6.5.3 Recent developments in materials for potentiometric sensors

J. Zosel, M. Schelter, W. Oelßner, C. Vonau, U. Enseleit, U. Guth, M. Mertig, V. Voshook, D. Tuchtenhagen & K. Wienand
Electrochemical gas sensors based on Yttria Stabilized Zirconia (YSZ) with mixed potential electrodes are suited for in-situ measurements of low concentrations of combustibles like hydrogen, carbon monoxide, hydrocarbons and also nitrogen oxides. The parameters sensitivity, selectivity and long-term stability of these sensors are correlated mainly with the performance of the electrode material. The contribution will give an overview about recent developments on materials for that purpose. Examples, which are presented in more detail, concern polymer...