Passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution studied by Mott–Schottky analysis in conjunction with the point defect model

Passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution studied by Mott–Schottky analysis in conjunction with the point defect model

The passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution, in the steady-state condition, has been explored using electrochemical impedance spectroscopy (EIS) and Mott–Schottky analysis. Based on the Mott–Schottky analysis in conjunction with the point defect model (PDM), it was shown that t...

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Main Author: A. Fattah-alhosseini
Format: Article
Language:English
Published: Elsevier 2016-11-01
Series:Arabian Journal of Chemistry
Subjects:
Mott–Schottky plot
Stainless steel
Electrochemical impedance spectroscopy
Online Access:http://www.sciencedirect.com/science/article/pii/S1878535212000433
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spelling doaj-07eb1e8974064ac1847eb9559ce655b12020-11-24T23:47:49ZengElsevierArabian Journal of Chemistry1878-53522016-11-019S2S1342S134810.1016/j.arabjc.2012.02.015Passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution studied by Mott–Schottky analysis in conjunction with the point defect modelA. Fattah-alhosseiniThe passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution, in the steady-state condition, has been explored using electrochemical impedance spectroscopy (EIS) and Mott–Schottky analysis. Based on the Mott–Schottky analysis in conjunction with the point defect model (PDM), it was shown that the calculated donor density decreases exponentially with increasing passive film formation potential. The thickness of the passive film was increased linearly with the formation potential. These observations were consistent with the predictions of the PDM, noting that the point defects within the passive film are metal interstitials, oxygen vacancies, or both.http://www.sciencedirect.com/science/article/pii/S1878535212000433Mott–Schottky plotStainless steelElectrochemical impedance spectroscopy
collection DOAJ
language English
format Article
sources DOAJ
author A. Fattah-alhosseini
spellingShingle A. Fattah-alhosseini
Passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution studied by Mott–Schottky analysis in conjunction with the point defect model
Arabian Journal of Chemistry
Mott–Schottky plot
Stainless steel
Electrochemical impedance spectroscopy
author_facet A. Fattah-alhosseini
author_sort A. Fattah-alhosseini
title Passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution studied by Mott–Schottky analysis in conjunction with the point defect model
title_short Passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution studied by Mott–Schottky analysis in conjunction with the point defect model
title_full Passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution studied by Mott–Schottky analysis in conjunction with the point defect model
title_fullStr Passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution studied by Mott–Schottky analysis in conjunction with the point defect model
title_full_unstemmed Passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution studied by Mott–Schottky analysis in conjunction with the point defect model
title_sort passivity of aisi 321 stainless steel in 0.5 m h2so4 solution studied by mott–schottky analysis in conjunction with the point defect model
publisher Elsevier
series Arabian Journal of Chemistry
issn 1878-5352
publishDate 2016-11-01
description The passivity of AISI 321 stainless steel in 0.5 M H2SO4 solution, in the steady-state condition, has been explored using electrochemical impedance spectroscopy (EIS) and Mott–Schottky analysis. Based on the Mott–Schottky analysis in conjunction with the point defect model (PDM), it was shown that the calculated donor density decreases exponentially with increasing passive film formation potential. The thickness of the passive film was increased linearly with the formation potential. These observations were consistent with the predictions of the PDM, noting that the point defects within the passive film are metal interstitials, oxygen vacancies, or both.
topic Mott–Schottky plot
Stainless steel
Electrochemical impedance spectroscopy
url http://www.sciencedirect.com/science/article/pii/S1878535212000433
work_keys_str_mv AT afattahalhosseini passivityofaisi321stainlesssteelin05mh2so4solutionstudiedbymottschottkyanalysisinconjunctionwiththepointdefectmodel
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