Impedance spectroscopy of cell with Pt electrodes on oxygen-conducting material with mayenite-related structure

Шкерин, С. Н.; Tolkacheva, A. S.; Никонов, А. В.; Павздерин, Н. Б.

doi:10.1007/s11581-017-2043-8

Cited by 7 publications

(2 citation statements)

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“…In other words, it's time to start using Oxidic Metalic Composites and the work of is perovskitas and Mn that is currently underway. 15,51 Figure 9 describes the log RT versus 1/T Arrhenius plot, which is almost a straight line and follows Equation (3). Since the resistance is determined by Equations (2) and 3, Equation (3) encompassing and being the same Equations.…”

Section: Eis Spectra Of Smcm Biphasic Composition In An Oxidizing Atmmentioning

confidence: 80%

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Mixed Electrical Conduction of Calcium Aluminates Synthesized by Polymeric Precursors

et al. 2018

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A study of the electrical transport properties of calcium aluminate (CA) with coexisting C3A and C12A7 phases was carried out. In this work, powders resulting from synthesis based on the polymer precursor method. The resulting product was characterized by means of XRD, Raman, and UV-visible analysis to obtain the optical BG and by EIS. From the XRD and Raman analyses, the presence and coexistence of the two self-modified phases were confirmed. In this biphasic composition, celite phase was estimated to be the major phase. An optical BG of 5.69 eV at room temperature was calculated, and under the condition of a reducing atmosphere in the temperature range of 750-950 ºC, an activation energy for conduction of 2.98 eV was determined by EIS measurements. Further, in this biphasic sample, the electronic conduction transport might be governed by the mayenite minor phase due to its large defect nature and concentration compared to celite. In oxidizing conditions, the activation energy for electrical conduction was 1.42 eV, which is somewhat higher than that observed by other authors in mayenite single phase; this result was explained by taking into account the coexistence of biphasic material and an actual chemical defect scenario in SMCM is discussed.

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Section: Eis Spectra Of Smcm Biphasic Composition In An Oxidizing Atmmentioning

confidence: 80%

“…This second semicircle is a (RQ), that is, in the "small extended phase semicircle". This second semicircle is not exactly a semicircle, but a network of subcircuits that is associated with a classic example correspond to a physical transmission line behaviour 51 .…”

Section: Eis Spectra Of Smcm Biphasic Composition In An Oxidizing Atmmentioning

confidence: 99%