A dendritic palladium electrode for a hydrogen peroxide sensor fabricated by electrodeposition on a dynamic hydrogen-bubble template and dealloying

Chang Yong An; Kai Zhuo; Woo Jae Kim; Chan Hwa Chung

doi:10.1016/j.snb.2015.02.085

A dendritic palladium electrode for a hydrogen peroxide sensor fabricated by electrodeposition on a dynamic hydrogen-bubble template and dealloying

Chang Yong An, Kai Zhuo, Woo Jae Kim, Chan Hwa Chung

Department of Chemical Engineering & Materials Science

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

17 Scopus citations

Abstract

A dendritic Pd-Cu electrode has been prepared by co-electrodeposition of palladium and copper with high cathodic over-potentials, in which hydrogen evolution occurred. The dendritic Pd-Cu was electrochemically de-alloyed to selectively remove copper. This de-alloyed Pd-(Cu) electrode has a dramatically increased surface-area that is appropriate for electrochemical sensor applications. Electrode characteristics for use as a non-enzymatic sensor were monitored by cyclic voltammetry and amperometry, in which detection signals for hydrogen peroxide (H₂O₂) were precisely measured. The prepared dendritic Pd-(Cu) electrode demonstrated outstanding electrocatalytic activity for H₂O₂ reduction with a detection limit of 1.78 × 10^-8 M, a wide dynamic range of 50 μM to 10 mM, and high sensitivity of 915.25 μA cm^-2 mM^-1.

Original language	English
Pages (from-to)	329-333
Number of pages	5
Journal	Sensors and Actuators, B: Chemical
Volume	213
DOIs	https://doi.org/10.1016/j.snb.2015.02.085
State	Published - 5 Jul 2015

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government ( NRF-2013R1A2A2A01014102 ) and the Materials & Components Technology Development Program (10047681, Development of Low Cost Conductive Paste Capable of Fine Pattern for Touch Panel and High Conductivity for Solar Cell Using Metal Composite with Core-Shell Structure prepared by Highly Productive Wet Process) funded by the Ministry of Trade, Industry & Energy (MI, Korea).

Publisher Copyright:
© 2015 Elsevier B.V.. All rights reserved.

Keywords

Dealloying
Dendritic
Dynamic hydrogen template
Electrochemical sensor
Hydrogen peroxide
Pd electrode

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title = "A dendritic palladium electrode for a hydrogen peroxide sensor fabricated by electrodeposition on a dynamic hydrogen-bubble template and dealloying",

abstract = "A dendritic Pd-Cu electrode has been prepared by co-electrodeposition of palladium and copper with high cathodic over-potentials, in which hydrogen evolution occurred. The dendritic Pd-Cu was electrochemically de-alloyed to selectively remove copper. This de-alloyed Pd-(Cu) electrode has a dramatically increased surface-area that is appropriate for electrochemical sensor applications. Electrode characteristics for use as a non-enzymatic sensor were monitored by cyclic voltammetry and amperometry, in which detection signals for hydrogen peroxide (H2O2) were precisely measured. The prepared dendritic Pd-(Cu) electrode demonstrated outstanding electrocatalytic activity for H2O2 reduction with a detection limit of 1.78 × 10-8 M, a wide dynamic range of 50 μM to 10 mM, and high sensitivity of 915.25 μA cm-2 mM-1.",

keywords = "Dealloying, Dendritic, Dynamic hydrogen template, Electrochemical sensor, Hydrogen peroxide, Pd electrode",

author = "An, {Chang Yong} and Kai Zhuo and Kim, {Woo Jae} and Chung, {Chan Hwa}",

note = "Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government ( NRF-2013R1A2A2A01014102 ) and the Materials & Components Technology Development Program (10047681, Development of Low Cost Conductive Paste Capable of Fine Pattern for Touch Panel and High Conductivity for Solar Cell Using Metal Composite with Core-Shell Structure prepared by Highly Productive Wet Process) funded by the Ministry of Trade, Industry & Energy (MI, Korea). Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.. All rights reserved.",

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AU - Zhuo, Kai

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AU - Chung, Chan Hwa

N1 - Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government ( NRF-2013R1A2A2A01014102 ) and the Materials & Components Technology Development Program (10047681, Development of Low Cost Conductive Paste Capable of Fine Pattern for Touch Panel and High Conductivity for Solar Cell Using Metal Composite with Core-Shell Structure prepared by Highly Productive Wet Process) funded by the Ministry of Trade, Industry & Energy (MI, Korea). Publisher Copyright: © 2015 Elsevier B.V.. All rights reserved.

PY - 2015/7/5

Y1 - 2015/7/5

N2 - A dendritic Pd-Cu electrode has been prepared by co-electrodeposition of palladium and copper with high cathodic over-potentials, in which hydrogen evolution occurred. The dendritic Pd-Cu was electrochemically de-alloyed to selectively remove copper. This de-alloyed Pd-(Cu) electrode has a dramatically increased surface-area that is appropriate for electrochemical sensor applications. Electrode characteristics for use as a non-enzymatic sensor were monitored by cyclic voltammetry and amperometry, in which detection signals for hydrogen peroxide (H2O2) were precisely measured. The prepared dendritic Pd-(Cu) electrode demonstrated outstanding electrocatalytic activity for H2O2 reduction with a detection limit of 1.78 × 10-8 M, a wide dynamic range of 50 μM to 10 mM, and high sensitivity of 915.25 μA cm-2 mM-1.

AB - A dendritic Pd-Cu electrode has been prepared by co-electrodeposition of palladium and copper with high cathodic over-potentials, in which hydrogen evolution occurred. The dendritic Pd-Cu was electrochemically de-alloyed to selectively remove copper. This de-alloyed Pd-(Cu) electrode has a dramatically increased surface-area that is appropriate for electrochemical sensor applications. Electrode characteristics for use as a non-enzymatic sensor were monitored by cyclic voltammetry and amperometry, in which detection signals for hydrogen peroxide (H2O2) were precisely measured. The prepared dendritic Pd-(Cu) electrode demonstrated outstanding electrocatalytic activity for H2O2 reduction with a detection limit of 1.78 × 10-8 M, a wide dynamic range of 50 μM to 10 mM, and high sensitivity of 915.25 μA cm-2 mM-1.

KW - Dealloying

KW - Dendritic

KW - Dynamic hydrogen template

KW - Electrochemical sensor

KW - Hydrogen peroxide

KW - Pd electrode

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ER -

A dendritic palladium electrode for a hydrogen peroxide sensor fabricated by electrodeposition on a dynamic hydrogen-bubble template and dealloying

Abstract

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Keywords

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