A novel enzyme-free hydrogen peroxide sensor based on polyethylenimine-grafted graphene oxide-Pd particles modified electrode

被引：23
|
作者：
Xu, Chunying [1 ]
Zhang, Liping [1 ]
Liu, Lin [1 ]
Shi, Yunfeng [1 ]
Wang, Huajie [1 ]
Wang, Xiangbei [1 ]
Wang, Fangfang [1 ]
Yuan, Baiqing [1 ]
Zhang, Daojun [1 ]
机构：
[1] Anyang Normal Univ, Coll Chem & Chem Engn, Anyang 455000, Henan, Peoples R China
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2014年 / 731卷
基金：
美国国家科学基金会;
关键词：
Graphene oxide; Polyethyleneimine Pd particles; 1-Ethyl-3-[3-dimethylaminopropyl]carbodiimide; Hydrogen peroxide; GLASSY-CARBON ELECTRODE; FUNCTIONALIZED GRAPHENE; DECORATED GRAPHENE; DIRECT ELECTROCHEMISTRY; SENSING PLATFORM; NANOPARTICLES; GLUCOSE; BIOSENSOR; NANOCOMPOSITE; SHEETS;
D O I：
10.1016/j.jelechem.2014.08.003
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A novel enzyme-free hydrogen peroxide (H2O2) sensor was fabricated by coating graphene oxide (GO), branched polyethylenimine (PEI) and Pd particles in sequence on the surface of glassy carbon (GC) electrode (Pd-PEI/GO/GC). A layer-by-layer method was used, which involved pi-pi interactions, covalent bonding through 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide/N-hydroxysulfosuccinimide (EDC/NHSS) chemistry, electrostatic adsorption and electroreduction. The Pd-PEI/GO/GC electrode exhibited high electrocatalytic activity, a low detection limit, and good stability for the detection of H2O2. The sensor's practical application was tested via determination of H2O2 in real water samples. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：67 / 71
页数：5
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