Thermoelectric properties of Ca2.8Cu0.2Co4O9 ceramics fabricated by solution combustion method

Park, K.; Nam, Sang-Hee

doi:10.1016/j.cap.2010.12.019

Cited by 4 publications

(1 citation statement)

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“…The effect of the combustion fuel on the properties of heterometallic oxides, and especially of SOFC materials prepared by SCS, has been investigated recently, for both single fuels and fuel mixtures [28][29][30]. In particular, it has been found that the fuel type affects the microstructural properties of the powders [29][30][31], the phase formation mechanism [28] and the electrical conducting properties [29,31,32] of the final material. Nevertheless, only very general explanations about the effect of the combustion fuel have been so far proposed.…”

Section: Introductionmentioning

confidence: 99%

Strontium and iron-doped barium cobaltite prepared by solution combustion synthesis: exploring a mixed-fuel approach for tailored intermediate temperature solid oxide fuel cell cathode materials

Deganello

Liotta

Marcı̀

et al. 2013

Mater Renew Sustain Energy

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Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-d (BSCF) powders were prepared by solution combustion synthesis using single and double fuels. The effect of the fuel mixture on the main properties of this well-known solid oxide fuel cell cathode material with high oxygen ion and electronic conduction was investigated in detail. Results showed that the fuel mixture significantly affected the area-specific resistance of the BSCF cathode materials, by controlling the oxygen deficiency and stabilizing the Co 2? oxidation state. It was demonstrated that high fuel-to-metal cations molar ratios and high reducing power of the combustion fuel mixture are mainly responsible for the decreasing of the area-specific resistance of BSCF cathode materials. Moreover, a new metastable monoclinic phase with Ba 0.5 Sr 0.5 CO 3 composition was discovered in the as-burned BSCF powders, enlarging the existing information on the BSCF phase formation mechanism. Keywords Solution combustion synthesis Á Intermediate temperature solid oxide fuel cells Á Cathode materials Á Combustion fuel mixture Á BSCF Á Perovskite-type compounds Electronic supplementary material The online version of this article (

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