| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1298501 | Solid State Ionics | 2005 | 5 Pages |
The characteristics of novel BaZr0.4Ce0.4In0.2O3 (BZCI) proton conducting ceramics and their application to hydrogen sensors were investigated. Their properties were examined by the EMF responses of a hydrogen concentration cell and an electrochemical hydrogen permeation test. The BZCI ceramic exhibited good proton conduction in an atmosphere containing hydrogen in the temperature range of 300–700 °C. To verify that these ceramics are practical protonic conductors, limiting-current-type hydrogen sensors using BZCI ceramics as electrolytes were constructed. They exhibited good sensing properties in a reducing atmosphere and hardly degraded on repeated use. BZCI seems to be a very useful protonic conductor in terms of reliability and conduction.
