Adsorption of borate ions on passive iron: An in-situ SNIFTIRS-FTIRRAS study

B. R. Scharifker; M. A. Habib; J. L. Carbajal; J. O.M. Bockris

doi:10.1016/0039-6028(86)90109-3

Adsorption of borate ions on passive iron: An in-situ SNIFTIRS-FTIRRAS study

B. R. Scharifker^*, M. A. Habib, J. L. Carbajal, J. O.M. Bockris

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Borate adsorption on passive iron has been investigated with in-situ Fourier transform infrared spectroscopy. It is shown that borate ions adsorb on passive iron in borate buffer solutions, and that their presence at the interface is of fundamental importance in stabilizing the passive film in these solutions. Borate ions are probably strongly bound to the surface, thus impeding the diffusion of Fe²⁺ ions through the film, and reducing the anodic ion dissolution current to a very low value. Co-adsorption of borate and phosphate was observed. Sulphate ions, however, displace borate from the interphase, breaking down the passive film.

Original language	English
Pages (from-to)	97-105
Number of pages	9
Journal	Surface Science
Volume	173
Issue number	1
DOIs	https://doi.org/10.1016/0039-6028(86)90109-3
State	Published - 1 Aug 1986
Externally published	Yes

Bibliographical note

Funding Information:
Financial support from the Robert A. Welch Foundation ton C. Robinson, Jr. is gratefully acknowledged.

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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title = "Adsorption of borate ions on passive iron: An in-situ SNIFTIRS-FTIRRAS study",

abstract = "Borate adsorption on passive iron has been investigated with in-situ Fourier transform infrared spectroscopy. It is shown that borate ions adsorb on passive iron in borate buffer solutions, and that their presence at the interface is of fundamental importance in stabilizing the passive film in these solutions. Borate ions are probably strongly bound to the surface, thus impeding the diffusion of Fe2+ ions through the film, and reducing the anodic ion dissolution current to a very low value. Co-adsorption of borate and phosphate was observed. Sulphate ions, however, displace borate from the interphase, breaking down the passive film.",

author = "Scharifker, \{B. R.\} and Habib, \{M. A.\} and Carbajal, \{J. L.\} and Bockris, \{J. O.M.\}",

note = "Funding Information: Financial support from the Robert A. Welch Foundation ton C. Robinson, Jr. is gratefully acknowledged.",

year = "1986",

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doi = "10.1016/0039-6028(86)90109-3",

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T1 - Adsorption of borate ions on passive iron

T2 - An in-situ SNIFTIRS-FTIRRAS study

AU - Scharifker, B. R.

AU - Habib, M. A.

AU - Carbajal, J. L.

AU - Bockris, J. O.M.

N1 - Funding Information: Financial support from the Robert A. Welch Foundation ton C. Robinson, Jr. is gratefully acknowledged.

PY - 1986/8/1

Y1 - 1986/8/1

N2 - Borate adsorption on passive iron has been investigated with in-situ Fourier transform infrared spectroscopy. It is shown that borate ions adsorb on passive iron in borate buffer solutions, and that their presence at the interface is of fundamental importance in stabilizing the passive film in these solutions. Borate ions are probably strongly bound to the surface, thus impeding the diffusion of Fe2+ ions through the film, and reducing the anodic ion dissolution current to a very low value. Co-adsorption of borate and phosphate was observed. Sulphate ions, however, displace borate from the interphase, breaking down the passive film.

AB - Borate adsorption on passive iron has been investigated with in-situ Fourier transform infrared spectroscopy. It is shown that borate ions adsorb on passive iron in borate buffer solutions, and that their presence at the interface is of fundamental importance in stabilizing the passive film in these solutions. Borate ions are probably strongly bound to the surface, thus impeding the diffusion of Fe2+ ions through the film, and reducing the anodic ion dissolution current to a very low value. Co-adsorption of borate and phosphate was observed. Sulphate ions, however, displace borate from the interphase, breaking down the passive film.

UR - https://www.scopus.com/pages/publications/4243670759

U2 - 10.1016/0039-6028(86)90109-3

DO - 10.1016/0039-6028(86)90109-3

M3 - Article

AN - SCOPUS:4243670759

SN - 0039-6028

VL - 173

SP - 97

EP - 105

JO - Surface Science

JF - Surface Science

IS - 1

ER -

Adsorption of borate ions on passive iron: An in-situ SNIFTIRS-FTIRRAS study

Abstract

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ASJC Scopus subject areas

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