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X-ray photoelectron study of oxygen bonding in crystalline C–S–H phases

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Abstract

We recorded the photoelectron spectra of various crystalline calcium silicate hydrates (C–S–Hs) and have examined their O 1 s photoelectron spectra. The spectra are asymmetric, with contributions assigned primarily to bridging and non-bridging oxygen species. There is an increased contribution due to the presence of non-bonding oxygen atoms with increasing calcium:silicon ratio. Additionally, there are slight changes in theO 1s-binding energies with changes in calcium:silicon ratio. These changes are explained in terms of bonding and silicate structure.

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Acknowledgments

We acknowledge the support of the European Community Access to Research Infrastructure action of the Improving Human Potential Programme, contract HPRI-CT-1999–00008 awarded to Prof. B. J. Wood (EU Geochemical Facility, University of Bristol). We also thank the valuable comments of two anonymous referees, whose recommendations greatly improved this paper.

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  1. L. Black

    Present address: Materials Research Institute, Sheffield Hallam University, Howard Street, S1 1WB, Sheffield, UK

Authors and Affiliations

  1. Forschungszentrum Karlsruhe GmbH (ITC-WGT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany

    L. Black, K. Garbev & P. Stemmermann

  2. University of Bristol, Interface Analysis Centre, 121 St. Michael’s Hill, Bristol, BS2 8BS, UK

    K. R. Hallam & G. C. Allen

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  1. L. Black
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  2. K. Garbev
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  3. P. Stemmermann
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  4. K. R. Hallam
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  5. G. C. Allen
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Correspondence to L. Black.

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Black, L., Garbev, K., Stemmermann, P. et al. X-ray photoelectron study of oxygen bonding in crystalline C–S–H phases. Phys Chem Minerals 31, 337–346 (2004). https://doi.org/10.1007/s00269-004-0401-3

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  • DOI: https://doi.org/10.1007/s00269-004-0401-3

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