Preparation of Sr2(MgMo)1-xRuxO6 ceramics for use in a solid oxide fuel cell anode
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2016
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BRAZILIAN MRS MEETING, 15th
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Resumo
Solid Oxide Fuel Cells are the most efficient devices known for the direct
conversion of fuels into electric energy. Such devices have advanced steadily and
are already available for specific applications such as portable power and
residential stationary generation. The main objective of this work is the
development of anodes for SOFC operating directly with renewable fuels, without
the addition of water and using strategic fuels such as ethanol and natural gas.
Specifically, a family of mixed ionic-electronic compounds has been investigated:
the double perovskites with compositions Sr2(MgMo)1-xRuxO6 with x = 0; 1; 2; 5; 10
e 20 at.%. This material has been synthesized by polymeric precursor method.
The resins were prepared by combining stoichiometric amounts of the starting
solutions. The resulting solution was heated treated under magnetic stirring. The
thermal decomposition of the polymeric resin was studied by means of
simultaneous thermogravimetric and differential scanning calorimetry up to 1500
°C with heating and cooling rates of 10 °/min in Ar. The thermal decomposition
result shows mass loss up to, approximately, 900 °C. However X-ray diffraction
analyses of the powder heat treated at 900 °C and 1200 °C presents a
considerable content of an undesiderate phase (SrMoO4). According to the
literature for similar compounds a thermal treatment under reduction conditions
could be necessary to obtain the double perovskites single phase. After this
treatment the material will be characterized regarding its electrical properties.
The expected results will contribute to advance both the understanding of the
mixed ionic electronic ceramics and the SOFC technology using renewable fuels.
Como referenciar
BEZERRA, MATHEUS E.O.; FONSECA, FABIO C.; FLORIO, DANIEL Z. de. Preparation of Sr2(MgMo)1-xRuxO6 ceramics for use in a solid oxide fuel cell anode. In: BRAZILIAN MRS MEETING, 15th, September 25-29, 2016, Campinas, SP. Abstract... p. 673-673. Disponível em: http://repositorio.ipen.br/handle/123456789/27426. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.