Structural, Microstructural and Electrochemical Characterization of Ni-YSZ Anodes Fabricated from Pechini-Derived Composite Powders

Buse BİLBEY; Gamze EROL; Aligül BÜYÜKAKSOY

doi:https://doi.org/10.16984/saufenbilder.659147

Makale detayları

Structural, Microstructural and Electrochemical Characterization of Ni-YSZ Anodes Fabricated from Pechini-Derived Composite Powders

Yazarlar:

Buse BİLBEY | Gamze EROL | Aligül BÜYÜKAKSOY

Ana Başlıklar:

İmalat

Dergi:

Sakarya University Journal of Science 2020 Vol.24 Issue 4, pp.740-750

Belge Tipi:

Makale

Yayın Tarihi:

7/2020

Belge Dili:

İngilizce

Document ID (Org No.):

2000556778

DOI:

https://doi.org/10.16984/saufenbilder.659147

Özet:

 

The most widely used solid oxide fuel cell (SOFC) anodes, nickel-yttria stabilized zirconia (NiO-YSZ) composites, are generally fabricated by co-sintering of NiO and YSZ powders. In this study, to achieve a longer triple phase boundary length, these composites were fabricated from powders synthesized via an ethylene glycol-based Pechini method. Polymeric precursors of NiO and YSZ were prepared separately and then mixed, dried and calcined 600, 700 and 800°C for 4 hours, in air. NiO and YSZ crystals with average sizes of 26 and 7 nm, respectively were achieved upon calcination at 600 °C. With increasing heat treatment temperature, both the crystal and agglomerate sizes increased, which, in turn, an increased the anode polarization resistances. Electrochemical activities comparable to or higher than anode prepared by co-sintering of powder mixtures were achieved in the anodes prepared by sintering of the composite powders.

Makale detayları

Structural, Microstructural and Electrochemical Characterization of Ni-YSZ Anodes Fabricated from Pechini-Derived Composite Powders

Yazarlar: Buse BİLBEY | Gamze EROL | Aligül BÜYÜKAKSOY

Ana Başlıklar: İmalat

Dergi: Sakarya University Journal of Science 2020 Vol.24 Issue 4, pp.740-750

Belge Tipi: Makale

Yayın Tarihi: 7/2020

Belge Dili: İngilizce

Document ID (Org No.): 2000556778

DOI: https://doi.org/10.16984/saufenbilder.659147

Sayı

Yazarlar:

Buse BİLBEY | Gamze EROL | Aligül BÜYÜKAKSOY

Ana Başlıklar:

İmalat

Dergi:

Sakarya University Journal of Science 2020 Vol.24 Issue 4, pp.740-750

Belge Tipi:

Makale

Yayın Tarihi:

7/2020

Belge Dili:

İngilizce

Document ID (Org No.):

2000556778

DOI:

https://doi.org/10.16984/saufenbilder.659147