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Microorganism-immobilized carbon nanoparticle anode for microbial fuel cells based on direct electron transfer.

Abstract：

:A fast and convenient bacterial immobilization method was proposed as an attempt to improve the anode efficiency of a microbial fuel cell, in which bacteria were entrapped into carbon nanoparticle matrix. The direct electron transfer from the entrapped bacterial cells to the anode was verified using cyclic voltammogram (CV). Using the immobilized bioanode, the start-up time of the MFC was greatly reduced. Meanwhile, the maximum power density of 1,947 mW m⁻² with the modified anode was much higher than that with the biofilm-based carbon cloth anode (1,479 mW m⁻²). Impedance measurements suggested that performance improvement resulted from the decrease in charge transfer and diffusion resistances. The results demonstrated that bacteria immobilization using carbon nanoparticle matrix was a simple and efficient approach for improving the anodes performances in MFCs.

journal_name

Appl Microbiol Biotechnol

journal_title

Applied microbiology and biotechnology

authors

Yuan Y,Zhou S,Xu N,Zhuang L

doi

10.1007/s00253-010-3013-5

subject

Has Abstract

pub_date

2011-03-01 00:00:00

pages

1629-35

issue

5

eissn

0175-7598

issn

1432-0614

journal_volume

89

pub_type

杂志文章

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