SURFACE-CONFINED MONOMERS ON ELECTRODE SURFACES - ELECTROCHEMICAL AND MICROSCOPIC CHARACTERIZATION OF OMEGA-(N-PYRROLYL)ALKANETHIOL SELF-ASSEMBLED MONOLAYERS ON AU

被引：103

作者：

WILLICUT, RJ ^{[1
]}

MCCARLEY, RL ^{[1
]}

机构：

[1] LOUISIANA STATE UNIV,DEPT CHEM,BATON ROUGE,LA 70803

来源：

LANGMUIR | 1995年 / 11卷 / 01期

关键词：

D O I：

10.1021/la00001a050

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The synthesis of various omega-(N-pyrrolyl)alkanethiols and electrochemical characterization of the resulting monolayers on Au is described. Cyclic voltammograms of the monolayers on Au in Bu(4)NClO(4)/CH3CN display an irreversible wave at +1.00 V vs SSCE due to oxidation of pyrrole sites in the monolayer. There is no voltammetric evidence for polymerization of the surface-confined pyrrole units when the potential is scanned between 0 and +1.3 V in Bu(4)NClO(4)/CH3CN. Poly(pyrrole) films deposited on omega-(N-pyrrolyl)alkanethiol/Au surfaces are extremely adherent and smooth. Scanning electron micrographs of the polymers show that the films are composed of nuclei 80-100 nm in diameter. The differences between poly(pyrrole) formed on modified and unmodified Au are discussed.

引用

页码：296 / 301

页数：6

共 28 条

[1] CHEMICALLY-INDUCED ENHANCEMENT OF NUCLEATION IN NOBLE-METAL DEPOSITION [J].