Summary
A blue-green algae, Anabaena N-7363, was immobilized in 2% agar gel. The hydrogen productivity of the immobilized algae was three times higher than that of free algae. The maximum hydrogen production rate by the immobilized blue-green algae was 0.52 μ moles h−1 g−1 (of wet gel) in the medium without nitrogen sources under illumination (10,000 lux). The oxygen evolved was then removed by a reactor containing aerobic bacteria. A photo-current of 15–20 mA was continuously produced for 7 days by the photochemical fuel cell system consisting of the immobilized Anabaena reactor, the oxygen-removing reactor and the hydrogen-oxygen fuel cell. The conversion ratio of hydrogen to current was from 80% to 100%.
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Kayano, H., Karube, I., Matsunaga, T. et al. A photochemical fuel cell system using Anabaena N-7363. European J. Appl. Microbiol. Biotechnol. 12, 1–5 (1981). https://doi.org/10.1007/BF00508110
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DOI: https://doi.org/10.1007/BF00508110