Optimization of spin-coated electrodes for electrolyte-supported solid oxide fuel cells

Autor(es)

Shayenne Diniz da Nobrega ^[1] ; Natalia Kondo Monteiro ^[2] ; Francisco Tabuti ^[3] ; Daniel Zanetti de Florio ^[4] ; Fabio Coral Fonseca ^[5]

Afiliação do(s) autor(es)

^[1] Instituto de Pesquisas Energéticas e Nucleares - Brasil

^[2] Instituto de Pesquisas Energéticas e Nucleares - Brasil

^[3] Instituto de Pesquisas Energéticas e Nucleares - Brasil

^[4] Universidade Federal do ABC - Brasil

^[5] Instituto de Pesquisas Energéticas e Nucleares - Brasil

• Tipo de documento: Artigo Científico
• Fonte: MATERIA-RIO DE JANEIRO; v. 22, n. 1 2017-05-22.

Resumo

ABSTRACT Electrodes for electrolyte-supported solid oxide fuel cells (SOFC's) were fabricated by spin coating. Strontium-doped lanthanum manganite (LSM) cathode and nickel yttria-stabilized zirconia cermet anodes were synthesized and processed for enhanced deposition conditions. The influence of electrode microstructural parameters was investigated by a systematic experimental procedure aiming at optimized electrochemical performance of single cells. Polarization curves showed a strong dependence on both electrode thickness and sintering temperature. By a systematic control of such parameters, the performance of single cells was significantly enhanced due to decreasing of polarization resistance from 26 Ω cm² to 0.6 Ω cm² at 800°C. The results showed that spin-coated electrodes can be optimized for fast and cost effective fabrication of SOFCs. (AU)

• Processo FAPESP: 14/09087-4 - Estudos sobre o uso do bioetanol em células a combustível do tipo PEMFC e SOFC
• Beneficiário: Marcelo Linardi
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 13/26961-7 - Desenvolvimento de ânodos de células a combustível de óxidos sólidos operando diretamente com combustíveis renováveis
• Beneficiário: Fabio Coral Fonseca
• Modalidade de apoio: Auxílio à Pesquisa - Regular