Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Solid electrolytes based on CeO 2 for medium-temperature electrochemical devices. / Pikalova, E. Yu; Bamburov, V. G.; Murashkina, A. A.; Neuimin, A. D.; Demin, A. K.; Plaksin, S. V.
в: Russian Journal of Electrochemistry, Том 47, № 6, 2011, стр. 690-696.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Solid electrolytes based on CeO 2 for medium-temperature electrochemical devices
AU - Pikalova, E. Yu
AU - Bamburov, V. G.
AU - Murashkina, A. A.
AU - Neuimin, A. D.
AU - Demin, A. K.
AU - Plaksin, S. V.
N1 - Funding Information: ACKNOWLEDGMENTS The work was financially supported by the Russian Foundation for Basic Research (project no. 09 03 00181).
PY - 2011
Y1 - 2011
N2 - CeO 2-based solid solutions with a fluorite structure are promising materials as electrolytes of medium-temperature electrochemical devices: electrolytic cells, oxygen sensors, and solid oxide fuel cells. In this work, studies are presented of the effect of the dopant cation radius and its concentration on the physico-chemical properties of the Ce 1-xLn xO 2-δ solid solutions (x = 0-0.20; Ln = La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb) and also of multicomponent solid solutions of Ce 1-xLn x/2L O 2-δ (x = 0-0.20; Ln = Sm, La, Gd and Ln' = Dy, Nd, Y) and Ce 1-x-ySm xMyO 2-δ (M = Ca, Sr, Ba) obtained using the solid-phase synthesis technique. Electric properties of the samples were studied in the temperature range of 623-1173 K and in the oxygen partial pressure range of 0.01-10 -22 MPa. The values of oxygen critical pressure (PO* 2) are presented, at which the ionic and electron conductivity values are equal. The values were calculated on the basis of experimental dependences at 1023 K at the assumption that the ionic conductivity value is determined only by the dopant concentration and its effective ionic radius and is independent of the oxygen partial pressure.
AB - CeO 2-based solid solutions with a fluorite structure are promising materials as electrolytes of medium-temperature electrochemical devices: electrolytic cells, oxygen sensors, and solid oxide fuel cells. In this work, studies are presented of the effect of the dopant cation radius and its concentration on the physico-chemical properties of the Ce 1-xLn xO 2-δ solid solutions (x = 0-0.20; Ln = La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb) and also of multicomponent solid solutions of Ce 1-xLn x/2L O 2-δ (x = 0-0.20; Ln = Sm, La, Gd and Ln' = Dy, Nd, Y) and Ce 1-x-ySm xMyO 2-δ (M = Ca, Sr, Ba) obtained using the solid-phase synthesis technique. Electric properties of the samples were studied in the temperature range of 623-1173 K and in the oxygen partial pressure range of 0.01-10 -22 MPa. The values of oxygen critical pressure (PO* 2) are presented, at which the ionic and electron conductivity values are equal. The values were calculated on the basis of experimental dependences at 1023 K at the assumption that the ionic conductivity value is determined only by the dopant concentration and its effective ionic radius and is independent of the oxygen partial pressure.
KW - Ceria
KW - Electrolytic properties
KW - Medium-temperature electrochemical devices
KW - Oxygen conductivity
KW - Solid oxide electrolytes
UR - http://www.scopus.com/inward/record.url?scp=84856283331&partnerID=8YFLogxK
U2 - 10.1134/S1023193511060127
DO - 10.1134/S1023193511060127
M3 - Article
AN - SCOPUS:84856283331
VL - 47
SP - 690
EP - 696
JO - Russian Journal of Electrochemistry
JF - Russian Journal of Electrochemistry
SN - 1023-1935
IS - 6
ER -
ID: 85231825