Preparation of Nitrogen and FeP Doped Carbon Nanotubes for Selective and Simultaneous Electrochemical Detection of Dihydroxybenzoic Acid Isomers

被引：12

作者：

Zhou, Haifeng ^{[1
]}

Cui, Malin ^{[1
]}

Zhao, Yuan ^{[1
]}

Wang, Chan ^{[1
]}

Song, Qijun ^{[1
]}

机构：

[1] Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Synthet & Biol Colloids, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2017年 / 242卷

基金：

中国国家自然科学基金;

关键词：

Transition-metal phosphides; Electrochemical sensor; Dihydroxybenzoic acid isomers; PHENOLIC-COMPOUNDS; HIGH-PERFORMANCE; FUNCTIONALIZED GRAPHENE; GENERATING HYDROGEN; NANOWIRE ARRAYS; NANOPARTICLES; PHOSPHIDE; OXIDATION; ELECTRODE; CATALYSTS;

D O I：

10.1016/j.electacta.2017.05.045

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nitrogen and iron phosphides (i.e., FeP) doped carbon nanotubes (N/FeP-CNT), featured with multi-element co-doping, multi-active sites, and uniform distribution were prepared and characterized. The synergistic effect of nitrogen doped carbon nanotubes (N-CNT) and FeP improved the electrical conductivity and electrocatalytic properties of the modified electrode, which provided a new analysis platform for simultaneous detection of dihydroxybenzoic acid isomers (DHBA isomers). Low detection limits (i.e., 124, 65, and 221 nmol L-1 for 2,4-DHBA, 3,4-DHBA, and 2,5-DHBA, respectively) and wide detection range (i.e., 0.5-600, 0.5-560, and 0.5-820 mmol L-1 for 2,4-DHBA, 3,4-DHBA, and 2,5-DHBA, respectively) were obtained for DHBA isomers. In addition, the electrode exhibited good anti-interference ability and long-term stability for the determination of DHBA isomers. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：107 / 116

页数：10

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