ALD materials in catalyst support materials on PEM fuel cells for automotive MEAs

Pirjo Heikkilä, Matti Putkonen, Antti T. Pasanen, HIlle Rautkoski, M. Bosund, Jari Ihonen, Mika Vähä-Nissi

Research output: Contribution to conferenceConference AbstractScientific

Abstract

The general requirements for PEM fuel cell catalyst support materials are high electronic conductivity, high specific surface area and high electrochemical and chemical stability. Current structures typically consist of Pt particles on carbon black support material, but the mass activity of these high surface area nanoparticulate catalysts is restrainer for a large-scale commercialization of PEM fuel cell for vehicles. Reduction of platinum content per vehicle and increase of mass activity are solutions paving the way for a larger utilization of the PEM fuel cells. New approach for automotive PEM fuel cell catalysts are being developed in project CATAPULT (novel CATAlyst structures employing Pt at Ultra Low and zero loadings for auTomotive MEAs; Funded by EC FP7, Fuel Cells and Hydrogen Joint Technology Initiative, grant agreement n°.325268). In this new approach platinum is deposited as an extremely thin layer on corrosion resistant supports of various morphologies including fibrous and tubular structures. VTT's approach is to produce two types of structures: core-shell carbon-ceramic sub-µm fibrous and ceramic sub-µm tubular catalyst supports utilizing atomic layer deposition (ALD) method on electrospun sub-µm fibres. Within this presentation we will present results of Nb-Ti-oxide coatings made, firstly, on carbonized sub-µm fibres in order to obtain core shell fibrous supports and, secondly, on sacrificial polymeric fibres in order to make tubular supports for platinum coating also made by ALD method. Support production and the properties of the support materials are presented, and deposition of Pt catalyst layer is discussed in this presentation.
Original languageEnglish
Publication statusPublished - 2014
Event28th International Conference on Surface Modification Technologies, SMT28 - Tampere, Finland
Duration: 16 Jun 201418 Jun 2014

Conference

Conference28th International Conference on Surface Modification Technologies, SMT28
CountryFinland
CityTampere
Period16/06/1418/06/14

Fingerprint

Atomic layer deposition
Catalyst supports
Fuel cells
Platinum
Catalysts
Fibers
Automotive fuels
Coatings
Chemical stability
Carbon black
Specific surface area
Corrosion
Hydrogen
Carbon
Oxides

Keywords

  • atomic layer deposition
  • core-shell fibres
  • electrospinning
  • fuel cell
  • catalyst

Cite this

Heikkilä, P., Putkonen, M., Pasanen, A. T., Rautkoski, HI., Bosund, M., Ihonen, J., & Vähä-Nissi, M. (2014). ALD materials in catalyst support materials on PEM fuel cells for automotive MEAs. Abstract from 28th International Conference on Surface Modification Technologies, SMT28, Tampere, Finland.
Heikkilä, Pirjo ; Putkonen, Matti ; Pasanen, Antti T. ; Rautkoski, HIlle ; Bosund, M. ; Ihonen, Jari ; Vähä-Nissi, Mika. / ALD materials in catalyst support materials on PEM fuel cells for automotive MEAs. Abstract from 28th International Conference on Surface Modification Technologies, SMT28, Tampere, Finland.
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abstract = "The general requirements for PEM fuel cell catalyst support materials are high electronic conductivity, high specific surface area and high electrochemical and chemical stability. Current structures typically consist of Pt particles on carbon black support material, but the mass activity of these high surface area nanoparticulate catalysts is restrainer for a large-scale commercialization of PEM fuel cell for vehicles. Reduction of platinum content per vehicle and increase of mass activity are solutions paving the way for a larger utilization of the PEM fuel cells. New approach for automotive PEM fuel cell catalysts are being developed in project CATAPULT (novel CATAlyst structures employing Pt at Ultra Low and zero loadings for auTomotive MEAs; Funded by EC FP7, Fuel Cells and Hydrogen Joint Technology Initiative, grant agreement n°.325268). In this new approach platinum is deposited as an extremely thin layer on corrosion resistant supports of various morphologies including fibrous and tubular structures. VTT's approach is to produce two types of structures: core-shell carbon-ceramic sub-µm fibrous and ceramic sub-µm tubular catalyst supports utilizing atomic layer deposition (ALD) method on electrospun sub-µm fibres. Within this presentation we will present results of Nb-Ti-oxide coatings made, firstly, on carbonized sub-µm fibres in order to obtain core shell fibrous supports and, secondly, on sacrificial polymeric fibres in order to make tubular supports for platinum coating also made by ALD method. Support production and the properties of the support materials are presented, and deposition of Pt catalyst layer is discussed in this presentation.",
keywords = "atomic layer deposition, core-shell fibres, electrospinning, fuel cell, catalyst",
author = "Pirjo Heikkil{\"a} and Matti Putkonen and Pasanen, {Antti T.} and HIlle Rautkoski and M. Bosund and Jari Ihonen and Mika V{\"a}h{\"a}-Nissi",
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Heikkilä, P, Putkonen, M, Pasanen, AT, Rautkoski, HI, Bosund, M, Ihonen, J & Vähä-Nissi, M 2014, 'ALD materials in catalyst support materials on PEM fuel cells for automotive MEAs' 28th International Conference on Surface Modification Technologies, SMT28, Tampere, Finland, 16/06/14 - 18/06/14, .

ALD materials in catalyst support materials on PEM fuel cells for automotive MEAs. / Heikkilä, Pirjo; Putkonen, Matti; Pasanen, Antti T.; Rautkoski, HIlle; Bosund, M.; Ihonen, Jari; Vähä-Nissi, Mika.

2014. Abstract from 28th International Conference on Surface Modification Technologies, SMT28, Tampere, Finland.

Research output: Contribution to conferenceConference AbstractScientific

TY - CONF

T1 - ALD materials in catalyst support materials on PEM fuel cells for automotive MEAs

AU - Heikkilä, Pirjo

AU - Putkonen, Matti

AU - Pasanen, Antti T.

AU - Rautkoski, HIlle

AU - Bosund, M.

AU - Ihonen, Jari

AU - Vähä-Nissi, Mika

N1 - Project code: 79749

PY - 2014

Y1 - 2014

N2 - The general requirements for PEM fuel cell catalyst support materials are high electronic conductivity, high specific surface area and high electrochemical and chemical stability. Current structures typically consist of Pt particles on carbon black support material, but the mass activity of these high surface area nanoparticulate catalysts is restrainer for a large-scale commercialization of PEM fuel cell for vehicles. Reduction of platinum content per vehicle and increase of mass activity are solutions paving the way for a larger utilization of the PEM fuel cells. New approach for automotive PEM fuel cell catalysts are being developed in project CATAPULT (novel CATAlyst structures employing Pt at Ultra Low and zero loadings for auTomotive MEAs; Funded by EC FP7, Fuel Cells and Hydrogen Joint Technology Initiative, grant agreement n°.325268). In this new approach platinum is deposited as an extremely thin layer on corrosion resistant supports of various morphologies including fibrous and tubular structures. VTT's approach is to produce two types of structures: core-shell carbon-ceramic sub-µm fibrous and ceramic sub-µm tubular catalyst supports utilizing atomic layer deposition (ALD) method on electrospun sub-µm fibres. Within this presentation we will present results of Nb-Ti-oxide coatings made, firstly, on carbonized sub-µm fibres in order to obtain core shell fibrous supports and, secondly, on sacrificial polymeric fibres in order to make tubular supports for platinum coating also made by ALD method. Support production and the properties of the support materials are presented, and deposition of Pt catalyst layer is discussed in this presentation.

AB - The general requirements for PEM fuel cell catalyst support materials are high electronic conductivity, high specific surface area and high electrochemical and chemical stability. Current structures typically consist of Pt particles on carbon black support material, but the mass activity of these high surface area nanoparticulate catalysts is restrainer for a large-scale commercialization of PEM fuel cell for vehicles. Reduction of platinum content per vehicle and increase of mass activity are solutions paving the way for a larger utilization of the PEM fuel cells. New approach for automotive PEM fuel cell catalysts are being developed in project CATAPULT (novel CATAlyst structures employing Pt at Ultra Low and zero loadings for auTomotive MEAs; Funded by EC FP7, Fuel Cells and Hydrogen Joint Technology Initiative, grant agreement n°.325268). In this new approach platinum is deposited as an extremely thin layer on corrosion resistant supports of various morphologies including fibrous and tubular structures. VTT's approach is to produce two types of structures: core-shell carbon-ceramic sub-µm fibrous and ceramic sub-µm tubular catalyst supports utilizing atomic layer deposition (ALD) method on electrospun sub-µm fibres. Within this presentation we will present results of Nb-Ti-oxide coatings made, firstly, on carbonized sub-µm fibres in order to obtain core shell fibrous supports and, secondly, on sacrificial polymeric fibres in order to make tubular supports for platinum coating also made by ALD method. Support production and the properties of the support materials are presented, and deposition of Pt catalyst layer is discussed in this presentation.

KW - atomic layer deposition

KW - core-shell fibres

KW - electrospinning

KW - fuel cell

KW - catalyst

M3 - Conference Abstract

ER -

Heikkilä P, Putkonen M, Pasanen AT, Rautkoski HI, Bosund M, Ihonen J et al. ALD materials in catalyst support materials on PEM fuel cells for automotive MEAs. 2014. Abstract from 28th International Conference on Surface Modification Technologies, SMT28, Tampere, Finland.