Silver microspheres for application as hydrogen peroxide sensor

被引：164
|
作者：
Zhao, Bo [1 ]
Liu, Zongrui [3 ]
Liu, Zhelin [2 ]
Liu, Guixia [1 ]
Li, Zhuang [2 ]
Wang, Jinxian [1 ]
Dong, Xiangting [1 ]
机构：
[1] Changchun Univ Sci & Technol, Sch Chem & Environm Engn, Changchun 130022, Jilin, Peoples R China
[2] Chinese Acad Sci, State Key Lab Electroanalyt Chem, Changchun Inst Appl Chem, Changchun 130022, Jilin, Peoples R China
[3] Inner Mongolia Univ Nationalities, Coll Chem, Tongliao 028043, Inner Mongolia, Peoples R China
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 08期
关键词：
Electrochemical sensor; Nanomaterial; Silver microspheres; Hydrogen peroxide; ENHANCED RAMAN-SCATTERING; NANOPARTICLES; ELECTRODE;
D O I：
10.1016/j.elecom.2009.06.035
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this paper, we synthesized flowerlike silver microspheres with nanostructures by simply reducing silver nitrate by ascorbic acid in the presence of PVP. The structure was investigated by SEM. The chemical composition was determined by EDX, XRD and XPS. Recent studies on hydrogen peroxide sensor based on silver nanoparticles inspired us to examine the electrocatalytic activity of prepared microspheres. This electrochemical sensor exhibited good electrocatalytic activity towards the reduction of H2O2 in 0.2 M phosphate buffer Solution (pH 7.0), and the detection limit of H2O2 was found to be 1.2 mu M, which was lower than certain enzyme-based biosensors. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1707 / 1710
页数：4
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