Perovskite-type proton conductor for novel direct ionic thermoelectric hydrogen sensor

BaCeO3: Materials development, properties and application

“…The EMF of the cell increased linearly with a decrease in the hydrogen partial pressure in the gas phase and an increase in the temperature from 200 to 900°C, in accordance with the Nernst law.Röder-Roith et al[238] used the proton conducting material BaCe 0.95 Y 0.05 O 3− (BCY) to construct a Pt|BCY|Pt thermocell and measured the hydrogen sensitive thermovoltage at temperatures of 400-600 °C in the range of 0.2-2 vol. % H 2 .…”

Platinum Uptake and Ba2CePtO6 Formation During in Situ BaCe1–xMxO3−δ (M = La, In) Formation

“…The diverse functions of perovskite phases are due to their structural and compositional tolerance and being capable of accommodating almost any cation . During the last 25 years, proton conducting perovskites have been investigated intensely for applications in electrochemical devices, such as fuel cells, sensors, H 2 generation, and extraction. − One of these perovskites of interest for solid-state proton conduction applications is the cation-doped barium cerate. Doped BaCeO 3 compounds are electronic insulators and thus find applications as solid-state proton conductors in fuel cells .…”

Hydrogen Sensing Characteristics of a Quartz Oscillator

“…and Jones T. A., 1986;Han C.-H. et al, 2007;Jones M. G. and Nevell T. G., 1989;Katti V. R. et al, 2002). This heat produced by combustion is transformed into electrical energy using thermoelectric materials, such as Si, SiGe, SnO2, Pt/Al2O3, Pt/activated carbon fiber cloth, and BaCe0.95Y0.05O3 -δ(BCY), in thermoelectric sensors (Mcaleer J. F. et al, 1985;Nishibori M. et al, 2007;Nishibori M. et al, 2010;Qiu F. B. et al, 2003;Röder-Roith U. et al, 2011;Shin W. et al, 2001;Zhang J. S. et al, 2007). Changes in the resistivity and surface conductivity on the oxide semiconductor induced by the reaction between surface oxygen and hydrogen detects hydrogen in oxide semiconductor sensors (Lundstrom K. I. et al, 1975).…”