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	Functionalized multiwall carbon nanotubes combined with bis(2,2 '-bipyridine)-5-amino-1,10-phenanthroline ruthenium(II) as an electrochemiluminescence sensor
	Tao, Ying ; Lin, Zhi-Jie ; Chen, Xiao-Mei ; Huang, Xiao-Li ; Oyama, Munetaka ; Chen, Xi ; Chen X(陈曦) ; Wang, Xiao-Ru ; Wang XR(王小如)
	2007-11
关键词	electrochemilummescence modified electrode functionalized carbon nanotubes bis(2,2'-bipyridine)-5-amino-1,10-phenanthroline ruthenium(II)
英文摘要	An effective electrochemiluminescence (ECL) sensor was developed by combining bis(2,2'-bipyridine)-5-amino-1,10-phenanthroline ruthenium(H) [Ru(bpy)(2)(5-NH2-1,10-phen)(2+)] with functionalized carbon nanotubes (FCNTs) coated on a glassy carbon electrode. Treatment with a nitric acid and sulfuric acid mixture (1:3, v/v) led to multiwall carbon nanotubes terminated with carboxylic acid groups. These were characterized using Fourier transform infrared absorption spectroscopy (FTIR) measurement and a transmission electron microscope (TEM). N-hydroxy-succinimide and 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride were applied to activate the carboxyl groups and, according to the observation from FTIR and energy-dispersed spectroscopy (EDS) measurements, they catalyzed the formation of an amide bond between the FCNTs and Ru(bpy)(2)(5-NH2-1,10-phen)(2+), resulting in a covalent bond. The FCNTs could provide a good immobilization matrix on the electrode by means of a hydrophobic interaction. In addition, because the FCNTs on the electrode surface were open structures with a large surface area and excellent conductivity, the modified electrode exhibited good electrochemical activity and ECL response. The ECL detection limit (S/N) for tripropylamine using this modified electrode was 8.8 x 10(-7) mol L-1 with a linear range from 1.0 x 10(-6) to 2.0 x 10(-3) mol L-1 (R-2 = 0.9969). The ECL sensor presented good characteristics in terms of stability and reproducibility. (C) 2007 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE SA
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1016/j.cattod.2007.10.022]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Tao, Ying,Lin, Zhi-Jie,Chen, Xiao-Mei,et al. Functionalized multiwall carbon nanotubes combined with bis(2,2 '-bipyridine)-5-amino-1,10-phenanthroline ruthenium(II) as an electrochemiluminescence sensor[J],2007.
APA	Tao, Ying.,Lin, Zhi-Jie.,Chen, Xiao-Mei.,Huang, Xiao-Li.,Oyama, Munetaka.,...&王小如.(2007).Functionalized multiwall carbon nanotubes combined with bis(2,2 '-bipyridine)-5-amino-1,10-phenanthroline ruthenium(II) as an electrochemiluminescence sensor..
MLA	Tao, Ying,et al."Functionalized multiwall carbon nanotubes combined with bis(2,2 '-bipyridine)-5-amino-1,10-phenanthroline ruthenium(II) as an electrochemiluminescence sensor".(2007).

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