Electrospun RuO2-Co3O4 hybrid nanotubes for enhanced electrocatalytic activity

被引：15

作者：

Jang, Hye Su ^{[1
]}

Yang, Yejin ^{[1
]}

Lee, Nam-Suk ^{[2
]}

Son, Byungrak ^{[3
]}

Lee, Youngmi ^{[1
]}

Lee, Chongmok ^{[1
]}

Kim, Myung Hwa ^{[1
]}

机构：

[1] Ewha Womans Univ, Dept Chem & Nano Sci, Global Top Res Program 5, Seoul 120750, South Korea

[2] Pohang Univ Sci & Technol POSTECH, Natl Inst Nanomat Technol, Pohang 790784, South Korea

[3] Daegu Gyeongbuk Inst Sci & Technol, Wellness Convergence Res Ctr, Taegu 711873, South Korea

来源：

MATERIALS LETTERS | 2015年 / 139卷

基金：

新加坡国家研究基金会;

关键词：

Ruthenium dioxide; Cobalt oxide; Electrospinning; Oxygen reduction reaction; Electrochemical sensor for ascorbic acid; COMPOSITE NANOFIBERS; ASCORBIC-ACID; NANOPARTICLES;

D O I：

10.1016/j.matlet.2014.10.123

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a facile synthesis of electrospun RuO2-Co3O4 hybrid nanotubes as well as their enhanced electrochemical responses. Among all RuO2-Co3O4 hybrid nanotubes, the polycrystalline RuO2-Co3O4 hybrid nanotubes with optimum relative atomic ratios of Ru/Co=2.3:1.0 show the highly efficient catalytic activity for oxygen reduction reaction (ORR). Additionally, the nanotubes represent the favorable electrochemical sensing behavior for ascorbic acid, resulting in the high sensitivity of 204 mu AmM(-1)cm(-2), the low detection limit of 6.6 mu M, and the broad dynamic range without the interference from other biological relevant species. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：405 / 408

页数：4

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