ALD deposition of core-shell structures onto electrospun carbon webs for PEM fuel cell MEAs

Pirjo Heikkilä, Putkonen Matti (Corresponding author), Antti T. Pasanen, Hille Rautkoski, Unto Tapper, Jari Ihonen, Markus Bosund, Timon Geppert, Hany El-Sayed, Hubert A. Gasteiger, Pekka Simell, Mika Vähä-Nissi

Research output: Contribution to conferenceConference PosterScientific

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. 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 type 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 supports made by making Ti-Nb oxide layers , 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.

Conference

ConferenceElectrolysis & Fuel Cell Discussions Conference "Challenges towards zero platinum for oxygen reduction", EFCD 2015, 13 - 16 September 2015, La Grande Motte, France
Period1/01/15 → …

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

Cite this

Heikkilä, P., Matti, P., Pasanen, A. T., Rautkoski, H., Tapper, U., Ihonen, J., ... Vähä-Nissi, M. (2015). ALD deposition of core-shell structures onto electrospun carbon webs for PEM fuel cell MEAs. Poster session presented at Electrolysis & Fuel Cell Discussions Conference "Challenges towards zero platinum for oxygen reduction", EFCD 2015, 13 - 16 September 2015, La Grande Motte, France, .
Heikkilä, Pirjo ; Matti, Putkonen ; Pasanen, Antti T. ; Rautkoski, Hille ; Tapper, Unto ; Ihonen, Jari ; Bosund, Markus ; Geppert, Timon ; El-Sayed, Hany ; Gasteiger, Hubert A. ; Simell, Pekka ; Vähä-Nissi, Mika. / ALD deposition of core-shell structures onto electrospun carbon webs for PEM fuel cell MEAs. Poster session presented at Electrolysis & Fuel Cell Discussions Conference "Challenges towards zero platinum for oxygen reduction", EFCD 2015, 13 - 16 September 2015, La Grande Motte, France, .
@conference{4ecd95189a894b85bd9a1ae02b945ef9,
title = "ALD deposition of core-shell structures onto electrospun carbon webs for PEM fuel cell MEAs",
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. 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 type 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 supports made by making Ti-Nb oxide layers , 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.",
author = "Pirjo Heikkil{\"a} and Putkonen Matti and Pasanen, {Antti T.} and Hille Rautkoski and Unto Tapper and Jari Ihonen and Markus Bosund and Timon Geppert and Hany El-Sayed and Gasteiger, {Hubert A.} and Pekka Simell and Mika V{\"a}h{\"a}-Nissi",
year = "2015",
language = "English",
note = "Electrolysis & Fuel Cell Discussions Conference {"}Challenges towards zero platinum for oxygen reduction{"}, EFCD 2015, 13 - 16 September 2015, La Grande Motte, France ; Conference date: 01-01-2015",

}

Heikkilä, P, Matti, P, Pasanen, AT, Rautkoski, H, Tapper, U, Ihonen, J, Bosund, M, Geppert, T, El-Sayed, H, Gasteiger, HA, Simell, P & Vähä-Nissi, M 2015, 'ALD deposition of core-shell structures onto electrospun carbon webs for PEM fuel cell MEAs' Electrolysis & Fuel Cell Discussions Conference "Challenges towards zero platinum for oxygen reduction", EFCD 2015, 13 - 16 September 2015, La Grande Motte, France, 1/01/15, .

ALD deposition of core-shell structures onto electrospun carbon webs for PEM fuel cell MEAs. / Heikkilä, Pirjo; Matti, Putkonen (Corresponding author); Pasanen, Antti T.; Rautkoski, Hille; Tapper, Unto; Ihonen, Jari; Bosund, Markus; Geppert, Timon; El-Sayed, Hany; Gasteiger, Hubert A.; Simell, Pekka; Vähä-Nissi, Mika.

2015. Poster session presented at Electrolysis & Fuel Cell Discussions Conference "Challenges towards zero platinum for oxygen reduction", EFCD 2015, 13 - 16 September 2015, La Grande Motte, France, .

Research output: Contribution to conferenceConference PosterScientific

TY - CONF

T1 - ALD deposition of core-shell structures onto electrospun carbon webs for PEM fuel cell MEAs

AU - Heikkilä, Pirjo

AU - Matti, Putkonen

AU - Pasanen, Antti T.

AU - Rautkoski, Hille

AU - Tapper, Unto

AU - Ihonen, Jari

AU - Bosund, Markus

AU - Geppert, Timon

AU - El-Sayed, Hany

AU - Gasteiger, Hubert A.

AU - Simell, Pekka

AU - Vähä-Nissi, Mika

PY - 2015

Y1 - 2015

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. 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 type 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 supports made by making Ti-Nb oxide layers , 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.

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. 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 type 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 supports made by making Ti-Nb oxide layers , 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.

M3 - Conference Poster

ER -

Heikkilä P, Matti P, Pasanen AT, Rautkoski H, Tapper U, Ihonen J et al. ALD deposition of core-shell structures onto electrospun carbon webs for PEM fuel cell MEAs. 2015. Poster session presented at Electrolysis & Fuel Cell Discussions Conference "Challenges towards zero platinum for oxygen reduction", EFCD 2015, 13 - 16 September 2015, La Grande Motte, France, .