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Laser Raman Spectroscopy and Its Application in Gas Hydrate Studies
Fu Juan1,2,5; Wu Neng-you2,4; Lu Hai-long3; Wu Dai-dai2; Su Qiu-cheng2
2015-11-01
发表期刊SPECTROSCOPY AND SPECTRAL ANALYSIS
卷号35期号:11
摘要Gas hydrates are important potential energy resources. Microstructural characterization of gas hydrate can provide information to study the mechanism of gas hydrate formation and to support the exploitation and application of gas hydrate technology. This article systemly introduces the basic principle of laser Raman spectroscopy and summarizes its application in gas hydrate studies. Based on Raman results, not only can the information about gas composition and structural type be deduced, but also the occupancies of large and small cages and even hydration number can be calculated from the relative intensities of Raman peaks. By using the in-situ analytical technology, laser Raman specstropy can be applied to characterize the formation and decomposition processes of gas hydrate at microscale, for example the enclathration and leaving of gas molecules into/from its cages, to monitor the changes in gas concentration and gas solubility during hydrate formation and decomposition, and to identify phase changes in the study system. Laser Raman in-situ analytical technology has also been used in determination of hydrate structure and understanding its changing process under the conditions of ultra high pressure. Deep-sea in-situ Raman spectrometer can be employed for the in-situ analysis of the structures of natural gas hydrate and their formation environment. Raman imaging technology can be applied to specify the characteristics of crystallization and gas distribution over hydrate surface. With the development of laser Raman technology and its combination with other instruments, it will become more powerful and play a more significant role in the microscopic study of gas hydrate.
文章类型Article
关键词Laser Raman Gas Hydrate In-situ Analysis Raman Imaging
WOS标题词Science & Technology ; Technology
DOI10.3964/j.issn.1000-0593(2015)11-2996-07
研究领域[WOS]Spectroscopy
关键词[WOS]METHANE HYDRATE ; OCEAN ; DISSOCIATION ; NUMBER ; WATER
收录类别SCI
语种英语
WOS类目Spectroscopy
WOS记录号WOS:000364503600004
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10898
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
3.Peking Univ, Coll Engn, Beijing 100871, Peoples R China
4.Qingdao Inst Marine Geol, Qingdao 266071, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Fu Juan,Wu Neng-you,Lu Hai-long,et al. Laser Raman Spectroscopy and Its Application in Gas Hydrate Studies[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2015,35(11).
APA Fu Juan,Wu Neng-you,Lu Hai-long,Wu Dai-dai,&Su Qiu-cheng.(2015).Laser Raman Spectroscopy and Its Application in Gas Hydrate Studies.SPECTROSCOPY AND SPECTRAL ANALYSIS,35(11).
MLA Fu Juan,et al."Laser Raman Spectroscopy and Its Application in Gas Hydrate Studies".SPECTROSCOPY AND SPECTRAL ANALYSIS 35.11(2015).
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