Dynamic self-assembly and electropolymerization processes of 3, 4-ethylenedioxythiophene on Au(1 0 0) single crystal electrode as probed by in situ scanning tunneling microscopy

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/100277

Title:	Dynamic self-assembly and electropolymerization processes of 3, 4-ethylenedioxythiophene on Au(1 0 0) single crystal electrode as probed by in situ scanning tunneling microscopy
Authors:	姚學麟;Garcia, Jonyl L.;Tongol, Bernard John V.;Yau, Shueh-Lin
Contributors:	理學院化學學系
Keywords:	3,4-Ethylenedioxythiophene;Assembly;Au Single crystal electrode;Chemistry;Dynamics;Electrochemistry;Electrodes;Electrolytes;Electropolymerization;Exact sciences and technology;General and physical chemistry;In situ scanning tunneling microscopy;Molecular self-assembly;Scanning tunneling microscopy;Self assembly;Single crystals;Surface chemistry
Date:	2012-06-01
Issue Date:	2026-04-21 13:56:08 (UTC+8)
Publisher:	Elsevier Ltd.;Kidlington: Elsevier Ltd
Abstract:	摘要： Electrochemical scanning tunneling microscopy (EC-STM) was employed to examine the molecular assembly and electropolymerization processes of 3,4-ethylenedioxythiophene (EDOT) onto reconstructed and unreconstructed Au(100) single crystal electrodes in a 0.1M HClO4 electrolyte solution. The EDOT adsorption onto the Au(100)-hex surface induced lifting of the reconstruction at potentials as low as E=0.150V (vs. reversible hydrogen electrode (RHE)), which is clear evidence of the strong EDOT–Au interaction that was also observed by cyclic voltammetry (CV). EC-STM was also able to reveal, for the first time, the dynamic process of EDOT molecular self-assembly onto the Au(100)-(1×1) surface. The EDOT adlayer was found to fit into a 42×32 unit cell. High-resolution STM imaging revealed a vertically tilted geometry for the EDOT molecules. Electropolymerization was also performed, revealing the solution-process formation of polymer bundles. 出版者： Kidlington: Elsevier Ltd 出版日期： 2012-06-01 出處： Electrochimica acta, 2012-06, Vol.71, p.302-309 版權： 2012 Elsevier Ltd 版權： 2015 INIST-CNRS 識別號： ISSN: 0013-4686 識別號： EISSN: 1873-3859 識別號： DOI: 10.1016/j.electacta.2012.04.010 識別號： CODEN: ELCAAV
Appears in Collections:	[Department of Chemistry] journal & Dissertation

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