MICROBIAL FUEL-CELLS - ELECTRICITY PRODUCTION FROM CARBOHYDRATES

被引:398
作者
ALLEN, RM [1 ]
BENNETTO, HP [1 ]
机构
[1] UNIV LONDON,KINGS COLL,BIOELECTROCHEM & BIOSENSORS GRP,CAMPDEN HILL RD,LONDON W8 7AH,ENGLAND
关键词
MICROBIAL FUEL CELL; MEDIATOR; IMMOBILIZATION; COMPUTER CONTROL; BIOANODE;
D O I
10.1007/BF02918975
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Microbial fuel cells containing Proteus vulgaris and oxidation-reduction (''redox'') mediators were investigated. The bacteria were chemically immobilized onto the surface of graphite felt electrodes, which supported production of continuous electric current and could be reused after storage. A computer-controlled carbohydrate feed system enabled the cell to generate a constant output with improved efficiency compared to the performance obtained with single large additions of fuel. The response to additions of substrate when immobilized bacteria were used was faster than that achieved with freely suspended organisms. This is attributed to the advantageous mass-transfer kinetics resulting from the proximity of the immobilized bacteria and the electrode surface.
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页码:27 / 40
页数:14
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