A method for structure analysis of nanomaterials by electron diffraction: Phase identification and unit cell determination

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	A method for structure analysis of nanomaterials by electron diffraction: Phase identification and unit cell determination
	Shi Honglong 1; Zhang Guling 1; Zou Bin 1; Luo Minting 2; Wang Wenzhong 1
刊名	MICROSCOPY RESEARCH AND TECHNIQUE
	2013-06-01
卷号	76 期号:6 页码:641-647
关键词	SAED phase identification unit cell determination structure analysis nanomaterials
英文摘要	We report a quick and easy method for a random selected area electron diffraction (SAED) pattern without rotating and tilting the specimen to perform phase identification and unit cell determination by combined with the XRD softwares. If your TEM is well aligned and camera length is carefully corrected, two-dimensional (2D)-SAED pattern can be directly transformed to 1D-profile after the center determination of pattern, this profile is then imported to XRD analysis packages. Finally, phase identification and unit cell determination can be performed after peak search or precise peak position determined by profile fitting. Two examples, flaky-like TiO2 nanomaterial and TiO2 nanotubes precipitated by the silver nanoparticles, were tested and verified for the validation of phase identification and unit cell determination using this method; the successful crystallographic analysis of one single gold nanocrystal indicates it is still validate for the nanocrystals with the smaller diffraction volume, but need two or more random tilt SAED patterns. This method could be further used in the quantitative phase analysis, structure determination and Rietveld refinement for the nanomaterials if the reliable integrated intensity can be extracted. Microsc. Res. Tech. 76:641647, 2013. (c) 2013 Wiley Periodicals, Inc.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Technology
类目[WOS]	Anatomy & Morphology ; Biology ; Microscopy
研究领域[WOS]	Anatomy & Morphology ; Life Sciences & Biomedicine - Other Topics ; Microscopy
关键词[WOS]	METAL NANOPARTICLES ; TIO2 NANOPARTICLES ; NANOCRYSTALS ; BIOSENSORS ; NANORODS ; PROGRAM
收录类别	SCI
语种	英语
WOS记录号	WOS:000319298200011
公开日期	2015-05-27
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/13481]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Minzu Univ China, Sch Sci, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Shi Honglong,Zhang Guling,Zou Bin,et al. A method for structure analysis of nanomaterials by electron diffraction: Phase identification and unit cell determination[J]. MICROSCOPY RESEARCH AND TECHNIQUE,2013,76(6):641-647.
APA	Shi Honglong,Zhang Guling,Zou Bin,Luo Minting,&Wang Wenzhong.(2013).A method for structure analysis of nanomaterials by electron diffraction: Phase identification and unit cell determination.MICROSCOPY RESEARCH AND TECHNIQUE,76(6),641-647.
MLA	Shi Honglong,et al."A method for structure analysis of nanomaterials by electron diffraction: Phase identification and unit cell determination".MICROSCOPY RESEARCH AND TECHNIQUE 76.6(2013):641-647.