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Characterization of different Pt/Metal/Complex catalysts as anode catalysts for the PEM fuel cell

Martz, N. and Roth, C. and Fuess, H. (2005):
Characterization of different Pt/Metal/Complex catalysts as anode catalysts for the PEM fuel cell.
In: Journal of Applied Electrochemistry, Kluwer Academic Publishers, pp. 85-90, 35, (1), ISSN 0021-891X,
[Online-Edition: http://dx.doi.org/10.1007/s10800-004-4059-9],
[Article]

Abstract

Different Pt/Me/Pc and Pt/Me/Complex catalysts (with Me=Metal: Co, Ni, and Pc=phthalocyanine) were synthesized by an impregnation method. A commercially available platinum catalyst purchased from E-TEK. was impregnated with solutions of cobalt phthalocyanine (CoPc) and nickel phthalocyanine tetrasulfonic salt (NiPc). After the reaction, part of the catalyst was heat treated at 700 °C under nitrogen atmosphere. The resulting catalysts were structurally and electrochemically characterized before (Pt/Me/Pc) and after heat treatment (Pt/Me/Complex). The Pt/Me/Pc had an average particle size of about 3 nm, while the average size after heat treatment increased to about 7nm. The composition of the different catalysts was about 80at platinum and 20at of the second metal (Co or Ni), and was verified with EDXS. In single fuel cell tests the best electrocatalytic activity was observed for the Pt/Ni/Complex system.

Item Type: Article
Erschienen: 2005
Creators: Martz, N. and Roth, C. and Fuess, H.
Title: Characterization of different Pt/Metal/Complex catalysts as anode catalysts for the PEM fuel cell
Language: English
Abstract:

Different Pt/Me/Pc and Pt/Me/Complex catalysts (with Me=Metal: Co, Ni, and Pc=phthalocyanine) were synthesized by an impregnation method. A commercially available platinum catalyst purchased from E-TEK. was impregnated with solutions of cobalt phthalocyanine (CoPc) and nickel phthalocyanine tetrasulfonic salt (NiPc). After the reaction, part of the catalyst was heat treated at 700 °C under nitrogen atmosphere. The resulting catalysts were structurally and electrochemically characterized before (Pt/Me/Pc) and after heat treatment (Pt/Me/Complex). The Pt/Me/Pc had an average particle size of about 3 nm, while the average size after heat treatment increased to about 7nm. The composition of the different catalysts was about 80at platinum and 20at of the second metal (Co or Ni), and was verified with EDXS. In single fuel cell tests the best electrocatalytic activity was observed for the Pt/Ni/Complex system.

Journal or Publication Title: Journal of Applied Electrochemistry
Volume: 35
Number: 1
Publisher: Kluwer Academic Publishers
Uncontrolled Keywords: BET, chelate, DMFC, EDXS, PEMFC, platinum, TEM, XRD
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Erneuerbare Energien
11 Department of Materials and Earth Sciences > Material Science > Structure Research
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 12 Mar 2014 12:38
Official URL: http://dx.doi.org/10.1007/s10800-004-4059-9
Identification Number: doi:10.1007/s10800-004-4059-9
Funders: Support of this work by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie is gratefully acknowledge
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