Experimental investigation on the effect of anode functional layer on the performance of anode supported micro-tubular SOFCs

Timurkutluk C., Bilgil K., Celen A., Onbilgin S., Altan T., Aydin U.

International Journal of Hydrogen Energy, cilt.47, sa.45, ss.19741-19751, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47 Sayı: 45
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.ijhydene.2021.09.260
  • Dergi Adı: International Journal of Hydrogen Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Communication Abstracts, Environment Index, INSPEC
  • Sayfa Sayıları: ss.19741-19751
  • Anahtar Kelimeler: Solid oxide fuel cell, Micro-tubular, Anode functional layer, Powder size, Thickness, Sintering temperature
  • Erzincan Binali Yıldırım Üniversitesi Adresli: Evet

Özet

© 2021 Hydrogen Energy Publications LLCIn this study, anode supported micro-tubular solid oxide fuel cells (SOFCs) are fabricated by extrusion method and the effects of powder size, thickness and sintering temperature of the anode functional layer (AFL) on the electrochemical performance is experimentally investigated. For this purpose, four different commercial NiO powders are tested as initial powder for the fabrication of the anode functional layer. The thickness of AFL is also considered by varying the number of coatings. After deciding the optimum initial NiO powder size used in AFL and AFL thickness, the effect of pre-sintering temperature is examined. The performance tests are performed at an operating temperature of 800 °C under hydrogen and air. The microstructures of the samples are also investigated by a scanning electron microscope. The best peak power density is obtained as ∼0.5 W/cm2 from the cell having a single layer anode functional layer pre-sintered at 1250 °C prepared by NiO powders with 4 m2/g surface area.