Conductivity of Bi2O3-based oxide ion conductors with double stabilizers

Investigation of transport numbers in yttrium doped bismuth niobates

“…4). This conclusion was also reached by Meng et al [11] using the classical EMF method. They reported the (Bi 2 O 3 ) 0.75 (Y 2 O 3 ) x (Nb 2 O 5 ) 0.25−x system to exhibit pure ionic conduction.…”

“…The ionic transference number (t 0 ) of Bi 3 NbO 7 was determined using the traditional electromotive force (EMF) method [11] and the reported t 0 values were surprisingly low (t 0 < 0.2) at temperatures below 500 • C. However, the accuracy of the EMF method depends strongly on the electrode polarisation resistance of the concentration cell used, especially at lower temperatures. Indeed, Kharton and Marques [12] recently discussed the problems associated with electrode polarisation resistance and its influence on t 0 .…”

Crystal structures and conductivity properties of MBi6V2O15 family type compounds (M=Pb, Sr, Ca, Cd, Na0.5Bi0.5)

“…With the aim of obtaining structurally related phases, keeping the interestingly high conducting properties, or reaching even better ones at temperatures as low as possible, numerous investigations of bismuth rich domains in binary systems [4][5][6][7][8][9][10][11][12][13][14], ternary systems [15] or quaternary ones [16] were carried out. Many δ-related phases could be stabilized at room temperature.…”

(MBi)46V8Oy-family type (M=Pb, Sr, Ca, Cd, Na0.5Bi0.5): Syntheses, crystal structures and conductivity properties

“…Many bismuth containing mixed oxides adopt structure types closely connected to this variety [2][3][4][5][6][7][8][9][10][11][12][13][14].…”