Abstract
Thin films of ceramic or ceramic-metal (cermet) electrodes with appropriate structure and morphology are always sought as either electrodes or electrolytes in solid oxide fuel cells (SOFCs) or electrolyzers (SOECs) requiring different morphological and structural characteristics for optimal function. Requirements for the electrodes and electrolytes differ in each case and these dictate operational conditions of the adopted fabrication methods. The solution spray pyrolysis fabrication technique (SSP) is based on molecular deposition and it involves spraying of a solution of suitable constituent metal salts onto a heated substrate. In the present communication, we use this technique to fabricate thin films of Gadolinia (10mole%) stabilized Ceria (CGO10) on dense Zr0.92Y0.08O2-x (YSZ) and La0.3Sr0.7FeO3 (LSF70) substrates and La0.75Sr0.25MnO3 (LSM) and CuO-CeO2 on dense YSZ substrates. Focus is on the thermal characteristics of the constituent salts with respect to correlations with the appropriate deposition temperatures as well as the effect of deposition time.
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