Enzymatic fuel cells based on electrodeposited graphite oxide/cobalt hydroxide/chitosan composite-enzyme electrode

Hee Uk Lee, Hah Young Yoo, Tseveg Lkhagvasuren, Yoon Seok Song, Chulhwan Park, Jungbae Kim, Seung Wook Kim

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Enzymatic fuel cells (EFCs) use redox enzymes with high electron transfer rates that lead to high power density from bioavailable substrates. However, EFCs are limited by the difficult electrical wiring of the enzymes to the electrode. Therefore, deposition of Co(OH)2 onto graphite oxide (GO) was improved for efficient wiring of the enzymes. The GO/Co(OH)2/chitosan composites were electrodeposited for immobilization of glucose oxidase (GOD) or laccase on an Au electrode, respectively. The electrical properties of the bioelectrode according to cyclic voltammetry were improved using GO/Co(OH)2/chitosan composites. The anode and cathode system was composed of GOD and laccase as biocatalysts and glucose/oxygen as substrates under ambient conditions (pH 7.0 and 25°C). The EFC using GO/Co(OH)2/chitosan composites with a mediator delivered a high power density of up to 517±3.3μW/cm2 at 0.46V and open circuit voltage of 0.60V. These results provide a promising direction for further development and application of EFCs.

Original languageEnglish
Pages (from-to)342-348
Number of pages7
JournalBiosensors and Bioelectronics
Volume42
Issue number1
DOIs
Publication statusPublished - 2013 Apr 5

Fingerprint

Enzymatic fuel cells
Enzyme electrodes
Graphite
Chitosan
Biosensing Techniques
Oxides
Cobalt
Laccase
Glucose Oxidase
Electrodes
Glucose oxidase
Enzymes
Composite materials
Electric wiring
Electric Wiring
Biocatalysts
Open circuit voltage
Substrates
Immobilization
Cyclic voltammetry

Keywords

  • Cobalt hydroxide
  • Electrodeposition
  • Enzymatic fuel cell
  • Glucose oxidase
  • Graphite oxidation
  • Laccase

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering
  • Biotechnology
  • Electrochemistry

Cite this

Enzymatic fuel cells based on electrodeposited graphite oxide/cobalt hydroxide/chitosan composite-enzyme electrode. / Uk Lee, Hee; Young Yoo, Hah; Lkhagvasuren, Tseveg; Seok Song, Yoon; Park, Chulhwan; Kim, Jungbae; Kim, Seung Wook.

In: Biosensors and Bioelectronics, Vol. 42, No. 1, 05.04.2013, p. 342-348.

Research output: Contribution to journalArticle

Uk Lee, Hee ; Young Yoo, Hah ; Lkhagvasuren, Tseveg ; Seok Song, Yoon ; Park, Chulhwan ; Kim, Jungbae ; Kim, Seung Wook. / Enzymatic fuel cells based on electrodeposited graphite oxide/cobalt hydroxide/chitosan composite-enzyme electrode. In: Biosensors and Bioelectronics. 2013 ; Vol. 42, No. 1. pp. 342-348.
@article{67b03398c293405691096e764b208023,
title = "Enzymatic fuel cells based on electrodeposited graphite oxide/cobalt hydroxide/chitosan composite-enzyme electrode",
abstract = "Enzymatic fuel cells (EFCs) use redox enzymes with high electron transfer rates that lead to high power density from bioavailable substrates. However, EFCs are limited by the difficult electrical wiring of the enzymes to the electrode. Therefore, deposition of Co(OH)2 onto graphite oxide (GO) was improved for efficient wiring of the enzymes. The GO/Co(OH)2/chitosan composites were electrodeposited for immobilization of glucose oxidase (GOD) or laccase on an Au electrode, respectively. The electrical properties of the bioelectrode according to cyclic voltammetry were improved using GO/Co(OH)2/chitosan composites. The anode and cathode system was composed of GOD and laccase as biocatalysts and glucose/oxygen as substrates under ambient conditions (pH 7.0 and 25°C). The EFC using GO/Co(OH)2/chitosan composites with a mediator delivered a high power density of up to 517±3.3μW/cm2 at 0.46V and open circuit voltage of 0.60V. These results provide a promising direction for further development and application of EFCs.",
keywords = "Cobalt hydroxide, Electrodeposition, Enzymatic fuel cell, Glucose oxidase, Graphite oxidation, Laccase",
author = "{Uk Lee}, Hee and {Young Yoo}, Hah and Tseveg Lkhagvasuren and {Seok Song}, Yoon and Chulhwan Park and Jungbae Kim and Kim, {Seung Wook}",
year = "2013",
month = "4",
day = "5",
doi = "10.1016/j.bios.2012.10.020",
language = "English",
volume = "42",
pages = "342--348",
journal = "Biosensors",
issn = "0956-5663",
publisher = "Elsevier Limited",
number = "1",

}

TY - JOUR

T1 - Enzymatic fuel cells based on electrodeposited graphite oxide/cobalt hydroxide/chitosan composite-enzyme electrode

AU - Uk Lee, Hee

AU - Young Yoo, Hah

AU - Lkhagvasuren, Tseveg

AU - Seok Song, Yoon

AU - Park, Chulhwan

AU - Kim, Jungbae

AU - Kim, Seung Wook

PY - 2013/4/5

Y1 - 2013/4/5

N2 - Enzymatic fuel cells (EFCs) use redox enzymes with high electron transfer rates that lead to high power density from bioavailable substrates. However, EFCs are limited by the difficult electrical wiring of the enzymes to the electrode. Therefore, deposition of Co(OH)2 onto graphite oxide (GO) was improved for efficient wiring of the enzymes. The GO/Co(OH)2/chitosan composites were electrodeposited for immobilization of glucose oxidase (GOD) or laccase on an Au electrode, respectively. The electrical properties of the bioelectrode according to cyclic voltammetry were improved using GO/Co(OH)2/chitosan composites. The anode and cathode system was composed of GOD and laccase as biocatalysts and glucose/oxygen as substrates under ambient conditions (pH 7.0 and 25°C). The EFC using GO/Co(OH)2/chitosan composites with a mediator delivered a high power density of up to 517±3.3μW/cm2 at 0.46V and open circuit voltage of 0.60V. These results provide a promising direction for further development and application of EFCs.

AB - Enzymatic fuel cells (EFCs) use redox enzymes with high electron transfer rates that lead to high power density from bioavailable substrates. However, EFCs are limited by the difficult electrical wiring of the enzymes to the electrode. Therefore, deposition of Co(OH)2 onto graphite oxide (GO) was improved for efficient wiring of the enzymes. The GO/Co(OH)2/chitosan composites were electrodeposited for immobilization of glucose oxidase (GOD) or laccase on an Au electrode, respectively. The electrical properties of the bioelectrode according to cyclic voltammetry were improved using GO/Co(OH)2/chitosan composites. The anode and cathode system was composed of GOD and laccase as biocatalysts and glucose/oxygen as substrates under ambient conditions (pH 7.0 and 25°C). The EFC using GO/Co(OH)2/chitosan composites with a mediator delivered a high power density of up to 517±3.3μW/cm2 at 0.46V and open circuit voltage of 0.60V. These results provide a promising direction for further development and application of EFCs.

KW - Cobalt hydroxide

KW - Electrodeposition

KW - Enzymatic fuel cell

KW - Glucose oxidase

KW - Graphite oxidation

KW - Laccase

UR - http://www.scopus.com/inward/record.url?scp=84871656828&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84871656828&partnerID=8YFLogxK

U2 - 10.1016/j.bios.2012.10.020

DO - 10.1016/j.bios.2012.10.020

M3 - Article

VL - 42

SP - 342

EP - 348

JO - Biosensors

JF - Biosensors

SN - 0956-5663

IS - 1

ER -