’s Court Road, Sonning Common, Reading, United Kingdom
- Johnson Matthey Process Technology Division, P.O. Box 1, Belasis Avenue, Billingham, Cleveland, United Kingdom
- Corresponding author
- Rigby, Sean P.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-10-05
- Volume
- 55
- Issue
- 41
- Pages
- 10850-10859
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2527178073
- Cited by
- 17
- References
- 0
- Citations by year
- 2026: 2 · 2025: 2 · 2021: 2 · 2020: 2 · 2019: 4 · 2018: 3 · 2017: 1 · 2016: 1
- FWCI
- 1.38
- Type
- journal article
- Language
- en
- Open access
- Licence
- other-oa
- Locations
- Industrial & Engineering Chemistry Research (publishedVersion)
- Repository@Nottingham (University of Nottingham) (acceptedVersion, other-oa)
- Repository@Nottingham (University of Nottingham) (submittedVersion, cc-by)
- Funders
- University of Nottingham
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Materials Science › Materials Chemistry › Advancements in Solid Oxide Fuel Cells
- Keywords
- proton exchange membrane fuel cells, cathode catalyst layer, pore structure, mercury intrusion porosimetry, platinum catalysts, screen printing, X-ray absorption
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