全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
电化学  2006 

基底电位对硫醇自组装膜形成的影响

, PP. 69-73

Keywords: 电化学,自组装膜,电位控制组装,硫醇

Full-Text   Cite this paper   Add to My Lib

Abstract:

应用电位阶跃法,在不同组装电位下制备金/正十二硫醇自组装单分子膜.交流阻抗谱表征该硫醇膜的电化学性质,发现金基底的电位对硫醇自组装膜的形成有重要影响.在-0.8~-0.4V的电位区间内,随着组装电位的增加,该自组装膜的致密性、有序性增加,缺陷减少,并于0.4V时达到最佳.组装电位高于0.4V,膜的致密性、有序性降低,缺陷增多.本文为硫醇及其衍生物的电位调控组装提供了重要依据.

References

[1]  U lm an A,Form ation and structure of self-assemb ledmonolayers[J].Chem.Rev.,1996,96:1533.
[2]  Love J C,Estroff L A,Kriebel J K,et al.Self-assem-b led monolayers of th iolates on m etals as a form of nano-technology[J],Chem.Rev.,2005,105,1103.
[3]  PorterM D,B rightT B,A llara D L,et al.Spontaneouslyorgan ized molecu lar assemb lies.4.Structural character-ization of n-alkyl th iolmonolayers on gold by optical el-lipsom etry,infrared spectroscopy,and electrochem istry[J].J.Am.Chem.Soc.,1987,109:3559.
[4]  Bain C D,Troughton E B,Tao Y T,et al.Form ation ofmonolayer film s by the spontaneous assemb ly of organ icth iols from solution onto gold[J].J.Am.Chem.Soc.,1989,111:321.
[5]  F link S,Boukamp B A,Berg A,et al.E lectrochem icaldetection of electrochem ically inactive cations by self-as-semb led monolayers of crown ethers[J].J.Am.Chem.Soc.,1998,120:4652.
[6]  Noh J,Hara M.F inal phase of alkaneth iol self-assem-b led monolayers on Au(111)[J].Langmu ie,2002,18:1954.
[7]  K im K,Jeon W S,Kang J K,et al.A pseudorotaxane ongold:form ation of self-assemb led monolayers,reversib ledethread ing and rethriead iung of the ring,and ion-gatingbehavior[J].Angew.Chem.Int.Ed.,2003,42:2293.
[8]  Sortino S,Petralia S,Conoc i S,et al.Novel self-assem-b led monolayers of d ipolar ruthen ium(Ⅲ/Ⅱ)pentaam-m ine(4,4-b ipyrid in ium)comp lexes on u ltrath in p lati-num film s as redox molecu lar sw itches[J].J.Am.Chem.Soc.,2003,125:1122.
[9]  L i H Y(李海英),Zhang H L(张浩力),Zhang J(张锦),et a1.Preparation and structural charneterizationof self assemb led monolayers from a new series of m er-capto contained azobenzene derivatives[J].ActaPhys.-Ch im.S in.(in Ch inese),1999,15:198.
[10]  D iao P,Jiang D L,Cu i X L,et al.Stud ies of structurald isorder of self-assemb led th iol monolayers on gold bycyc lic voltamm etry and ac impedance[J].J.E lectro-anal.Chem.,1999,464:61.
[11]  D iao P,Guo M,Jiang D L,et al.Fractional coverage ofdefects in self-assemb led th iol monolayers on gold[J].J.E lectroanal.Chem.,2000,480:59.
[12]  D iao P,GuoM,Tong R T.Characterization of defects inthe form ation process of self-assemb led th iolmono-layersby electrochem ical impedance spectroscopy[J].J.E lec-troanal.Chem.,2001,495:98.
[13]  Colvin V L,Goldste in A N,A livisatos A P.Sem iconduc-tor nanocrystals covalently bound to m etal surfaces w ithself-assemb led monolayers[J].J.Am.Chem.Soc.1992,114:5221,
[14]  UU Z F,Shen Z Y,Zhu T,et al.O rgan izing singlewalledcarbon nanotubes on gold using a wet chem ical self-as-semb ling techn ique[J].Langmu ir,2000,16:3569.
[15]  D iao P,L iu Z F,W u B,et al.Chem ically assemb led sin-gle-wall carbon nanotubes and the ir electrochem istry[J].Chem.Phys.Chem.2002,3;898.
[16]  W idrig C A,Chung C,PorterM D.The electrochem icaldesorption of n-alkaneth iolmonolayers from polycrystal-line Au and Ag electrodes[J].J.E lectroanal.Chem.,1991,310:335.
[17]  W e isshaar D E,Lamp B D,PorterM D.Thermody-nam-ically controlled electrochem ical form ation of th iolatemonolayers at gold:characterization and comparison toself-assemb led analogs[J].J.Am.Chem.Soc.,1992,114:5860.
[18]  Ron H,Rub inate in I.Self-assemb led monolayers on oxi-d ized m etals.3.alkylth iol and d ialkyl d isu lfide assemb lyon gold under electrochem ical cond itions[J].J.Am.Chem.Soc.,1998,120:13444.
[19]  Hsueh C C,Lee M T,Freund M S,et al.E lectrochem i-cally d irected self-assemb ly on gold[J].Angew.Chem.Int.Ed.,2000,39:1227.
[20]  D iao P(刁鹏),M e i G(梅岗),Hou Q C(侯群超),etal.E lectrochem ical properties of th iol monolayers pre-pared by constant-potential assemb ly[J].Acta.Phys.Ch im.S in.,2005,21:291(in Ch inese).
[21]  CaoCN(曹楚南),Zhang J Q(张鉴清).An Introductionto E lectrochem ical Impedance Spectroscopy(电化学阻抗谱导论)[M].Be ijing:Sc ience Press,2002:1~19.
[22]  M iller C,Cuendet P,G r tzelM.Adsorbed hydroxy th iolmonolayers on goid electrodes:evidence for electron tun-neling to redox spec ies in solution[J].J.Phys.Chem.,1991,95:877.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133