Efficient electrochemical regeneration of nicotinamide cofactors using a cyclopentadienyl-rhodium complex on functionalized indium tin oxide electrodes

Soojin Kim; Ga Ye Lee; Jungha Lee; Eswaran Rajkumar; Jin Ook Baeg; Jinheung Kim

doi:10.1016/j.electacta.2013.02.074

Efficient electrochemical regeneration of nicotinamide cofactors using a cyclopentadienyl-rhodium complex on functionalized indium tin oxide electrodes

Soojin Kim, Ga Ye Lee, Jungha Lee, Eswaran Rajkumar, Jin Ook Baeg, Jinheung Kim

Department of Chemistry & Nanoscience

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

12 Scopus citations

Abstract

Functionalized ITO electrodes are used to regenerate NADH using [Cp*Rh(bpy)(H₂O)]²⁺ (Cp* = pentamethylcyclopentadienyl, bpy = 2,2′-bipyridine) electrochemically in a buffer solution. Amino- and mercapto-functionalized electrodes featured higher activity and stability for electrocatalytic generation of NADH than a bare ITO electrode. Effect of metal nanoparticles was also studied on modified ITO electrodes and the addition of platinum nanoparticles even resulted in improved activity. The electrochemical regeneration was somewhat affected in the presence of dioxygen, but not significantly. In addition, a conversion of carbon dioxide was carried out utilizing the electrochemically generated NADH and formate dehydrogenase to produce formic acid.

Original language	English
Pages (from-to)	141-146
Number of pages	6
Journal	Electrochimica Acta
Volume	96
DOIs	https://doi.org/10.1016/j.electacta.2013.02.074
State	Published - 30 Apr 2013

Bibliographical note

Funding Information:
This work is supported by the KRICT-2020 Project Program , the National Research Foundation of Korea Grant funded by the Korean Government (2010-0009525 and SRC Program: 2012-0000648), and BK21 (to S.K., G.Y.L., and J.L.).

Keywords

Carbon dioxide
Formate dehydrogenase
Modified electrodes
NADH regeneration
Platinum nanoparticle
Rhodium catalyst

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10.1016/j.electacta.2013.02.074

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title = "Efficient electrochemical regeneration of nicotinamide cofactors using a cyclopentadienyl-rhodium complex on functionalized indium tin oxide electrodes",

abstract = "Functionalized ITO electrodes are used to regenerate NADH using [Cp*Rh(bpy)(H2O)]2+ (Cp* = pentamethylcyclopentadienyl, bpy = 2,2′-bipyridine) electrochemically in a buffer solution. Amino- and mercapto-functionalized electrodes featured higher activity and stability for electrocatalytic generation of NADH than a bare ITO electrode. Effect of metal nanoparticles was also studied on modified ITO electrodes and the addition of platinum nanoparticles even resulted in improved activity. The electrochemical regeneration was somewhat affected in the presence of dioxygen, but not significantly. In addition, a conversion of carbon dioxide was carried out utilizing the electrochemically generated NADH and formate dehydrogenase to produce formic acid.",

keywords = "Carbon dioxide, Formate dehydrogenase, Modified electrodes, NADH regeneration, Platinum nanoparticle, Rhodium catalyst",

author = "Soojin Kim and Lee, {Ga Ye} and Jungha Lee and Eswaran Rajkumar and Baeg, {Jin Ook} and Jinheung Kim",

note = "Funding Information: This work is supported by the KRICT-2020 Project Program , the National Research Foundation of Korea Grant funded by the Korean Government (2010-0009525 and SRC Program: 2012-0000648), and BK21 (to S.K., G.Y.L., and J.L.). ",

year = "2013",

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day = "30",

doi = "10.1016/j.electacta.2013.02.074",

language = "English",

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pages = "141--146",

journal = "Electrochimica Acta",

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T1 - Efficient electrochemical regeneration of nicotinamide cofactors using a cyclopentadienyl-rhodium complex on functionalized indium tin oxide electrodes

AU - Kim, Soojin

AU - Lee, Ga Ye

AU - Lee, Jungha

AU - Rajkumar, Eswaran

AU - Baeg, Jin Ook

AU - Kim, Jinheung

N1 - Funding Information: This work is supported by the KRICT-2020 Project Program , the National Research Foundation of Korea Grant funded by the Korean Government (2010-0009525 and SRC Program: 2012-0000648), and BK21 (to S.K., G.Y.L., and J.L.).

PY - 2013/4/30

Y1 - 2013/4/30

N2 - Functionalized ITO electrodes are used to regenerate NADH using [Cp*Rh(bpy)(H2O)]2+ (Cp* = pentamethylcyclopentadienyl, bpy = 2,2′-bipyridine) electrochemically in a buffer solution. Amino- and mercapto-functionalized electrodes featured higher activity and stability for electrocatalytic generation of NADH than a bare ITO electrode. Effect of metal nanoparticles was also studied on modified ITO electrodes and the addition of platinum nanoparticles even resulted in improved activity. The electrochemical regeneration was somewhat affected in the presence of dioxygen, but not significantly. In addition, a conversion of carbon dioxide was carried out utilizing the electrochemically generated NADH and formate dehydrogenase to produce formic acid.

AB - Functionalized ITO electrodes are used to regenerate NADH using [Cp*Rh(bpy)(H2O)]2+ (Cp* = pentamethylcyclopentadienyl, bpy = 2,2′-bipyridine) electrochemically in a buffer solution. Amino- and mercapto-functionalized electrodes featured higher activity and stability for electrocatalytic generation of NADH than a bare ITO electrode. Effect of metal nanoparticles was also studied on modified ITO electrodes and the addition of platinum nanoparticles even resulted in improved activity. The electrochemical regeneration was somewhat affected in the presence of dioxygen, but not significantly. In addition, a conversion of carbon dioxide was carried out utilizing the electrochemically generated NADH and formate dehydrogenase to produce formic acid.

KW - Carbon dioxide

KW - Formate dehydrogenase

KW - Modified electrodes

KW - NADH regeneration

KW - Platinum nanoparticle

KW - Rhodium catalyst

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U2 - 10.1016/j.electacta.2013.02.074

DO - 10.1016/j.electacta.2013.02.074

M3 - Article

AN - SCOPUS:84875082769

SN - 0013-4686

VL - 96

SP - 141

EP - 146

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Efficient electrochemical regeneration of nicotinamide cofactors using a cyclopentadienyl-rhodium complex on functionalized indium tin oxide electrodes

Abstract

Bibliographical note

Keywords

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