CHARACTERIZATION OF SUBMICRON-SIZED CARBON ELECTRODES INSULATED WITH A PHENOL ALLYLPHENOL COPOLYMER

被引：151

作者：

STREIN, TG ^{[1
]}

EWING, AG ^{[1
]}

机构：

[1] PENN STATE UNIV,DAVEY LAB 152,UNIV PK,PA 16802

来源：

ANALYTICAL CHEMISTRY | 1992年 / 64卷 / 13期

关键词：

D O I：

10.1021/ac00037a012

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

By careful control of the copolymerization of phenol and 2-allylphenol onto the outsides of flame-etched carbon fibers, a method to construct vottammetric probes with overall physical dimensions as small as 400 nm has been developed. The primary f actors controlling the formation of a thin, yet insulating, film are relative monomer concentration, polymer electrodeposition tlme, and electrodeposition solution pH. Optimal conditions f or this procedure involve electrodeposition for 12-14 min in 60 mM phenol and 90 mM 2-allylphenol (pH = 9.0). Success rates for construction of electrodes with total structural tip diameters below 1.5-mu-m is approximately 70% and for construction of electrodes with approximately 400-nm tip diameters it is about 10%.

引用

页码：1368 / 1373

页数：6

共 28 条

[1]

ADAMS RN, 1976, ANAL CHEM, V48, P1126, DOI 10.1021/ac50007a045

[2] SCANNING ELECTROCHEMICAL MICROSCOPY - INTRODUCTION AND PRINCIPLES [J].