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Electrocatalytic Performances of Carbon Supported Metallophthalocyanine and Pt/Metallophthalocyanine Catalysts Towards Dioxygen Reduction in Acidic Medium

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2009

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SPRINGER

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Abstract

Electrocatalytic performances of phthalocyanines (Pcs) involving N-benzyl-4-phenyloxyacetamide moieties, dispersed on a high-surface area carbon substrate, Vulcan XC-72 (VC) and Nafion (Nf), towards oxygen reduction in acidic medium were determined and compared. The VC/Nf/CoPc(5) catalyst showed much higher catalytic activity than those of the other Pc(1-4)-based catalysts (H2Pc 1, ZnPc 2, NiPc 3 and CuPc 4) and that of unsubstituted CoPc-based one. The comparison of the performance of VC/Nf/Pt-5 dual catalyst with that of VC/Nf/Pt one indicated that the former can be a good alternative to the latter as a cathode catalyst both in direct methanol and H-2/O-2 fuel cell applications.

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Phthalocyanines, Platinum, Oxygen reduction, Electrocatalysis, Methanol tolerant catalyst, METAL TETRASULFONATED PHTHALOCYANINES, HIGH-AREA CARBON, OXYGEN-REDUCTION, HYDROGEN-PEROXIDE, COBALT PHTHALOCYANINES, O-2 REDUCTION, ELECTROREDUCTION, METHANOL, ELECTROLYTE, STABILITY

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https://hdl.handle.net/11424/229222

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