Electrodeposited Silver Nanoparticles on Carbon Ionic Liquid Electrode for Electrocatalytic Sensing of Hydrogen Peroxide

被引：92

作者：

Safavi, Afsaneh ^{[1
,2
]}

Maleki, Norouz ^{[1
,2
]}

Farjami, Elaheh ^{[1
,2
]}

机构：

[1] Shiraz Univ, Coll Sci, Dept Chem, Shiraz 71454, Iran

[2] Shiraz Univ, Nanotechnol Res Inst, Shiraz 71454, Iran

来源：

ELECTROANALYSIS | 2009年 / 21卷 / 13期

关键词：

Silver; Nanoparticles; Electrocatalysis; Carbon ionic liquid electrode; Hydrogen peroxide; SIZE-SELECTIVE ELECTRODEPOSITION; SCREEN-PRINTED ELECTRODES; MESOSCALE METAL PARTICLES; PRUSSIAN-BLUE; SURFACE; DNA; BIOSENSORS; GLUCOSE; ARRAYS; ELECTROCHEMISTRY;

D O I：

10.1002/elan.200804577

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Silver nanoparticles (narrowly dispersed in diameter) were electrodeposited oil carbon ionic liquid electrode (CILE) surface using a two-step potentiostatic method. Potentiostatic double pulse technique was used as a suitable and simple method for controlling the size and morphologies of silver nanoparticles electrodeposited on CILE. The obtained silver nanoparticles deposited on CILE surface showed excellent electrocatalytic activity (low overpotential of -0.35 V vs. Ag/AgCl) towards reduction of hydrogen peroxide. A linear dynamic range of 2-200 mu M with ail experimental detection limit of 0.7 mu M (S/N = 3) and reproducibility of 4.1% (n=5) make the constructed sensor suitable for peroxide determination in aqueous solutions.

引用

页码：1533 / 1538

页数：6

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