Abstract
The ferroelectric phase KNbO3 dispersed composites of Na2CO3 were prepared and studied for its applicability as an electrolyte/sensing electrode in electrochemical sensors. The composites were characterized with in-situ impedance measurements under different CO2 gas partial pressures and transport number measurements. The dispersoid was found modifying the conduction mechanism of ions as revealed from impedance spectroscopy. The electrolyte showed variation in the electrical conductivities in presence of the test gas. Significant improvement in the response time of the electrochemical CO2 gas sensor was observed while using this composite as an electrolyte cum sensing electrode.
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