In-situ heating study on the structural change of surfactant-templated germanium oxide mesostructure

	In-situ heating study on the structural change of surfactant-templated germanium oxide mesostructure
	Chen X(陈兴); Cai Q(蔡泉); Wang W(王维); Mo G(默广); Jiang LS(江隆盛); Zhang KH(张坤浩); Chen ZJ(陈中军); Wu ZY(吴自玉); Wu ZH(吴忠华); Chen, X
刊名	JOURNAL OF PHYSICAL CHEMISTRY B
	2008
卷号	112 期号:39 页码:12297-12303
通讯作者	[Chen, Xing ; Cai, Quan ; Wang, Wei ; Mo, Guang ; Jiang, Longsheng ; Zhang, Kunhao ; Chen, Zhongjun ; Wu, Ziyu ; Wu, Zhonghua] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China ; [Chen, Xing] Gen Res Inst Nonforrous Met, Beijing 100088, Peoples R China ; [Cai, Quan ; Wang, Wei ; Mo, Guang ; Jiang, Longsheng ; Zhang, Kunhao] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
英文摘要	Mesostructured germanium oxide has been well-synthesized by using a surfactant-templated approach under basic hydrothermal conditions. The cationic surfactant cetyltrimethylammonium bromide (CTAB) has formed nanotubes with uniform diameter of about 3.2 nm. Blanket-like morphology of the as-prepared sample has been observed with transmission electron microscopy (TEM). High-resolution TEM image reveals that the nanotubes are connected with inorganic germanium oxide and have self-assembled into periodic mesostructure. In-situ heating X-ray diffraction (XRD) patterns confirm that the germanium oxide is in amorphous phase in the temperature range from room temperature (RT) to 700 degrees C. In-situ heating small-angle X-ray scattering (SAXS) presents the mesostructural change with temperature. The local atomic structures around germanium atom have been obtained with in-situ heating X-ray adsorption fine structure (XAFS) techniques. The stability of this mesostructure has been determined to be correlated with the cationic surfactant CTAB. The structural evolution from the GeO2/NaOH aqueous solution, the as-prepared sample to the sample heated at 700 degrees C, has been described, and the formation mechanism of mesostructured germanium oxide has been discussed.
学科主题	Chemistry
类目[WOS]	Chemistry, Physical
研究领域[WOS]	Chemistry
原文出处	SCI
语种	英语
WOS记录号	WOS:000259552000018
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240187]
专题	高能物理研究所_多学科研究中心高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Chen X,Cai Q,Wang W,et al. In-situ heating study on the structural change of surfactant-templated germanium oxide mesostructure[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2008,112(39):12297-12303.
APA	陈兴.,蔡泉.,王维.,默广.,江隆盛.,...&Wu, ZH.(2008).In-situ heating study on the structural change of surfactant-templated germanium oxide mesostructure.JOURNAL OF PHYSICAL CHEMISTRY B,112(39),12297-12303.
MLA	陈兴,et al."In-situ heating study on the structural change of surfactant-templated germanium oxide mesostructure".JOURNAL OF PHYSICAL CHEMISTRY B 112.39(2008):12297-12303.