A Quantitative Electron Tomography Study of Ruthenium Particles on the Interior and Exterior Surfaces of Carbon Nanotubes

	A Quantitative Electron Tomography Study of Ruthenium Particles on the Interior and Exterior Surfaces of Carbon Nanotubes
	Friedrich, Heiner 1; Guo, Shujing 2; de Jongh, Petra E.1; Pan, Xiulian 2; Bao, Xinhe 2; de Jong, Krijn P.1
刊名	chemsuschem
	2011
卷号	4 期号:7 页码:957-963
关键词	carbon nanotube catalysis electron tomography electronmicroscopy image analysis
ISSN号	待补充
通讯作者	heinerfriedrich
产权排序	2,2
中文摘要	a quantitative electron tomography study of ruthenium particles on the interior and exterior surfaces of carbon nanotubes
英文摘要	the efficiency of filling carbon nanotubes (cnts) by ultrasound-assisted wet impregnation is quantified by electron tomography (et). for image analysis, a method that combines edge detection with single-value thresholding is proposed and validated. a high proportion (80 wt%) of the ruthenium was deposited inside the tube at an average particle size of 24 nm. particles located on the outer surface of the cnt had a size of 1-3 nm. the local ruthenium loading measured by et (3.2 wt%) closely matched the value from elemental analysis (3.5 wt%). in addition, a few 1 nm-sized ruthenium particles were detected inside the carbon wall, which contained pores/cracks. direct imaging and quantification is a powerful tool to understand and possibly model the unique properties of cnt-based catalysts.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	selective hydrogenation ; heterogeneous catalysts ; thresholding techniques ; metal nanoparticles ; mesoporous silica ; supports ; size ; cinnamaldehyde ; confinement ; performance
收录类别	SCI
语种	英语
WOS记录号	WOS:000293594300013
公开日期	2012-07-09
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/115484]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Univ Utrecht, NL-3584 CA Utrecht, Netherlands 2.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Friedrich, Heiner,Guo, Shujing,de Jongh, Petra E.,et al. A Quantitative Electron Tomography Study of Ruthenium Particles on the Interior and Exterior Surfaces of Carbon Nanotubes[J]. chemsuschem,2011,4(7):957-963.
APA	Friedrich, Heiner,Guo, Shujing,de Jongh, Petra E.,Pan, Xiulian,Bao, Xinhe,&de Jong, Krijn P..(2011).A Quantitative Electron Tomography Study of Ruthenium Particles on the Interior and Exterior Surfaces of Carbon Nanotubes.chemsuschem,4(7),957-963.
MLA	Friedrich, Heiner,et al."A Quantitative Electron Tomography Study of Ruthenium Particles on the Interior and Exterior Surfaces of Carbon Nanotubes".chemsuschem 4.7(2011):957-963.