Non-enzymatic electrochemical CuO nanoflowers sensor for hydrogen peroxide detection

Min Jung Song; Sung Woo Hwang; Dongmok Whang

doi:10.1016/j.talanta.2009.09.061

Non-enzymatic electrochemical CuO nanoflowers sensor for hydrogen peroxide detection

Min Jung Song
, Sung Woo Hwang
, Dongmok Whang

Korea University
Sungkyunkwan University

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

298 Scopus citations

Abstract

The electrocatalytic activity of a CuO flower-like nanostructured electrode was investigated in terms of its application to enzyme-less amperometric H₂O₂ sensors. The CuO nanoflowers film was directly formed by chemical oxidation of copper foil under hydrothermal condition and then used as active electrode material of non-enzymatic electrochemical sensors for H₂O₂ detection under alkaline conditions. The sensitivity of the sensor with CuO nanoflowers electrode was 88.4 μA/mM cm² with a linear response in the range from 4.25 × 10^-5 to 4 × 10^-2 M and a detection limit of 0.167 μM (S/N = 3). Excellent electrocatalytic activity, large surface-to-volume ratio and efficient electron transport property of CuO nanoflowers electrode have enabled stable and highly sensitive performance for the non-enzymatic H₂O₂ sensor.

Original language	English
Pages (from-to)	1648-1652
Number of pages	5
Journal	Talanta
Volume	80
Issue number	5
DOIs	https://doi.org/10.1016/j.talanta.2009.09.061
State	Published - 15 Mar 2010
Externally published	Yes

Keywords

Copper oxide nanoflower
Effective surface area
Electrochemical sensor
Hydrogen peroxide sensor
Non-enzymatic sensor

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10.1016/j.talanta.2009.09.061

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title = "Non-enzymatic electrochemical CuO nanoflowers sensor for hydrogen peroxide detection",

abstract = "The electrocatalytic activity of a CuO flower-like nanostructured electrode was investigated in terms of its application to enzyme-less amperometric H2O2 sensors. The CuO nanoflowers film was directly formed by chemical oxidation of copper foil under hydrothermal condition and then used as active electrode material of non-enzymatic electrochemical sensors for H2O2 detection under alkaline conditions. The sensitivity of the sensor with CuO nanoflowers electrode was 88.4 μA/mM cm2 with a linear response in the range from 4.25 × 10-5 to 4 × 10-2 M and a detection limit of 0.167 μM (S/N = 3). Excellent electrocatalytic activity, large surface-to-volume ratio and efficient electron transport property of CuO nanoflowers electrode have enabled stable and highly sensitive performance for the non-enzymatic H2O2 sensor.",

keywords = "Copper oxide nanoflower, Effective surface area, Electrochemical sensor, Hydrogen peroxide sensor, Non-enzymatic sensor",

author = "Song, \{Min Jung\} and Hwang, \{Sung Woo\} and Dongmok Whang",

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doi = "10.1016/j.talanta.2009.09.061",

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TY - JOUR

T1 - Non-enzymatic electrochemical CuO nanoflowers sensor for hydrogen peroxide detection

AU - Song, Min Jung

AU - Hwang, Sung Woo

AU - Whang, Dongmok

PY - 2010/3/15

Y1 - 2010/3/15

N2 - The electrocatalytic activity of a CuO flower-like nanostructured electrode was investigated in terms of its application to enzyme-less amperometric H2O2 sensors. The CuO nanoflowers film was directly formed by chemical oxidation of copper foil under hydrothermal condition and then used as active electrode material of non-enzymatic electrochemical sensors for H2O2 detection under alkaline conditions. The sensitivity of the sensor with CuO nanoflowers electrode was 88.4 μA/mM cm2 with a linear response in the range from 4.25 × 10-5 to 4 × 10-2 M and a detection limit of 0.167 μM (S/N = 3). Excellent electrocatalytic activity, large surface-to-volume ratio and efficient electron transport property of CuO nanoflowers electrode have enabled stable and highly sensitive performance for the non-enzymatic H2O2 sensor.

AB - The electrocatalytic activity of a CuO flower-like nanostructured electrode was investigated in terms of its application to enzyme-less amperometric H2O2 sensors. The CuO nanoflowers film was directly formed by chemical oxidation of copper foil under hydrothermal condition and then used as active electrode material of non-enzymatic electrochemical sensors for H2O2 detection under alkaline conditions. The sensitivity of the sensor with CuO nanoflowers electrode was 88.4 μA/mM cm2 with a linear response in the range from 4.25 × 10-5 to 4 × 10-2 M and a detection limit of 0.167 μM (S/N = 3). Excellent electrocatalytic activity, large surface-to-volume ratio and efficient electron transport property of CuO nanoflowers electrode have enabled stable and highly sensitive performance for the non-enzymatic H2O2 sensor.

KW - Copper oxide nanoflower

KW - Effective surface area

KW - Electrochemical sensor

KW - Hydrogen peroxide sensor

KW - Non-enzymatic sensor

UR - https://www.scopus.com/pages/publications/75749132343

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DO - 10.1016/j.talanta.2009.09.061

M3 - Article

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SN - 0039-9140

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SP - 1648

EP - 1652

JO - Talanta

JF - Talanta

IS - 5

ER -

Non-enzymatic electrochemical CuO nanoflowers sensor for hydrogen peroxide detection

Abstract

Keywords

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