Facile synthesis of NiO nanoflowers and their electrocatalytic performance

被引：49

作者：

Cao Xia ^{[1
,2
]}

Xu Yanjun ^{[2
]}

Wang Ning ^{[1
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Sch Chem & Environm, Beijing 100083, Peoples R China

[2] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Chengdu 212003, Jiangsu, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2011年 / 153卷 / 02期

基金：

中国国家自然科学基金;

关键词：

NiO; Hierarchical nanostructure; Electrocatalysis; Ascorbic acid; ASCORBIC-ACID; CARBON NANOTUBES; URIC-ACID; DOPAMINE;

D O I：

10.1016/j.snb.2010.11.011

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学];

摘要：

In this paper, hierarchically structured NiO nanoflowers were facile synthesized by incorporating a convenient solution process with a subsequent thermal treating process. Their catalytic activity was then electrochemically investigated in detail. The NiO nanoflower modified biosensor exhibits excellent sensing performance for the determination of L-ascorbic acid with a response time less than 8 s, linear range between 0.005 and 3.5 mM, and sensitivity as 220.4 mu A mM(-1) cm(-2). Besides, a high selectivity towards the oxidation of AA in the presence of dopamine (DA) and nitrite was also observed at their maximum physiological concentrations. The good analytical performance, long-term stability, low cost and straightforward fabrication process made the NiO nanomaterials promising for the development of effective electrochemical sensors for a wide range of potential applications in medicine, biotechnology and environmental chemistry. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：434 / 438

页数：5

共 26 条

[1]

Alvarez EC, 2009, CHIM OGGI, V27, P61

[2]

A highly selective and sensitive dopamine and uric acid biosensor fabricated with functionalized ordered mesoporous carbon and hydrophobic ionic liquid [J].