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

doi:10.1016/j.bios.2012.10.020

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

Department of Chemical and Biological Engineering

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

56 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 language	English
Pages (from-to)	342-348
Number of pages	7
Journal	Biosensors and Bioelectronics
Volume	42
Issue number	1
DOIs	https://doi.org/10.1016/j.bios.2012.10.020
Publication status	Published - 2013 Apr 5

Bibliographical note

Funding Information:
This work was supported by the Advanced Biomass R&D Center ( ABC-2010–0029799 ) of Korea Grant funded by the Ministry of Education, Science and Technology .

Keywords

Cobalt hydroxide
Electrodeposition
Enzymatic fuel cell
Glucose oxidase
Graphite oxidation
Laccase

ASJC Scopus subject areas

Biotechnology
Biophysics
Biomedical Engineering
Electrochemistry

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10.1016/j.bios.2012.10.020

Cite this

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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 {Wook Kim}, Seung",

note = "Funding Information: This work was supported by the Advanced Biomass R&D Center ( ABC-2010–0029799 ) of Korea Grant funded by the Ministry of Education, Science and Technology .",

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AU - Uk Lee, Hee

AU - Young Yoo, Hah

AU - Lkhagvasuren, Tseveg

AU - Seok Song, Yoon

AU - Park, Chulhwan

AU - Kim, Jungbae

AU - Wook Kim, Seung

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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

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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