Raman Scattering Modification Induced by Structural Change in Alumina Polymorphs

The calculated Raman spectra disclose that alumina polymorphs of nordstrandite, gibbsite, diaspore, boehmite, bayerite and α-Al2O3 display different phonon behaviors, which can be attributed to their internal crystal structure changes. The strongest Raman peaks of nordstrandite, gibbsite, diaspore,...

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Bibliographic Details
Published in:Chinese physics letters 2015-12, Vol.32 (12), p.105-108
Main Author: 张建 李海涛 郭俊宏 胡芳仁
Format: Article
Language:English
Subjects:
Al2O3
一水硬铝石
三水氧化铝
三水铝石
拉曼光谱
改性氧化铝
散射
晶型结构
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Summary:The calculated Raman spectra disclose that alumina polymorphs of nordstrandite, gibbsite, diaspore, boehmite, bayerite and α-Al2O3 display different phonon behaviors, which can be attributed to their internal crystal structure changes. The strongest Raman peaks of nordstrandite, gibbsite, diaspore, boehmite, bayerite and α-Al2O3 are located at 214.2cm-1, 3314.4cm-1, 2298.6cm-1, 747.7cm-1, 3484.6cm-1 and 529.2cm-1, respectively. The characterizations in Raman spectra of those polymorphs are obviously different, which can be used in fingerprints to identify the alumina polymorphs structure.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/12/126801