CVD graphene supported cobalt (II) phthalocyanine as cathode electrocatalyst for PEM fuel cells

Dursun S., AKAY R. G., Yazici M. S.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.45, sa.60, ss.34837-34844, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 45 Sayı: 60
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.ijhydene.2020.04.168
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Sayfa Sayıları: ss.34837-34844
  • Anahtar Kelimeler: CVD graphene, Cobal phthalocyanine, Oxygen reduction, Fuel cell, OXYGEN REDUCTION REACTION, DOPED GRAPHENE, METAL-CATALYSTS, POLYMER, COMPOSITE
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

For the first time, CVD graphene supported cobalt (II) phthalocyanine (CoPc) is investigated as a possible catalyst to replace Pt cathode in polymer electrolyte membrane (PEM) fuel cells. Impregnation method is utilized for the synthesis of CVD graphene supported CoPc catalyst. Higher heat-treatment temperatures for CoPc/CVD graphene mixtures have resulted with better electrochemical activity and stability. 5% Co/CoPc-G electrode compare to 9.3% Co/CoPc-G for 0.3 mg Co/cm(2) loading has resulted reduced voltage-current characteristics due to kinetic and mass transfer limitations. Operational parameters are evaluated resulting maximum power density of 186 mW/cm(2) with 9.3Co%/CoPc-Graphene, 25-psi backpressure, 100% RH and 80 degrees C operational temperature. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.