Solid electrolytes for gas sensors and fuel cells applications

Solid electrolytes are wider and wider used in electrochemical devices. They are of peculiar importance to gas sensors, membranes, pumps and fuel cells. The study of the conductivity of the thick film fast ion conducting systems (NASICON and BICUVOX) was carried out using ac impedance spectroscopy. Investigations of changes of electrolytes conductivity with temperature (Arrhenius plots) were carried out. Conducted research was confirmed through practical applications of NASICON in thick film NO2 sensor and BICUVOX solid electrolyte in fuel cell (SOFC). (C) 2001 Elsevier Science Ltd. All rights reserved.