Improvement of power generation of enzyme fuel cell by novel GO/Co/chitosan electrodeposition

Dong Sup Kim, Han Suk Choi, Xiaoguang Yang, Ji Hyun Yang, Ja Hyun Lee, Hah Young Yoo, Jinyoung Lee, Chulhwan Park, Seung Wook Kim

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

An enzyme fuel cell (EFC) using composite graphite oxide/cobalt/chitosan (GO/Co/chitosan) mediator is prepared to convert chemical energy into electrical energy. The degree of chitosan deacetylation affects physicochemical and electrochemical properties of the EFC. The soluble molecular weight of chitosan polymer influences the viscosity of chitosan solution. Also, the solubility of chitosan influences the electrochemical properties of the EFC assembled by electrodeposition of GO/Co/chitosan mediator particles on electrodes. EFC performance could be improved by addition of acetic acid during deacetylation. Acetic acid (5% (v/v)) showed an efficient electron transfer between the mediator and electrolyte in the EFC. The EFC produced a potential voltage of −0.548 V vs. Ag/AgCl with power density of 1198.09 μW/cm2. The power generation was the highest at slightly acidic condition and without addition of cofactor. This study shows the efficient participation of chitosan on electron transfer in EFC application.

Original languageEnglish
Pages (from-to)108-114
Number of pages7
JournalJournal of Industrial and Engineering Chemistry
Volume81
DOIs
Publication statusPublished - 2020 Jan 25

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korean government (MSIP). (No. 2014R1A2A2A01007321 and NRF-2019R1A2C1006793) and the Industrial Strategic Technology Development Program (10051513) funded by the Ministry of Trade, Industry, and Energy (MI, Korea).

Funding Information:
This work was supported by the National Research Foundation of Korea ( NRF ) Grant funded by the Korean government ( MSIP ). (No. 2014R1A2A2A01007321 and NRF-2019R1A2C1006793 ) and the Industrial Strategic Technology Development Program ( 10051513 ) funded by the Ministry of Trade, Industry, and Energy (MI, Korea).

Publisher Copyright:
© 2019 The Korean Society of Industrial and Engineering Chemistry

Keywords

  • Acetic acid
  • Chitosan
  • Enzyme fuel cell
  • Glucose oxidase
  • Laccase
  • Viscosity

ASJC Scopus subject areas

  • General Chemical Engineering

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