Spectroscopic Properties of Co-Fe Hydrotalcites
作者:
M. del Arco,
R. Trujillano,
St. Kassabov,
V. Rives,
期刊:
Spectroscopy Letters
(Taylor Available online 1998)
卷期:
Volume 31,
issue 4
页码: 859-869
ISSN:0038-7010
年代: 1998
DOI:10.1080/00387019808007404
出版商: Taylor & Francis Group
关键词: hydrotalcite;hydroxycarbonate;Co-Fe hydrotalcite;anionic clays;Mössbauer;FT-IR
数据来源: Taylor
摘要:
The spectroscopic properties of hydrotalcite-like compounds, containing Co(II) and Fe(III) in the layers, have been studied. In these materials, depending on the experimental conditions during synthesis, Co(II) becomes partially oxidized to Co(III). Although the environment of the cations is close to octahedral in all cases, Mossbauer data indicate a more symmetric environment for Fe(III) ions in samples not submitted to hydrothermal treatment. The FT-IR spectra show some distortion of the carbonate anions in the interlayer space.
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