Core-shell TiO2@C: towards alternative supports as replacement for high surface area carbon for PEMFC catalysts

Alessandro Zana; Celine Ruediger; Julia Kunze-Liebhaeuser; Gaetano  Granozzi; Nini Elisabeth Abildgaard Reeler; Tom André Jos Vosch; Jacob Judas Kain Kirkensgaard; Matthias Arenz

doi:10.1016/j.electacta.2014.07.002

Core-shell TiO2@C: towards alternative supports as replacement for high surface area carbon for PEMFC catalysts

Alessandro Zana, Celine Ruediger, Julia Kunze-Liebhaeuser, Gaetano Granozzi, Nini Elisabeth Abildgaard Reeler, Tom André Jos Vosch, Jacob Judas Kain Kirkensgaard, Matthias Arenz

31 Citations (Scopus)

Abstract

In this work, corrosion resistant TiO₂@C powder was tested as possible alternative to standard carbon black supports for polymer electrolyte membrane fuel cells. We separately prepared a stock solution of well-defined Pt nanoparticles and different support materials, and thereafter supported the NPs on the respective supports. As result we obtained high Pt dispersion on TiO ₂@C supports comparable to conventional high surface area Pt/C catalysts. Accelerated stress tests were carried out in accordance with the Fuel Cell Commercialization Conference of Japan recommendations. The tests demonstrated improved corrosion resistance of Pt/TiO₂@C (as compared to Pt/C) when probing start/stop or mixed load cycle and start/stop conditions, whereas similar stability was observed when probing load cycle conditions only.

Original language	English
Journal	Electrochimica Acta
Volume	139
Pages (from-to)	21–28
Number of pages	8
ISSN	0013-4686
DOIs	https://doi.org/10.1016/j.electacta.2014.07.002
Publication status	Published - 1 Sept 2014

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title = "Core-shell TiO2@C: towards alternative supports as replacement for high surface area carbon for PEMFC catalysts",

abstract = "In this work, corrosion resistant TiO2@C powder was tested as possible alternative to standard carbon black supports for polymer electrolyte membrane fuel cells. We separately prepared a stock solution of well-defined Pt nanoparticles and different support materials, and thereafter supported the NPs on the respective supports. As result we obtained high Pt dispersion on TiO 2@C supports comparable to conventional high surface area Pt/C catalysts. Accelerated stress tests were carried out in accordance with the Fuel Cell Commercialization Conference of Japan recommendations. The tests demonstrated improved corrosion resistance of Pt/TiO2@C (as compared to Pt/C) when probing start/stop or mixed load cycle and start/stop conditions, whereas similar stability was observed when probing load cycle conditions only.",

author = "Alessandro Zana and Celine Ruediger and Julia Kunze-Liebhaeuser and Gaetano Granozzi and Reeler, {Nini Elisabeth Abildgaard} and Vosch, {Tom Andr{\'e} Jos} and Kirkensgaard, {Jacob Judas Kain} and Matthias Arenz",

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doi = "10.1016/j.electacta.2014.07.002",

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TY - JOUR

T1 - Core-shell TiO2@C

T2 - towards alternative supports as replacement for high surface area carbon for PEMFC catalysts

AU - Zana, Alessandro

AU - Ruediger, Celine

AU - Kunze-Liebhaeuser, Julia

AU - Granozzi, Gaetano

AU - Reeler, Nini Elisabeth Abildgaard

AU - Vosch, Tom André Jos

AU - Kirkensgaard, Jacob Judas Kain

AU - Arenz, Matthias

PY - 2014/9/1

Y1 - 2014/9/1

N2 - In this work, corrosion resistant TiO2@C powder was tested as possible alternative to standard carbon black supports for polymer electrolyte membrane fuel cells. We separately prepared a stock solution of well-defined Pt nanoparticles and different support materials, and thereafter supported the NPs on the respective supports. As result we obtained high Pt dispersion on TiO 2@C supports comparable to conventional high surface area Pt/C catalysts. Accelerated stress tests were carried out in accordance with the Fuel Cell Commercialization Conference of Japan recommendations. The tests demonstrated improved corrosion resistance of Pt/TiO2@C (as compared to Pt/C) when probing start/stop or mixed load cycle and start/stop conditions, whereas similar stability was observed when probing load cycle conditions only.

AB - In this work, corrosion resistant TiO2@C powder was tested as possible alternative to standard carbon black supports for polymer electrolyte membrane fuel cells. We separately prepared a stock solution of well-defined Pt nanoparticles and different support materials, and thereafter supported the NPs on the respective supports. As result we obtained high Pt dispersion on TiO 2@C supports comparable to conventional high surface area Pt/C catalysts. Accelerated stress tests were carried out in accordance with the Fuel Cell Commercialization Conference of Japan recommendations. The tests demonstrated improved corrosion resistance of Pt/TiO2@C (as compared to Pt/C) when probing start/stop or mixed load cycle and start/stop conditions, whereas similar stability was observed when probing load cycle conditions only.

U2 - 10.1016/j.electacta.2014.07.002

DO - 10.1016/j.electacta.2014.07.002

M3 - Journal article

SN - 0013-4686

VL - 139

SP - 21

EP - 28

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Core-shell TiO2@C: towards alternative supports as replacement for high surface area carbon for PEMFC catalysts

Abstract

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