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

Koc I., Camur M., Bulut M., Ozkaya A. R.

CATALYSIS LETTERS, cilt.131, ss.370-380, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 131
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1007/s10562-009-0075-z
  • Dergi Adı: CATALYSIS LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.370-380
  • Anahtar Kelimeler: 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
  • Marmara Üniversitesi Adresli: Evet

Özet

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.