Defect structure analysis of B-site doped perovskite-type proton conducting oxide BaCeO3Part 2: The electrical conductivity and diffusion coefficient of BaCe0.9Y0.1O3−δ

2008 ◽  
Vol 179 (39) ◽  
pp. 2240-2247 ◽  
Author(s):  
M OISHI ◽  
S AKOSHIMA ◽  
K YASHIRO ◽  
K SATO ◽  
J MIZUSAKI ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Diffusion Coefficient ◽  
Structure Analysis ◽  
Defect Structure ◽  
Proton Conducting ◽  
And Diffusion ◽  
Perovskite Type

Defect structure analysis of B-site doped perovskite-type proton conducting oxide BaCeO3 Part 1: The defect concentration of BaCe0.9M0.1O3−δ (M=Y and Yb)

2009 ◽  
Vol 180 (2-3) ◽  
pp. 127-131 ◽  
Author(s):  
Masatsugu Oishi ◽  
Satoshi Akoshima ◽  
Keiji Yashiro ◽  
Kazuhisa Sato ◽  
Junichiro Mizusaki ◽  
...  
Keyword(s):  
Structure Analysis ◽  
Defect Structure ◽  
Defect Concentration ◽  
Proton Conducting ◽  
Perovskite Type

Study on the Perovskite-type Oxide Cathodes in Proton-conducting SOFC

2006 ◽  
Vol 972 ◽  
Author(s):  
Hidenori Yahiro ◽  
Hiroyuki Yamaura ◽  
Makiko Asamoto
Keyword(s):  
Heat Treatment ◽  
Electrical Conductivity ◽  
Treatment Temperature ◽  
Proton Conducting ◽  
Ceramic Film ◽  
Oxide Electrodes ◽  
Perovskite Type Oxide ◽  
Pt Electrodes ◽  
Oxide Cathodes ◽  
Perovskite Type

AbstractThe cathode performances of perovskite-type oxide electrodes were investigated in the H2-O2 fuel cell with proton-conducting electrolyte. Among the perovskite-type oxides tested in the present study, La1-xSrxFeO3(LSFO) showed the best cathode performance. The cathode performances of LSFO depended on the Sr content and the heat-treatment temperature prior to electrochemical measurements. The cathode reactions of both LSFO and Pt electrodes are discussed briefly based on the cathode overpotentials measured as a function of oxygen partial pressure. Finally, the structure and the electrical conductivity of the proton-conducting ceramic film fabricated on LSFO electrode substrate are presented.

Point Defects and Protonic Conduction in A3B'B”2O9 Compounds

1994 ◽  
Vol 369 ◽  
Author(s):  
Yang Du ◽  
A.S. Nowick
Keyword(s):  
Electrical Conductivity ◽  
Ir Spectra ◽  
Point Defects ◽  
Defect Structure ◽  
Complex Perovskite ◽  
Divalent Ions ◽  
Protonic Conduction ◽  
Protonic Conductors ◽  
Lower Activation ◽  
Perovskite Type

AbstractWe have investigated the defect structure and protonic transport properties of nonstoichiometric complex perovskite-type compounds of the type A3B'1+xNb2-xO9-δ. where A and B' are both divalent ions. Protons are incorporated by treatment in H2O vapor and their presence is manifested by the appearance of an OH band in the IR spectra, as well as by the large increase in electrical conductivity to produce excellent protonic conductors, with lower activation energies. A non-classical isotope effect, in which the Arrhenius plots for D+ and H+ cross over, can be explained by a modification of the classical ART hopping theory.

Oxygen nonstoichiometry and defect structure analysis of B-site mixed perovskite-type oxide (La, Sr)(Cr, M)O3−δ (M=Ti, Mn and Fe)

2008 ◽  
Vol 181 (11) ◽  
pp. 3177-3184 ◽  
Author(s):  
Masatsugu Oishi ◽  
Keiji Yashiro ◽  
Kazuhisa Sato ◽  
Junichiro Mizusaki ◽  
Tatsuya Kawada
Keyword(s):  
Structure Analysis ◽  
Defect Structure ◽  
Oxygen Nonstoichiometry ◽  
Perovskite Type Oxide ◽  
Perovskite Type

Defect structure and electrical conductivity of niobates with related perovskite-type structures

1984 ◽  
Vol 12 ◽  
pp. 113-118 ◽  
Author(s):  
J LECOMTE ◽  
J LOUP ◽  
G BOSSER ◽  
M HERVIEU ◽  
B RAVEAU
Keyword(s):  
Electrical Conductivity ◽  
Defect Structure ◽  
Perovskite Type

Electrical conductivity and diffusion coefficient of electrons in a graphene bilayer

2012 ◽  
Vol 57 (7) ◽  
pp. 1025-1029 ◽  
Author(s):  
M. B. Belonenko ◽  
N. G. Lebedev ◽  
S. A. Sudorgin
Keyword(s):  
Electrical Conductivity ◽  
Diffusion Coefficient ◽  
Graphene Bilayer ◽  
And Diffusion

Influence of anisotropy on the electrical conductivity and diffusion coefficient of dry K-feldspar: Implications of the mechanism of conduction

2018 ◽  
Vol 27 (2) ◽  
pp. 028703
Author(s):  
Li-Dong Dai ◽  
Hai-Ying Hu ◽  
He-Ping Li ◽  
Wen-Qing Sun ◽  
Jian-Jun Jiang
Keyword(s):  
Electrical Conductivity ◽  
Diffusion Coefficient ◽  
And Diffusion
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