Electrochemical properties of tadpole-like MgO nanobelts

被引：16

作者：

Li, Mingji ^{[1
]}

Wang, Xiufeng ^{[1
]}

Li, Hongji ^{[2
]}

Wei, Dai ^{[1
]}

Qiu, Guojun ^{[2
]}

Liu, Fude ^{[2
]}

Yang, Baohe ^{[1
]}

机构：

[1] Tianjin Univ Technol, Sch Elect Informat Engn, Tianjin Key Lab Film Elect & Communicate Devices, Tianjin 300384, Peoples R China

[2] Tianjin Univ Technol, Sch Chem & Chem Engn, Tianjin 300384, Peoples R China

来源：

MATERIALS LETTERS | 2013年 / 106卷

基金：

中国国家自然科学基金;

关键词：

MgO nanobelts; Crystal growth; Chemical vapor deposition; Defects; Electrochemical properties; BIOSENSOR; ELECTRODE; FILMS;

D O I：

10.1016/j.matlet.2013.05.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tadpole-like MgO nanobelts have been grown on Mo substrates via DC arc plasma jet chemical vapor deposition. The 10-30 nm wide nanobelts have spherical caps of 30-50 nm diameter. The nanobelts contain numerous contacts and oxide ions in low coordination (with O-5C(2-) and O-4C(2-), for terrace and edge sites, and O-3C(2-) for corner and kink sites). Hydroquinone (HQ) and catechol (CC) can be oxidized on MgO nanobelt-modified electrodes. The electrochemical properties of the modified electrode were investigated using cyclic voltammetry and differential pulse voltammetry techniques. This modified electrode exhibited high sensitivity in the determination of HQ and CC, with the limits of detection for HQ and CC being 1 x 10(-11) M and 1 x 10(-9) M, respectively. The strong electrocatalytic properties were correlated with large surface area and presence of numerous defects. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：45 / 48

页数：4

共 15 条

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