Raman spectroscopy as a tool to characterize heterogenite (CoO•OH) (Katanga Province, Democratic Republic of Congo)

被引:19
作者
Burlet, C. [1 ]
Vanbrabant, Y. [1 ]
Goethals, H. [1 ]
Thys, T. [1 ]
Dupin, L. [1 ]
机构
[1] Geol Survey Belgium, Royal Belgian Inst Nat Sci, BE-1000 Brussels, Belgium
关键词
EBSD; Heterogenite; Laser-induced transformation; Lufilian fold-and-thrust belt; Raman microspectroscopy; LITHIUM-ION BATTERIES; CO3O4; SPECTRA; COBALT; SPINELS; FILMS;
D O I
10.1016/j.saa.2011.03.007
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Natural heterogenite (CoO center dot OH) samples were studied by Raman microspectroscopy, electronic microprobe and Electronic BackScattered Diffraction (EBSD). Raw samples and polished sections were made from 10 mines covering the Katanga copperbelt (Katanga Province, Democratic Republic of Congo). Four typical Raman responses have been obtained leading to investigate the laser-induced dehydroxylation of heterogenite into a Co-spinel structure. The results are also compared with EBSD patterns from oven heated heterogenite samples. A close relationship was established between the chemical substitutions of Co by mainly Cu, Ni, Mn and Al and their impact on the mineral Raman response. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:138 / 147
页数:10
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