Identifying Characteristic Frequencies in the Electrochemical Impedance of Ion-Exchange Membrane Systems

Autor:	Antonio Angel Moya
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	electrochemical impedance Warburg diffusion impedance ion-exchange membranes electric double-layer capacitance energy storage devices Chemical technology TP1-1185 Chemical engineering TP155-156
Zdroj:	Membranes, Vol 12, Iss 10, p 1003 (2022)
Druh dokumentu:	article
ISSN:	2077-0375
DOI:	10.3390/membranes12101003
Popis:	In this study, the characteristic frequencies of the electrochemical impedance of ion-exchange membrane systems constituted by the membrane and two diffusion boundary layers adjacent to the membrane were investigated. Approximations of the impedance of the Randles equivalent electric circuit in multiple frequency ranges were considered, and the characteristic frequencies of the zeros and poles of orders ½ and 1 were derived. The characteristic geometric frequencies, those associated with the interfacial charge transfer and the diffusive transport processes, as well as those associated with the transitions between processes, were identified by means of analytical expressions.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a9bf8f785c6a4d578e51fbc8f5aafb3e Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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