The effect of electrochemical pretreatment on the catalytic activity of carbon-supported gold nanoparticles for NADH oxidation

Jun Ho Shim; Jiyoung Kim; Ara Go; Chongmok Lee; Youngmi Lee

doi:10.1016/j.matlet.2012.10.005

The effect of electrochemical pretreatment on the catalytic activity of carbon-supported gold nanoparticles for NADH oxidation

Jun Ho Shim, Jiyoung Kim, Ara Go, Chongmok Lee, Youngmi Lee

Department of Chemistry & Nanoscience

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

10 Scopus citations

Abstract

The electrochemical oxidation of nicotinamide adenine dinucleotide (NADH) is studied systematically on four types of electrodes, i.e., glassy carbon (GC), carbon (C), Au nanoparticles (AuNP), and C-supported AuNP (AuNP/C) in a 0.05 M phosphate buffer solution (pH 7.4) before and after the electrochemical pretreatment carried out by repetitive potential scanning between -0.2 V and 1.0 V (vs. SCE) for 100 cycles. This simple pretreatment improves the electrocatalytic activity of the AuNP/C toward the NADH oxidation remarkably, suggesting the key role of Au oxide layers in facilitating the NADH electrochemical oxidation.

Original language	English
Pages (from-to)	330-333
Number of pages	4
Journal	Materials Letters
Volume	91
DOIs	https://doi.org/10.1016/j.matlet.2012.10.005
State	Published - 15 Jan 2013

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (Nos. 2012-0005422 and 2012-0003779 ).

Keywords

Electrocatalysis
Electrochemical pretreatment
Gold nanoparticle
Gold oxide
NADH oxidation

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10.1016/j.matlet.2012.10.005

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title = "The effect of electrochemical pretreatment on the catalytic activity of carbon-supported gold nanoparticles for NADH oxidation",

abstract = "The electrochemical oxidation of nicotinamide adenine dinucleotide (NADH) is studied systematically on four types of electrodes, i.e., glassy carbon (GC), carbon (C), Au nanoparticles (AuNP), and C-supported AuNP (AuNP/C) in a 0.05 M phosphate buffer solution (pH 7.4) before and after the electrochemical pretreatment carried out by repetitive potential scanning between -0.2 V and 1.0 V (vs. SCE) for 100 cycles. This simple pretreatment improves the electrocatalytic activity of the AuNP/C toward the NADH oxidation remarkably, suggesting the key role of Au oxide layers in facilitating the NADH electrochemical oxidation.",

keywords = "Electrocatalysis, Electrochemical pretreatment, Gold nanoparticle, Gold oxide, NADH oxidation",

author = "Shim, {Jun Ho} and Jiyoung Kim and Ara Go and Chongmok Lee and Youngmi Lee",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (Nos. 2012-0005422 and 2012-0003779 ). ",

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doi = "10.1016/j.matlet.2012.10.005",

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T1 - The effect of electrochemical pretreatment on the catalytic activity of carbon-supported gold nanoparticles for NADH oxidation

AU - Shim, Jun Ho

AU - Kim, Jiyoung

AU - Go, Ara

AU - Lee, Chongmok

AU - Lee, Youngmi

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (Nos. 2012-0005422 and 2012-0003779 ).

PY - 2013/1/15

Y1 - 2013/1/15

N2 - The electrochemical oxidation of nicotinamide adenine dinucleotide (NADH) is studied systematically on four types of electrodes, i.e., glassy carbon (GC), carbon (C), Au nanoparticles (AuNP), and C-supported AuNP (AuNP/C) in a 0.05 M phosphate buffer solution (pH 7.4) before and after the electrochemical pretreatment carried out by repetitive potential scanning between -0.2 V and 1.0 V (vs. SCE) for 100 cycles. This simple pretreatment improves the electrocatalytic activity of the AuNP/C toward the NADH oxidation remarkably, suggesting the key role of Au oxide layers in facilitating the NADH electrochemical oxidation.

AB - The electrochemical oxidation of nicotinamide adenine dinucleotide (NADH) is studied systematically on four types of electrodes, i.e., glassy carbon (GC), carbon (C), Au nanoparticles (AuNP), and C-supported AuNP (AuNP/C) in a 0.05 M phosphate buffer solution (pH 7.4) before and after the electrochemical pretreatment carried out by repetitive potential scanning between -0.2 V and 1.0 V (vs. SCE) for 100 cycles. This simple pretreatment improves the electrocatalytic activity of the AuNP/C toward the NADH oxidation remarkably, suggesting the key role of Au oxide layers in facilitating the NADH electrochemical oxidation.

KW - Electrocatalysis

KW - Electrochemical pretreatment

KW - Gold nanoparticle

KW - Gold oxide

KW - NADH oxidation

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U2 - 10.1016/j.matlet.2012.10.005

DO - 10.1016/j.matlet.2012.10.005

M3 - Article

AN - SCOPUS:84870161205

SN - 0167-577X

VL - 91

SP - 330

EP - 333

JO - Materials Letters

JF - Materials Letters

ER -

The effect of electrochemical pretreatment on the catalytic activity of carbon-supported gold nanoparticles for NADH oxidation

Abstract

Bibliographical note

Keywords

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