Ionic transport in super ionic conductors: a theoretical model

Rice, Michael J.; Roth, W. L.

doi:10.1016/0022-4596(72)90121-1

Cited by 369 publications

(158 citation statements)

References 27 publications

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“…In the "free ion model" described by Rice and Roth [34] the existence of an energy gap, eg(T) is postulated in the ion density of states. Conduction occurs via the excitation of ions from localized states at zero energy into a "continuum" state above the gap.…”

Section: Models Concerning Heat Of Transportmentioning

confidence: 99%

“…The activation energy for conduction of (Zr02)0,88(Ca0)0.12 and (ZrO&g, (Y,O,)u ug (which are also 02-conducting materials with (defect) fluorite structure) is of the order of 1.5 and 1 .O eV, respectively [34]. Fischer [27] found Q* (1073 K) values of 0.0 1 and 0.06 eV, respectively, which means here also is a misfit between observed value and theory.…”

Section: Models Concerning Heat Of Transportmentioning

confidence: 99%

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Thermogalvanic power and fast ion conduction in δ-Bi2O3 and δ-(Bi2O3)1−x(R2O3)x with R = Y, TbLu

et al. 1980

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The thermogalvanic power E (Seebeck coefficient) of 02-conducting s-Biz03 and 6-(Bi203)1_x(Y203)x has been measured directly as a function of temperature and partial oxygen pressure in N2 -02 mixtures. The E of 6-(Bi 2 3 0 ) ,,.75&03h,.25 with R = Tb-Lu was indirectly determined using an isothermal concentration cell technique. Except for pure 6-Bi20,, the heat of transport is much smaller than the activation energy for 02-conduction for all materials. The vibrational freedom of 02-ions in all L-stabilized materials is reflected in their IR spectra at room temperature. Two prototypes of a thermogalvanic POZ meter were tested.

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Section: Models Concerning Heat Of Transportmentioning

confidence: 99%

Section: Models Concerning Heat Of Transportmentioning

confidence: 99%

Thermogalvanic power and fast ion conduction in δ-Bi2O3 and δ-(Bi2O3)1−x(R2O3)x with R = Y, TbLu

et al. 1980

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“…Their conductivity, which is exceptional (Rice & Roth, 1972;Whittingham & Huggins, 1971) for a solid, is due to the two-dimensional diffusion of cations in the low-density layers between the successive spinel blocks which form the construction elements of the bulk crystal structure (Bragg, Gottfried & West, 1931 ;Roth, 1972;Beevers & Roos, 1937;Peters, Bettman, Moore & Glick, 1971;Reidinger, 1974).…”

Section: Introductionmentioning

confidence: 99%

X-ray diffuse scattering study of the low-temperature microdomains in silver β-alumina

Boilot¹,

Théry²,

Collongues³

et al. 1976

Acta Cryst Sect A

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A semiquantitative analysis of the X-ray diffuse scattering from fl-alumina between 20 K and room temperature shows the change with temperature of the organization of the conducting ions. The earlierreported low-temperature superstructure never achieves long-range order. Both the size of the 2D domains and the order within the domains, as reflected by the occupation factors, saturate around 77 K. Above this temperature, the size decreases from its saturation value of 45/~, to about 10 ~ at 400 K, with a parallel decrease of the order inside the domains. The occupation factors could be determined up to 220 K, and they extrapolate at room temperature to values close to the average occupation determined by conventional structure analysis.

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“…The increase in conductivity depends on mobility of mobile ion, free volume of the polymer and rate of dissociation of salt/filler. The mobility of the mobile charge carriers are calculated by the Rice and Roth model [43] as given below.…”

Section: Fig7 Correation Between Temperature Dependence Of Conductivmentioning

confidence: 99%

Development of PVB-Nano Cellulose based Polymer Electrolyte and Correlation of Optical Behavior with Ionic Conductivity

Asthana¹,

Dwivedi²,

Pandey³

2017

Advances in Chemical Science

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Present work deals with findings on AC conduction and their correlation with FTIR transmittance intensity in a CNF doped polymer nanocomposite electrolyte system, namely [PVB(1-x) + LiSCNx](1-y): CNFy. The structural behavior of electrolytes studied by XRD, SEM and IR spectroscopy and Raman spectroscopy shows improvement in amorphous behavior on dispersal of CNF nanofillers. The effect of CNF on electrical behavior under isothermal conditions, in nanocomposite polymer electrolyte has been investigated by the impedance spectroscopy. The variation of conductivity with temperature and their correlation with FTIR transmittance peak has been investigated. The role of mobility and number of charge carriers in conductivity is also studied.

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Ionic transport in super ionic conductors: a theoretical model

Cited by 369 publications

References 27 publications

Thermogalvanic power and fast ion conduction in δ-Bi2O3 and δ-(Bi2O3)1−x(R2O3)x with R = Y, TbLu

Thermogalvanic power and fast ion conduction in δ-Bi2O3 and δ-(Bi2O3)1−x(R2O3)x with R = Y, TbLu

X-ray diffuse scattering study of the low-temperature microdomains in silver β-alumina

Development of PVB-Nano Cellulose based Polymer Electrolyte and Correlation of Optical Behavior with Ionic Conductivity

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