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	In-situ high temperature Raman spectroscopic study on the structural evolution of Na2W2O7 from the crystalline to molten states
	Wang, J.1,2,3; You, J. L.1,2,3; Sobol, A. A.4; Lu, L. M.5; Wang, M.1,2,3; Wu, J.1,2,3; Lv, X. M.1,2,3; Wan, S. M.6
	2017-02-01
发表期刊	JOURNAL OF RAMAN SPECTROSCOPY
摘要	In order to optimize the growth conditions for tungstate crystals, the structural evolution of ditungstate Na2W2O7 from the crystalline to molten states during heating has been investigated by in-situ high temperature Raman spectroscopic technique. The experimental temperature-dependent Raman spectra showed that Na2W2O7 crystal has not undergone any solid-state phase transformations during heating process from 298 to 1013K. In contrast to crystalline Na2W2O7, in which [WO4] tetrahedra and [WO6] octahedra coexist, the tungsten-oxygen groups in molten Na2W2O7 have the form of (W2O7)(2-) anion composed of two [WO4] by sharing their corner oxygen atoms. To validate the structural evolution of Na2W2O7 above, Raman activity of vibrations of Na2W2O7 crystal and its melt were calculated using density functional theory (DFT) and compared with the in-situ Raman spectra of Na2W2O7. A non-crystalline phase and an intermediate state of Na2W2O7 were obtained by rapid quenching and relatively slow cooling of the homogeneous melt, respectively. Copyright (c) 2016 John Wiley & Sons, Ltd.
文章类型	Article
关键词	Ditungstate Structural Evolution Molten State Dft
WOS标题词	Science & Technology ; Technology
DOI	10.1002/jrs.5036
关键词[WOS]	PHASE-TRANSFORMATIONS ; TUNGSTATES ; SPECTRA ; NA2WO4 ; DITUNGSTATE ; SILICATES ; NA2MOO4 ; CASTEP ; GROWTH
收录类别	SCI
语种	英语
项目资助者	State Key Program of National Natural Science Foundation of China(50932005) ; State Key Program of National Natural Science Foundation of China(50932005) ; State Key Program of National Natural Science Foundation of China(50932005) ; State Key Program of National Natural Science Foundation of China(50932005) ; State Key Program of National Natural Science Foundation of China(50932005) ; State Key Program of National Natural Science Foundation of China(50932005) ; State Key Program of National Natural Science Foundation of China(50932005) ; State Key Program of National Natural Science Foundation of China(50932005) ; National Natural Science Foundation of China(20973107 ; National Natural Science Foundation of China(20973107 ; National Natural Science Foundation of China(20973107 ; National Natural Science Foundation of China(20973107 ; National Natural Science Foundation of China(20973107 ; National Natural Science Foundation of China(20973107 ; National Natural Science Foundation of China(20973107 ; National Natural Science Foundation of China(20973107 ; Shanghai Committee of Science and Technology Fund, China(12520709200) ; Shanghai Committee of Science and Technology Fund, China(12520709200) ; Shanghai Committee of Science and Technology Fund, China(12520709200) ; Shanghai Committee of Science and Technology Fund, China(12520709200) ; Shanghai Committee of Science and Technology Fund, China(12520709200) ; Shanghai Committee of Science and Technology Fund, China(12520709200) ; Shanghai Committee of Science and Technology Fund, China(12520709200) ; Shanghai Committee of Science and Technology Fund, China(12520709200) ; 40973046) ; 40973046) ; 40973046) ; 40973046) ; 40973046) ; 40973046) ; 40973046) ; 40973046)
WOS研究方向	Spectroscopy
WOS类目	Spectroscopy
WOS记录号	WOS:000394708700021
引用统计	被引频次：28[WOS]   [WOS记录]     [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/31801
专题	中科院安徽光学精密机械研究所
作者单位	1.Shanghai Univ, State Key Lab Adv Special Steel, Shanghai 200072, Peoples R China 2.Shanghai Univ, Shanghai Key Lab Adv Ferromet, Shanghai 200072, Peoples R China 3.Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China 4.Russian Acad Sci, Prokhorov Gen Phys Inst, Ulitsa Vavilova 38, Moscow 119991, Russia 5.CSIRO Mineral Resources, Technol Court, Pullenvale, Qld 4069, Australia 6.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Anhui Key Lab Photon Devices & Mat, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Wang, J.,You, J. L.,Sobol, A. A.,et al. In-situ high temperature Raman spectroscopic study on the structural evolution of Na2W2O7 from the crystalline to molten states[J]. JOURNAL OF RAMAN SPECTROSCOPY,2017,48(2):298-304.
APA	Wang, J..,You, J. L..,Sobol, A. A..,Lu, L. M..,Wang, M..,...&Wan, S. M..(2017).In-situ high temperature Raman spectroscopic study on the structural evolution of Na2W2O7 from the crystalline to molten states.JOURNAL OF RAMAN SPECTROSCOPY,48(2),298-304.
MLA	Wang, J.,et al."In-situ high temperature Raman spectroscopic study on the structural evolution of Na2W2O7 from the crystalline to molten states".JOURNAL OF RAMAN SPECTROSCOPY 48.2(2017):298-304.

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