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

被引:42
作者
Black, L
Garbev, K
Stemmermann, P
Hallam, KR
Allen, GC
机构
[1] Forschungszentrum Karlsruhe GmbH ITC WGT, D-76344 Eggenstein Leopoldshafen, Germany
[2] Univ Bristol, Interface Anal Ctr, Bristol BS2 8BS, Avon, England
关键词
X-ray photoelectron spectroscopy; calcium silicate hydrates; structure; bridging oxygen; non-bridging oxygen;
D O I
10.1007/s00269-004-0401-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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.
引用
收藏
页码:337 / 346
页数:10
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