“…The possibility of using barium cerate based materials in hydrogen sensors has been studied in several works [234][235][236]. Taniguchi Hydrocarbons (CH 4 , C 2 H 4 , C 6 H 4 ), CO 2 and N 2 appeared to be inert according to the hydrogen sensor at 200°C and they behaved only as a diluent for hydrogen.…”