Dehydroxylation and transformations of the 2 : 1 phyllosilicate pyrophyllite at elevated temperatures: An infrared spectroscopic study
文献类型：期刊论文
| 作者 | Wang, L; Zhang, M; Redfern, SAT; Zhang, ZY |
| 刊名 | CLAYS AND CLAY MINERALS
 |
| 出版日期 | 2002-04-01 |
| 卷号 | 50期号:2页码:272-283 |
| 关键词 | cristobalite dehydroxylation IR spectroscopy intermediate phase mullite pyrophyllite dehydroxylate transformation |
| ISSN号 | 0009-8604 |
| 文献子类 | Article |
| 英文摘要 | The thermally-induced dehydroxylation and transformations of the 2:1 phyllositicate pyrophyllite have been studied using infrared spectroscopy in the frequency range 350 11000 cm(-1) and the temperature range 200-1500degreesC. The dehydroxylation of pyrophyllite to pyrophyllite dehydroxylate occurs between 500 and 900degreesC. It is characterized by a decrease in the intensity of the OH signals and phonon bands of pyrophyllite and the eventual disappearance of these features as well as the appearance of extra signals related to pyrophyllite dehydroxylate and an intermediate phase. Our results are consistent with previous observations that the SiO4 tetrahedral sheet structure still exists in pyrophyllite dehydroxylate, that the Si-O-Al linkages and 2:1 structure remain in the pyrophyllite dehydroxylate, and that AlO5 trigonal bipyramids form. |
| WOS关键词 | SOLID-STATE AL-27 ; LAYER SILICATES ; SI-29 ; MONTMORILLONITE ; NMR |
| WOS研究方向 | Chemistry ; Geology ; Mineralogy ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000175320200013 |
| 出版者 | CLAY MINERALS SOCIETY |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/77730]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wang, L |
| 作者单位 | 1.Chinese Acad Sci, Changsha Inst Geotecton, Changsha 410013, Peoples R China 2.Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 1000029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, L,Zhang, M,Redfern, SAT,et al. Dehydroxylation and transformations of the 2 : 1 phyllosilicate pyrophyllite at elevated temperatures: An infrared spectroscopic study[J]. CLAYS AND CLAY MINERALS,2002,50(2):272-283. |
| APA | Wang, L,Zhang, M,Redfern, SAT,&Zhang, ZY.(2002).Dehydroxylation and transformations of the 2 : 1 phyllosilicate pyrophyllite at elevated temperatures: An infrared spectroscopic study.CLAYS AND CLAY MINERALS,50(2),272-283. |
| MLA | Wang, L,et al."Dehydroxylation and transformations of the 2 : 1 phyllosilicate pyrophyllite at elevated temperatures: An infrared spectroscopic study".CLAYS AND CLAY MINERALS 50.2(2002):272-283. |
入库方式： OAI收割
来源：地质与地球物理研究所
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