Selective penetration of liquid-phase organic probe molecules into SAM of 2-mercapto-3-n-octylthiophene

	Selective penetration of liquid-phase organic probe molecules into SAM of 2-mercapto-3-n-octylthiophene
	Peng ZQ ; Wang JG ; Wang EK ; Dong SJ
刊名	journal of the electrochemical society
	2003
卷号	150 期号:4 页码:e197-e201
关键词	SELF-ASSEMBLED MONOLAYERS TETRADENTATE LIGAND MONOLAYERS INTERFACIAL BINDING-PROPERTIES LANGMUIR-BLODGETT-FILMS GOLD ELECTRODES ELECTROANALYTICAL CHEMISTRY IMPEDANCE SPECTROSCOPY PHOTOCHEMICAL IMPRINT RECOGNITION SITES ACID MONOLAYERS
ISSN号	0013-4651
通讯作者	peng zq
中文摘要	an inherently disorganized self-assembled monolayer (sam) of 2-mercapto-3-n-octylthiophene (mot) has been formed on a gold bead electrode from its dilute ethanolic solution. the disorganization of the monolayer is attributed to the loose packing of the aliphatic chains of the mot adsorbates, which results from a large difference in dimension/or cross-sectional area between the head (thiophene thiolate) and the tail (alkane chain) groups. electrochemical measurements including ac impedance spectroscopy and metal underpotential deposition have shown that the monolayer is almost pinhole free. however, the mot sam can be penetrated by an organic probe molecule with affinity for the alkane chain part of the monolayer. some typical probe molecules with different size and hydrophilicity have been employed to assess the permselectivity of the monolayer. measurement results demonstrate that the ability of the employed probe molecules to penetrate into the monoalyer is mainly dominated by their hydrophilicity/or hydrophobicity. the results presented here suggest the potential application of mot monoalyer to effectively modify the electrode surface for several research areas such as electrochemical sensors, electrocatalysis, electroanalysis, and supported hybrid bilayer membranes.
收录类别	SCI
语种	英语
WOS记录号	WOS:000181515100044
公开日期	2010-09-13
内容类型	期刊论文
源URL	[http://202.98.16.49/handle/322003/17381]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Peng ZQ,Wang JG,Wang EK,et al. Selective penetration of liquid-phase organic probe molecules into SAM of 2-mercapto-3-n-octylthiophene[J]. journal of the electrochemical society,2003,150(4):e197-e201.
APA	Peng ZQ,Wang JG,Wang EK,&Dong SJ.(2003).Selective penetration of liquid-phase organic probe molecules into SAM of 2-mercapto-3-n-octylthiophene.journal of the electrochemical society,150(4),e197-e201.
MLA	Peng ZQ,et al."Selective penetration of liquid-phase organic probe molecules into SAM of 2-mercapto-3-n-octylthiophene".journal of the electrochemical society 150.4(2003):e197-e201.