Electro- and physicochemical analysis of catalyst coated membranes

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschung

Abstract

Cost-effective production of catalyst coated membranes (CCM) is one of the key challenges for the successful realisation of fuel cell stacks ready for commercialisation. It represents the core component of the membrane electrode assembly, which is the centrepiece of the fuel cell repeating unit. The most plausible ways to achieve reasonable fuel cell unit price per kilowatt installed, are increasing cell performance and reducing material costs of the most cost-intensive part of the system; the cathode. Recently, the content of expensive platinum in the cathode catalyst was reduced, while simultaneously increasing the activity towards the oxygen reduction reaction by using binary PtM - systems (M = Co, Ni, Cu, e.a.) as active particles on the carbon support. Reproduction of these promising results at single cell level has only been partially achieved, owing to the complex interactions between solid electrolyte (ionomer), reactant gases and catalyst. The lack of reproducible means of membrane electrode assembly preparation is adding up to the challenge.
Automated CCM production, allows the detailed and reproducible experimental analysis of interactions between catalyst, ionomer and reactant gases. PtCu3/C and Pt/C with three different carbon-to-metal ratios are used to prepare cathode active layers with varying structure. TEM images of the pure catalyst and SEM/EDX of CCM cross sections are recorded to obtain structural information. Additionally, electrochemical impedance spectroscopy (EIS), polarisation curves and cyclic voltammetry supply the information needed to study the influence of the catalysts physical- and chemical structure on fuel cell operation and in-situ catalyst activity.
Originalspracheenglisch
TitelInterdisciplinary Endeavour in Technology at Nanoscale, Water and Environment
UntertitelBook of Abstracts
Redakteure/-innenVlasta Bonačić-Koutecký
ErscheinungsortSplit
Herausgeber (Verlag)Mediterranean Institute for Life Sciences, Split, Croatia
PublikationsstatusVeröffentlicht - 9 Okt 2019
Veranstaltung2019 Research Workshop Interdisciplinary Endeavour in Technology at Nanoscale, Water and Environment - Split, Kroatien
Dauer: 9 Okt 201911 Okt 2019

Konferenz

Konferenz2019 Research Workshop Interdisciplinary Endeavour in Technology at Nanoscale, Water and Environment
KurztitelSTIM-REI Research Workshop 2019
LandKroatien
OrtSplit
Zeitraum9/10/1911/10/19

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Membranes
Catalysts
Fuel cells
Cathodes
Ionomers
Carbon
Gases
Costs
Electrodes
Solid electrolytes
Platinum
Electrochemical impedance spectroscopy
Cyclic voltammetry
Energy dispersive spectroscopy
Catalyst activity
Metals
Polarization
Oxygen
Transmission electron microscopy
Scanning electron microscopy

Schlagwörter

    Fields of Expertise

    • Mobility & Production

    Dies zitieren

    Grandi, M., Gatalo, M., Mayer, K., Marius, B., Kapun, G., & Hacker, V. (2019). Electro- and physicochemical analysis of catalyst coated membranes. in V. Bonačić-Koutecký (Hrsg.), Interdisciplinary Endeavour in Technology at Nanoscale, Water and Environment: Book of Abstracts Split: Mediterranean Institute for Life Sciences, Split, Croatia.

    Electro- and physicochemical analysis of catalyst coated membranes. / Grandi, Maximilian; Gatalo, Matija; Mayer, Kurt; Marius, Bernhard; Kapun, Gregor; Hacker, Viktor.

    Interdisciplinary Endeavour in Technology at Nanoscale, Water and Environment: Book of Abstracts. Hrsg. / Vlasta Bonačić-Koutecký. Split : Mediterranean Institute for Life Sciences, Split, Croatia, 2019.

    Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschung

    Grandi, M, Gatalo, M, Mayer, K, Marius, B, Kapun, G & Hacker, V 2019, Electro- and physicochemical analysis of catalyst coated membranes. in V Bonačić-Koutecký (Hrsg.), Interdisciplinary Endeavour in Technology at Nanoscale, Water and Environment: Book of Abstracts. Mediterranean Institute for Life Sciences, Split, Croatia, Split, Split, Kroatien, 9/10/19.
    Grandi M, Gatalo M, Mayer K, Marius B, Kapun G, Hacker V. Electro- and physicochemical analysis of catalyst coated membranes. in Bonačić-Koutecký V, Hrsg., Interdisciplinary Endeavour in Technology at Nanoscale, Water and Environment: Book of Abstracts. Split: Mediterranean Institute for Life Sciences, Split, Croatia. 2019
    Grandi, Maximilian ; Gatalo, Matija ; Mayer, Kurt ; Marius, Bernhard ; Kapun, Gregor ; Hacker, Viktor. / Electro- and physicochemical analysis of catalyst coated membranes. Interdisciplinary Endeavour in Technology at Nanoscale, Water and Environment: Book of Abstracts. Hrsg. / Vlasta Bonačić-Koutecký. Split : Mediterranean Institute for Life Sciences, Split, Croatia, 2019.
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    title = "Electro- and physicochemical analysis of catalyst coated membranes",
    abstract = "Cost-effective production of catalyst coated membranes (CCM) is one of the key challenges for the successful realisation of fuel cell stacks ready for commercialisation. It represents the core component of the membrane electrode assembly, which is the centrepiece of the fuel cell repeating unit. The most plausible ways to achieve reasonable fuel cell unit price per kilowatt installed, are increasing cell performance and reducing material costs of the most cost-intensive part of the system; the cathode. Recently, the content of expensive platinum in the cathode catalyst was reduced, while simultaneously increasing the activity towards the oxygen reduction reaction by using binary PtM - systems (M = Co, Ni, Cu, e.a.) as active particles on the carbon support. Reproduction of these promising results at single cell level has only been partially achieved, owing to the complex interactions between solid electrolyte (ionomer), reactant gases and catalyst. The lack of reproducible means of membrane electrode assembly preparation is adding up to the challenge. Automated CCM production, allows the detailed and reproducible experimental analysis of interactions between catalyst, ionomer and reactant gases. PtCu3/C and Pt/C with three different carbon-to-metal ratios are used to prepare cathode active layers with varying structure. TEM images of the pure catalyst and SEM/EDX of CCM cross sections are recorded to obtain structural information. Additionally, electrochemical impedance spectroscopy (EIS), polarisation curves and cyclic voltammetry supply the information needed to study the influence of the catalysts physical- and chemical structure on fuel cell operation and in-situ catalyst activity.",
    keywords = "Fuel Cell, Catalyst Coated Membrane, Oxygen Reduction Reaction, Electrochemical Impedance Spectroscopy, Single Cell",
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    T1 - Electro- and physicochemical analysis of catalyst coated membranes

    AU - Grandi, Maximilian

    AU - Gatalo, Matija

    AU - Mayer, Kurt

    AU - Marius, Bernhard

    AU - Kapun, Gregor

    AU - Hacker, Viktor

    PY - 2019/10/9

    Y1 - 2019/10/9

    N2 - Cost-effective production of catalyst coated membranes (CCM) is one of the key challenges for the successful realisation of fuel cell stacks ready for commercialisation. It represents the core component of the membrane electrode assembly, which is the centrepiece of the fuel cell repeating unit. The most plausible ways to achieve reasonable fuel cell unit price per kilowatt installed, are increasing cell performance and reducing material costs of the most cost-intensive part of the system; the cathode. Recently, the content of expensive platinum in the cathode catalyst was reduced, while simultaneously increasing the activity towards the oxygen reduction reaction by using binary PtM - systems (M = Co, Ni, Cu, e.a.) as active particles on the carbon support. Reproduction of these promising results at single cell level has only been partially achieved, owing to the complex interactions between solid electrolyte (ionomer), reactant gases and catalyst. The lack of reproducible means of membrane electrode assembly preparation is adding up to the challenge. Automated CCM production, allows the detailed and reproducible experimental analysis of interactions between catalyst, ionomer and reactant gases. PtCu3/C and Pt/C with three different carbon-to-metal ratios are used to prepare cathode active layers with varying structure. TEM images of the pure catalyst and SEM/EDX of CCM cross sections are recorded to obtain structural information. Additionally, electrochemical impedance spectroscopy (EIS), polarisation curves and cyclic voltammetry supply the information needed to study the influence of the catalysts physical- and chemical structure on fuel cell operation and in-situ catalyst activity.

    AB - Cost-effective production of catalyst coated membranes (CCM) is one of the key challenges for the successful realisation of fuel cell stacks ready for commercialisation. It represents the core component of the membrane electrode assembly, which is the centrepiece of the fuel cell repeating unit. The most plausible ways to achieve reasonable fuel cell unit price per kilowatt installed, are increasing cell performance and reducing material costs of the most cost-intensive part of the system; the cathode. Recently, the content of expensive platinum in the cathode catalyst was reduced, while simultaneously increasing the activity towards the oxygen reduction reaction by using binary PtM - systems (M = Co, Ni, Cu, e.a.) as active particles on the carbon support. Reproduction of these promising results at single cell level has only been partially achieved, owing to the complex interactions between solid electrolyte (ionomer), reactant gases and catalyst. The lack of reproducible means of membrane electrode assembly preparation is adding up to the challenge. Automated CCM production, allows the detailed and reproducible experimental analysis of interactions between catalyst, ionomer and reactant gases. PtCu3/C and Pt/C with three different carbon-to-metal ratios are used to prepare cathode active layers with varying structure. TEM images of the pure catalyst and SEM/EDX of CCM cross sections are recorded to obtain structural information. Additionally, electrochemical impedance spectroscopy (EIS), polarisation curves and cyclic voltammetry supply the information needed to study the influence of the catalysts physical- and chemical structure on fuel cell operation and in-situ catalyst activity.

    KW - Fuel Cell

    KW - Catalyst Coated Membrane

    KW - Oxygen Reduction Reaction

    KW - Electrochemical Impedance Spectroscopy

    KW - Single Cell

    M3 - Conference contribution

    BT - Interdisciplinary Endeavour in Technology at Nanoscale, Water and Environment

    A2 - Bonačić-Koutecký, Vlasta

    PB - Mediterranean Institute for Life Sciences, Split, Croatia

    CY - Split

    ER -