GAS SENSOR, FUEL SUPPLY SYSTEM USING THE SAME, AND METHOD OF USING GAS SENSOR

摘要

A gas sensor (10) has a gas diffusion barrier (114) that supports therein a catalyst that catalyzes a reaction between combustible components and oxygen; a solid electrolyte (118) having oxide ion conductivity; and electrodes (116, 120) formed on opposite surfaces of the solid electrolyte (118). The electrode (116) is formed in a region into which ambient gas diffuses at a rate limited by the gas diffusion barrier (114). The electrode (116) also catalyzes the reaction between combustible gas and oxygen. The electrode (120) is formed in a region into which atmosphere is introduced.