Electroanalytical properties and application of anthraquinone derivative-functionalized multiwalled carbon nanotubes nanowires modified glassy carbon electrode in the determination of dissolved oxygen

被引：13

作者：

Tiwari, Ida ^{[1
]}

Singh, Manorama ^{[1
]}

Gupta, Mandakini ^{[1
]}

Aggarwal, S. K. ^{[2
]}

机构：

[1] Banaras Hindu Univ, Fac Sci, Dept Chem, Varanasi 221005, Uttar Pradesh, India

[2] BARC, Div Fuel Chem, Bombay 400085, Maharashtra, India

来源：

MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 07期

关键词：

Nanostructures; Composites; Sol-gel chemistry; Electrochemical measurements; ELECTROCATALYTIC REDUCTION; ELECTROCHEMICAL REDUCTION; PASTE ELECTRODES; TETRASULFONATED PHTHALOCYANINE; AMPEROMETRIC SENSOR; HYDROGEN-PEROXIDE; O-2; REDUCTION; DIOXYGEN; SURFACE; CATALYSIS;

D O I：

10.1016/j.materresbull.2012.03.031

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We herein report a simple, low cost and green preparation of nanowires of (anthraquinone-2-carboxylic acid/amino functionalized) multiwalled carbon nanotubes (HOOC-2-AQ/AMWCNTs) which has been further employed for the development of highly sensitive oxygen sensor. The prepared composite has been characterized by TEM and electrochemical studies. The glassy carbon electrode modified with composite shows an irreversible and good electrocatalytic activity for the reduction of oxygen. The reduction potential of the oxygen was shifted 460 mV towards the positive potential with this modified electrode as compared to bare glassy carbon electrode. The prepared material was stable with no leaching observed of the mediator. A linear response range of 0.2-6.8 mg L-1, with a sensitivity of 5.0 mu A L mg(-1) and a detection limit of 0.02 mg L-1 were obtained with this sensor. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1697 / 1703

页数：7

共 54 条

[51] A fiber-optic evanescent wave sensor for dissolved oxygen detection based on novel hybrid fluorinated xerogels immobilized with [Ru(bpy)3]2+ [J].