Effects of light, CO2 and inhibitors on the current output of biofuel cells containing the photosynthetic organism Synechococcus sp
✍ Scribed by Tatsuo Yagishita; Takashi Horigome; Kazuko Tanaka
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2007
- Tongue
- English
- Weight
- 562 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0268-2575
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✦ Synopsis
The current output of the biofuel cells containing a marine alga, Synechococcus sp. and an electron transport mediator, 2-hydroxy-1 ,Cnaphthoquinone (HNQ) was increased under illumination and in the presence of CO,. The inhibitory effects of carbonyl cyanide m-chlorophenylhydrazone (CCCP), 3-(3,4-dichlorophenyl)-l, 1 -dimethylurea (DCMU), 2,5-dibromomethylisopropyl-pbenzoquinone (DBMIB), phenylmercury acetate (PMA) and N,N-dicyclohexylcarbodiimide (DCCD) on the output current of fuel cells run in the light suggested that HNQ accepts electrons mainly at the site of ferredoxin-NADP' reductase (FNR) in the electron transfer chain. The inhibition of light-induced generation of current output by CCCP indicates that the current is derived from photosynthetic oxidation of water. Endogenous glycogen in algae is required to sustain a steady current output from the fuel cells.