Electrospun RuO2-Co3O4hybrid nanotubes for enhanced electrocatalytic activity

Hye Su Jang; Yejin Yang; Nam Suk Lee; Byungrak Son; Youngmi Lee; Chongmok Lee; Myung Hwa Kim

doi:10.1016/j.matlet.2014.10.123

Electrospun RuO₂-Co₃O₄hybrid nanotubes for enhanced electrocatalytic activity

Hye Su Jang, Yejin Yang, Nam Suk Lee, Byungrak Son, Youngmi Lee, Chongmok Lee, Myung Hwa Kim

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

We report a facile synthesis of electrospun RuO₂-Co₃O₄hybrid nanotubes as well as their enhanced electrochemical responses. Among all RuO₂-Co₃O₄hybrid nanotubes, the polycrystalline RuO₂-Co₃O₄hybrid 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 μAmM^-1cm^-2, the low detection limit of 6.6 μM, and the broad dynamic range without the interference from other biological relevant species.

Original language	English
Pages (from-to)	405-408
Number of pages	4
Journal	Materials Letters
Volume	139
DOIs	https://doi.org/10.1016/j.matlet.2014.10.123
State	Published - 15 Feb 2015

Bibliographical note

Publisher Copyright:
© 2014 Published by Elsevier B.V.

Keywords

Cobalt oxide
Electrochemical sensor for ascorbic acid
Electrospinning
Oxygen reduction reaction
Ruthenium dioxide

Access to Document

10.1016/j.matlet.2014.10.123

Cite this

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title = "Electrospun RuO2-Co3O4hybrid nanotubes for enhanced electrocatalytic activity",

abstract = "We report a facile synthesis of electrospun RuO2-Co3O4hybrid nanotubes as well as their enhanced electrochemical responses. Among all RuO2-Co3O4hybrid nanotubes, the polycrystalline RuO2-Co3O4hybrid 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 μAmM-1cm-2, the low detection limit of 6.6 μM, and the broad dynamic range without the interference from other biological relevant species.",

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AU - Su Jang, Hye

AU - Yang, Yejin

AU - Lee, Nam Suk

AU - Son, Byungrak

AU - Lee, Youngmi

AU - Lee, Chongmok

AU - Hwa Kim, Myung

PY - 2015/2/15

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AB - We report a facile synthesis of electrospun RuO2-Co3O4hybrid nanotubes as well as their enhanced electrochemical responses. Among all RuO2-Co3O4hybrid nanotubes, the polycrystalline RuO2-Co3O4hybrid 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 μAmM-1cm-2, the low detection limit of 6.6 μM, and the broad dynamic range without the interference from other biological relevant species.

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KW - Electrochemical sensor for ascorbic acid

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