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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 1196 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 1191 | - |
dc.citation.title | ELECTROCHEMISTRY COMMUNICATIONS | - |
dc.citation.volume | 8 | - |
dc.contributor.author | Song, Hyun-Kon | - |
dc.contributor.author | Jang, Jong H. | - |
dc.contributor.author | Kim, Jae Jeong | - |
dc.contributor.author | Oh, Seung M. | - |
dc.date.accessioned | 2023-12-22T09:45:23Z | - |
dc.date.available | 2023-12-22T09:45:23Z | - |
dc.date.created | 2014-09-26 | - |
dc.date.issued | 2006-07 | - |
dc.description.abstract | Discrete Fourier transform (DFT) was used to deconvolute the distribution of penetrability coefficient (alpha(0)-distribution, equivalent to pore size distribution) from electrochemical impedance data of porous electrodes. The working equation is the Fredholm. integral equation of the first kind to correlate macroscopic impedance data to a theoretical model describing microscopic signal with the alpha(0)-distribution. Simulated and experimental impedance data were tested. Noise observed at high frequencies in Fourier space was removed before inversely Fourier-transforming the alpha(0)-distribution from Fourier space to real space. The accuracy of alpha(0)-distributions deconvoluted by DFT depended on the number, frequency range and quality of impedance data. The examples in this work showed that fairly accurate alpha(0)-distributions could be obtained by DFT deconvolution. Most promising method was to use the alpha(0)-distribution obtained from DFT deconvolution as the first guess to shape the true alpha(0)-distribution. Then, accurate alpha(0)-distributions could be obtained by estimating parameters of the pre-assumed distributions by using complex nonlinear least square fitting. | - |
dc.identifier.bibliographicCitation | ELECTROCHEMISTRY COMMUNICATIONS, v.8, no.7, pp.1191 - 1196 | - |
dc.identifier.doi | 10.1016/j.elecom.2006.05.012 | - |
dc.identifier.issn | 1388-2481 | - |
dc.identifier.scopusid | 2-s2.0-33745645667 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/6515 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33745645667 | - |
dc.identifier.wosid | 000239125100023 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.title | Electrochemical porosimetry: Deconvolution of distribution functions | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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