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An in-situ XANES investigation of the interactions between iron, manganese and antimony in silicate melts

Bidegaray, Anne Isabelle ; Ceglia, Andrea ; Cicconi, Maria Rita ; Pham, Van Thai LU ; Crabbé, Amandine ; Mernissi Cherigui, El Amine ; Nys, Karin ; Terryn, Herman ; Neuville, Daniel R. and Godet, Stéphane (2018) In Journal of Non-Crystalline Solids 502. p.227-235
Abstract

The analysis of iron, manganese and antimony in silicate glass is of great interest in chemistry, materials science, earth sciences and archaeological sciences. Yet, conclusions from different fields appear to be contradictory and many questions about redox reactions in glass remain. The purpose of this study is thus to discuss whether and how these multivalent elements interact in glass. Soda-lime silicate melts containing iron along with manganese and/or antimony have been analysed at different high temperatures under argon atmosphere. Using in-situ XANES at the Fe K-edge, redox thermodynamics, kinetics and diffusivities have been assessed for the different compositions. The data obtained show that antimony is more efficient at... (More)

The analysis of iron, manganese and antimony in silicate glass is of great interest in chemistry, materials science, earth sciences and archaeological sciences. Yet, conclusions from different fields appear to be contradictory and many questions about redox reactions in glass remain. The purpose of this study is thus to discuss whether and how these multivalent elements interact in glass. Soda-lime silicate melts containing iron along with manganese and/or antimony have been analysed at different high temperatures under argon atmosphere. Using in-situ XANES at the Fe K-edge, redox thermodynamics, kinetics and diffusivities have been assessed for the different compositions. The data obtained show that antimony is more efficient at oxidising iron compared to manganese at all temperatures. The oxidising power trend would thus be Sb > Sb + Mn > Mn. Furthermore, hypotheses on the formation of Fe-Mn complexes are also reported in glasses with stoichiometric proportions of iron and manganese. Based on the determination of redox diffusivities, it appears that presence of other multivalent elements does not significantly affect the iron redox mechanisms and that diffusivity is essentially controlled by the mobility of calcium.

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author
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publishing date
type
Contribution to journal
publication status
published
keywords
in-situ XANES, Redox reactions, Soda-lime silicate melts, Transition elements
in
Journal of Non-Crystalline Solids
volume
502
pages
9 pages
publisher
Elsevier
external identifiers
  • scopus:85053840351
ISSN
0022-3093
DOI
10.1016/j.jnoncrysol.2018.09.015
language
English
LU publication?
no
id
4ffc94b3-db1f-4721-b38f-d657265887a9
date added to LUP
2019-06-23 15:48:30
date last changed
2022-04-02 19:22:55
@article{4ffc94b3-db1f-4721-b38f-d657265887a9,
  abstract     = {{<p>The analysis of iron, manganese and antimony in silicate glass is of great interest in chemistry, materials science, earth sciences and archaeological sciences. Yet, conclusions from different fields appear to be contradictory and many questions about redox reactions in glass remain. The purpose of this study is thus to discuss whether and how these multivalent elements interact in glass. Soda-lime silicate melts containing iron along with manganese and/or antimony have been analysed at different high temperatures under argon atmosphere. Using in-situ XANES at the Fe K-edge, redox thermodynamics, kinetics and diffusivities have been assessed for the different compositions. The data obtained show that antimony is more efficient at oxidising iron compared to manganese at all temperatures. The oxidising power trend would thus be Sb &gt; Sb + Mn &gt; Mn. Furthermore, hypotheses on the formation of Fe-Mn complexes are also reported in glasses with stoichiometric proportions of iron and manganese. Based on the determination of redox diffusivities, it appears that presence of other multivalent elements does not significantly affect the iron redox mechanisms and that diffusivity is essentially controlled by the mobility of calcium.</p>}},
  author       = {{Bidegaray, Anne Isabelle and Ceglia, Andrea and Cicconi, Maria Rita and Pham, Van Thai and Crabbé, Amandine and Mernissi Cherigui, El Amine and Nys, Karin and Terryn, Herman and Neuville, Daniel R. and Godet, Stéphane}},
  issn         = {{0022-3093}},
  keywords     = {{in-situ XANES; Redox reactions; Soda-lime silicate melts; Transition elements}},
  language     = {{eng}},
  month        = {{12}},
  pages        = {{227--235}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Non-Crystalline Solids}},
  title        = {{An in-situ XANES investigation of the interactions between iron, manganese and antimony in silicate melts}},
  url          = {{http://dx.doi.org/10.1016/j.jnoncrysol.2018.09.015}},
  doi          = {{10.1016/j.jnoncrysol.2018.09.015}},
  volume       = {{502}},
  year         = {{2018}},
}