MOLECULAR RECOGNITION OF ALKALI-METAL CATIONS BY A NICKEL HEXACYANOFERRATE MONOLAYER ANCHORED TO SELF-ASSEMBLED MONOLAYERS OF 3,3'-THIODIPROPIONIC ACID ON GOLD

被引：58
|
作者：
BHARATHI, S [1 ]
YEGNARAMAN, V [1 ]
RAO, GP [1 ]
机构：
[1] CENT ELECTROCHEM RES INST,KARAIKKUDI 623006,TAMIL NADU,INDIA
来源：
LANGMUIR | 1995年 / 11卷 / 02期
关键词：
D O I：
10.1021/la00002a052
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A gold electrode surface has been modified with a monolayer of 3,3'-thiodipropionic acid (TPA) by self-assembly. The pH-sensitive TPA monolayer is further derivatized to form a monolayer of nickel hexacyanoferrate. This electrode shows molecular discrimination between potassium and sodium ions and exhibits a near-Nernstian response, with a slope of 55 mV/decade to potassium ions in the range from 10(-2) to 1 M.
引用
收藏
页码：666 / 668
页数：3
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