Role of Halides on the Passivation of Iron in Alkaline Buffer Solutions
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Role of Halides on the Passivation of Iron in
Alkaline Buffer Solutions
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| Creator |
Nathirabegum, S.
Basha, C.A. Muralidharan, V.S. |
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| Subject |
Corrosion Science and Engineering
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| Description |
Cyclic voltammetric studies were carried out on pure iron in alkaline borate and
phosphate buffer solutions at pH 10.8. At higher potentials, on anodic polarization, iron
forms FeB4O7 and FeOOH in borate buffer, and FeHPO4 in phosphate buffer which got
converted to higher valency phosphates.
In phosphate solutions, in presence of halides, the interfacial diffusion layer turned to be
cation selective outer sublayer and an anion selective inner sublayer, and in borate
solutions a precipitate layer of metal oxyhydroxide was formed, which was anion
selective, and anions adsorb on this.
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| Publisher |
Sociedade Portuguesa de Electroqumica
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| Date |
2010
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/538/1/2010-125.pdf
Nathirabegum, S. and Basha, C.A. and Muralidharan, V.S. (2010) Role of Halides on the Passivation of Iron in Alkaline Buffer Solutions. Portugaliae Electrochimica Acta, 28 (3). pp. 143-151. ISSN 0872-1904 |
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| Relation |
http://cecri.csircentral.net/538/
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