Abstract
The electrochemical behaviors of nonionic fluorosurfactant Zonyl FSN self-assembled monolayers on Au(111) and Au(100) were investigated by electrochemical scanning tunneling microscopy and cyclic voltammetry.In the potential range where the redox reaction of FSN molecules doesn′t occur,the structures of FSN self-assembled monolayers are uniform,which may suppress the adsorption of sulfate and the surface reconstruction of Au single crystal.At the initial stage of the oxidation of Au(111) and Au(100) surfaces covered by FSN self-assembled monolayers,Au(111) surface is characteristic of some protuberance,while Au(100) surface is characteristic of the movement of steps,however the structures of FSN self-assembled monolayers keep unchanged.Compared with Au(100),FSN self-assembled monolayers formed on Au(111) surface can suppress the oxidation of Au surface more efficiently.
Keywords
nonionic fluorosurfactant, FSN, self-assembled monolayers, Au(111), Au(100), ECSTM
Publication Date
2011-02-28
Online Available Date
2011-02-28
Revised Date
2011-02-28
Received Date
2011-02-28
Recommended Citation
Yong-an TANG, Jia-wei YAN, Feng ZHU, Chun-feng SUN, Bing-wei MAO.
Electrochemical Behaviors of Nonionic Fluorosurfactant Zonyl FSN Self-Assembled Monolayers on Au(111) and Au(100)[J]. Journal of Electrochemistry,
2011
,
17(1): Article 10.
DOI: 10.61558/2993-074X.2815
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol17/iss1/10
References
[1]Dubois L H,Nuzzo R G.Synthesis,structure,and prop-erties of model organic surfaces[J].Annual Review ofPhysical Chemistry,1992,43:437-463.
[2]Dong Xian-dui(董献堆),Lu Jun-tao(陆君涛),ChaQuan-xing(查全性).Self-assembled monolayers:Prepa-ration,properties and application[J].Electrochemistry(电化学),1995,1(3):248-258.
[3]Ulman A.Formation and structure of self-assembled m-onolayers[J].Chem Rev,1996,96(4):1533-1554.
[4]Deng Wen-li(邓文礼),Yang Lin-jing(杨林静),WangChen(王琛),et al.Progress of self-assembly of alkane-thiol[J].Chinese Science Bulletin(科学通报),1998,43(5):449-457.
[5]De Feyter S,De Schryver F C.Two-dimensional supra-molecular self-assembly probed by scanning tunnelingmicroscopy[J].Chem Soc Rev,2003,32(3):139-150.
[6]Love J C,Estroff L A,Kriebel J K,et al.Self-assembledmonolayers of thiolates on metals as a form of nanotech-nology[J].Chem Rev,2005,105(4):1103-1170.
[7]Wan L J.Fabricating and controlling molecular self-or-ganization at solid surfaces:Studies by scanning tunne-ling microscopy[J].Accounts of Chemical Research,2006,39(5):334-342.
[8]Tang Y A,Yan J W,Zhou X S,et al.An STM study onnonionic fluorosurfactant zonyl FSN self-assembly on Au(111):Large domains,few defects,and good stability[J].Langmuir,2008,24(23):13245-13249.
[9]Yan J W,Tang Y A,Sun C F,et al.STM study onnonionic fluorosurfactant zonyl FSN self-assembly on Au(100):molecular lattice,corrugations,and adsorbate-enhanced mobility[J].Langmuir,2010,26(6):3829-3834.
[10]Cha C S,Zu Y B.Behavior of perfluorinated surfactantsat the electrode/solution interface[J].Langmuir,1998,14(21):6280-6286.
[11]Chen Z F,Zheng H Z,Lu C,et al.Oxidation of L-cyste-ine at a fluorosurfactant-modified gold electrode:Loweroverpotential and higher selectivity[J].Langmuir,2007,23(21):10816-10822.
[12]Chen Z F,Zu Y B.Simultaneous detection of ascorbicacid and uric acid using a fluorosurfactant-modifiedplatinum electrode[J].J Electroanal Chem,2007,603(2):281-286.
[13]Chen Z F,Zu Y B.Electrochemical recognition of sin-gle-methylene difference between cysteine and homo-cysteine[J].J Electroanal Chem,2008,624(1/2):9-13.
[14]Li F,Zu Y B.Effect of nonionic fluorosurfactant on theelectrogenerated chemiluminescence of the tris(2,2'-bipyridine)ruthenium(II)/tri-n-propylamine system:Lower oxidation potential and higher emission intensity[J].Anal Chem,2004,76(6):1768-1772.
[15]Li M J,Chen Z F,Yam V W W,et al.Multi functionalruthenium(II)polypyridine complex-based core-shellmagnetic silica nanocomposites:Magnetism,lumines-cence,and electrochemiluminescence[J].ACS Nano,2008,2(5):905-912.
[16]Chen Z F,Zu Y B.Electrogenerated chemiluminescenceof the Tris(2,2'-bipyridine)ruthenium(II)/tertiary a-mine systems:Effects of electrode surface hydrophobic-ity on the low-oxidation-potential emission[J].J PhysChem C,2009,113(52):21877-21882.
[17]Clavilier J,Faure R,Guinet G,et al.Preparation ofmonocrystalline Pt microelectrodes and electrochemicalstudy of the plane surfaces cut in the direction of the(111)and(110)planes[J].J Electroanal Chem,1980,107(1):205-209.