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

Chemistry & Nanoscience

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

9 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

Keywords

Electrocatalysis
Electrochemical pretreatment
Gold nanoparticle
Gold oxide
NADH oxidation

Access to Document

10.1016/j.matlet.2012.10.005

Cite this

@article{4b99ee71f36244a388cea821845befca,

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 ). ",

year = "2013",

month = jan,

day = "15",

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

language = "English",

volume = "91",

pages = "330--333",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

}

TY - JOUR

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

UR - http://www.scopus.com/inward/record.url?scp=84870161205&partnerID=8YFLogxK

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

Keywords

Access to Document

Fingerprint

Cite this