Interface and bulk relaxation in solid ionic conductors

Autor:	J.C. Wang, John B. Bates, Y.T. Chu
Rok vydání:	1991
Předmět:	Permittivity Condensed matter physics Chemistry Analytical chemistry Ionic bonding Electrolyte Condensed Matter Physics Electronic Optical and Magnetic Materials Ion Electrode Materials Chemistry Ceramics and Composites Fast ion conductor Polarization (electrochemistry) Electrical conductor
Zdroj:	Journal of Non-Crystalline Solids. :1046-1052
ISSN:	0022-3093
DOI:	10.1016/0022-3093(91)90722-i
Popis:	The frequency dependent response of solid ionic conductors (solid electrolytes) to a small amplitude ac voltage applied through dc blocking metal contacts is due to polarization from two sources: (i) charge accumulation at the metal-electrolyte interfaces and (ii) displacement of bound charges and defects within the electrolyte. These give rise to a characteristic constant phase angle behavior of the interface impedance and bulk permitivity above the loss peak. The interface impedance is attributed to ion diffusion in screened regions near the electrode surface while the permitivity of the electrolyte is modeled using a temperature dependent distribution of activation energies for ion hopping in double potential wells.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6e6db12f3ea89b59b37f89c9d464d3bd https://doi.org/10.1016/0022-3093(91)90722-i Zobrazit plný text záznamu