Electrocatalytic reactions of hydrogen peroxide at carbon paste electrodes modified by some metal hexacyanoferrates

被引：111
|
作者：
Garjonyte, R [1 ]
Malinauskas, A [1 ]
机构：
[1] Inst Chem, LT-2600 Vilnius, Lithuania
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 1998年 / 46卷 / 03期
关键词：
carbon paste electrodes; sensors; hydrogen peroxide;
D O I：
10.1016/S0925-4005(98)00123-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Carbon paste electrodes (CPE's), modified by ferrous, cupric, cuprous, cobalt and nickel hexacyanoferrates, were shown to electrocatalyse the cathodic reduction of hydrogen peroxide. At pH 3.05 ferrous hexacyanoferrate (FHC) modified CPE shows a cathodic response of 0.2 mA/cm(2) to 1 mM of peroxide added. By increasing the solution pH the response of this CPE diminishes drastically (by two orders of magnitude at pH 7.3). In contrast, the cupric hexacyanoferrate (CHC) modified CPE shows a high cathodic response in the whole pH range investigated, 3.05-7.3. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：236 / 241
页数：6
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