Research on automobile exhaust particles by STXM and NEXAFS

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2004-2010年

	Research on automobile exhaust particles by STXM and NEXAFS
	Yang, CJ ; Guo, Z ; Zhang, XZ ; Tai, RZ ; Bao, LM ; Li, XL ; Zhang, GL ; Li, Y
刊名	ACTA PHYSICA SINICA
	2010
卷号	59 期号:8 页码:6
关键词	scanning transmission X-ray microscopy near edge X-ray absorption fine structure automobile exhaust particle
ISSN号	1000-3290
通讯作者	Tai, RZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
英文摘要	In order to understand the structures of automobile exhaust particles and the components of nitrogen inside them, automobile exhaust particles from Santana 3000 and Golcars are investigated with scanning transmission X-ray microscopy (STXM) and the near edge X-ray absorption fine structure (NEXAFS) spectra. The results of STXM show that single particulate has a size of 500 nm and a nonuniform mass distribution with an empty hole inside it. Compared with the NEXAFS spectra, (NH(4))(2)SO(4) and NaNO(3) spectra show many different sigma* resonances at 406 eV, the spectrum of ammonium has a shoulder structure. NaNO(3) and automobile exhaust particles show significant sigma resonances at 412 eV and 418. 5 eV. However, (NH(4))(2)SO(4) shows wider sigma resonances 413. 5 eV and 421. 8 eV. Nitrates are main chemical species of nitrogen in automobile exhaust particles. In an energy range from 395 eV to 418 eV,Santana 3000 automobile exhaust particles are stack scanned. The principal component analysis and cluster analysis indicate that there exist nitrates in surface layer and minor ammonium inside it.
学科主题	Physics
收录类别	SCI
语种	英语
WOS记录号	WOS:000281024100030
公开日期	2012-04-11
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/7036]
专题	上海应用物理研究所_中科院上海应用物理研究所2004-2010年
推荐引用方式 GB/T 7714	Yang, CJ,Guo, Z,Zhang, XZ,et al. Research on automobile exhaust particles by STXM and NEXAFS[J]. ACTA PHYSICA SINICA,2010,59(8):6.
APA	Yang, CJ.,Guo, Z.,Zhang, XZ.,Tai, RZ.,Bao, LM.,...&Li, Y.(2010).Research on automobile exhaust particles by STXM and NEXAFS.ACTA PHYSICA SINICA,59(8),6.
MLA	Yang, CJ,et al."Research on automobile exhaust particles by STXM and NEXAFS".ACTA PHYSICA SINICA 59.8(2010):6.