Deposition of nanostructured LSM perovskite thin film on dense YSZ substrate by airbrushed solution combustion (ASC) for application in SOFC cathodes
| Autor: | Diego Pereira Tarragó, Vânia Caldas de Sousa, Célia de Fraga Malfatti, Eva Chinarro, B. Moreno |
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| Přispěvatelé: | Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), Consejo Superior de Investigaciones Científicas (España) |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
LSM perovskite Energy Engineering and Power Technology 02 engineering and technology Substrate (electronics) Activation energy 010402 general chemistry 01 natural sciences Oxygen reduction reaction law.invention law SOFC Ceramic Thin film Yttria-stabilized zirconia Perovskite (structure) Renewable Energy Sustainability and the Environment Airbrushed solution combustion (ASC) 021001 nanoscience & nanotechnology Condensed Matter Physics Grain size Cathode 0104 chemical sciences Fuel Technology Chemical engineering visual_art Nanostructured cathode visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2020.02.031 |
| Popis: | [EN] To make SOFC high efficiency energy generation devices, thin ceramic films are proposed as their main components. The rate of the oxygen reduction reaction is relevant for the overall performance of the SOFC, hence a lot of attention is given to the cathodes and their interfaces. The airbrushed solution combustion (ASC) method was used to fabricate an LSM thin film on a dense YSZ substrate. A single phase LSM perovskite was obtained with very thin and interconnected porosity, and a small average grain size (55 nm). The nanostructured LSM thin film electrode showed a low total activation energy (1.27 eV) at high temperatures, but a high area specific resistance at 850°C (55 Ω.cm²). The activation energy for the dissociative adsorption and diffusion of oxygen was significantly low (1.27eV), while the charge transfer and oxygen ion migration activation energy at the LSM/YSZ interface (1.28 eV) was closer to those usually reported. The authors would like to thank Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNpQ) and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) in Brazil and Instituto de Cerámica y Vidrio (ICV) and Consejo Superior de Investigaciones Científicas (CSIC) in Spain. |
| Databáze: | OpenAIRE |
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