Ceramic Chemical Sensors An Overview

Many electrodes used in electro chemical devices including gas purifiers gas sensors fuel cells and chemical analyzers are porous ceramics.

Ceramic chemical sensors an overview.

Some porous electrodes require two mode distributions of pore sizes. Small pores are for the electro chemical reactions while large ones are for flow paths of reactants. Potentiometric sensors make use of thermodynamic equilibration between the gas and the solid. The general bibliography on chemical sensing contains a more complete exposition this chapter develops a taxonomy for this broad sensor class describes some promising application areas e g the detection of toxic chemicals in the environment and highlights the key materials challenges.

Technology road map doe april 2002 temperature monitoring in and above the melt 1350 1600 c longer lasting sheathing material for thermocouples durable ceramic thermistors chemical sensors for polyvalent ion s fe in the melt. Coorstek center for advanced materials. Electrostatic potential drops across interfaces caused by the exchange of ions together with electrons may be used in various ways to measure the concentration of chemical species. Chemical sensors are measurement devices that convert a chemical or physical property of a specific analyte into a measurable signal whose magnitude is normally proportional to the concentration of the analyte.

Chemical sensing principles methods and applications.