Studies on solid electrolyte gas cells with high-temperature-type proton conductor and oxide ion conductor

Performance of palladium electrode for electrochemical hydrogen pump using strontium-zirconate-based proton conductors

“…The schematic illustration of the electrochemical hydrogen pumps is shown in Fig. 1 [2][3][4]9]. Perovskite-type oxides, which exhibit proton conduction at around 800°C [8][9][10][11][12][13][14][15], are used as an electrolyte in this system.…”

Ionic conductivity and dielectric relaxation in Y doped La2Mo2O9 oxide-ion conductors

“…[1][2][3][4] From past several decades, yttria-stabilized zirconia has been used as an oxide ion conductor. 5 However, its low oxygen mobility below 1300 K restricts its use as an electrolyte in solid oxide fuel cells. 6 Recently, La 2 Mo 2 O 9 becomes a promising oxide ion conductor at low operating temperatures.…”

Chemical Diffusion Coefficient of H2O in AB(1−x)B′xO(3−x/2)‐Type Perovskites

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Doping with a lower valent ion creates oxygen vacancies. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Doping with a lower valent ion creates oxygen vacancies.…”

“…§ Equation (1) suggests that even when X 3 1, D H 2 O 0. The range of X is between 0 and 1, for all practical purposes, although in principle X can exceed 1.…”

“…M ANY oxide perovskites when doped on the B-site with a lower valent ion become proton conductors in water-containing atmospheres. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Doping with a lower valent ion creates oxygen vacancies. When heated in a moist environment, water is absorbed filling up oxygen vacancies, thereby introducing quasi-free protons into the structure.…”