Biologically assisted photoelectrochemical cell
Conference
·
OSTI ID:6335526
Chromatophore vesicles isolated from the photosynthetic bacterium Rhodospeudomonas sphaeroides R-26 were adsorbed as a film on SnO/sub 2/ electrodes and examined in a photoelectrochemical cell. The photovoltages and photocurrents generated by the cell under steady-state red light irradiation were dependent on the state of the chromatophores as modified by the chemical properties of the cell electrolyte including pH, salt concentration, redox couple, and redox potential. The cell was operable in the redox range where the c/sub 2/ cytochrome was reduced and the quinone pool was oxidized. Both these components are carriers in the cyclic electron transport system of bacterial photosynthesis and must control electron transport between the chromatophore membrane and the electrodes.
- Research Organization:
- Solar Energy Research Inst., Golden, CO (USA)
- DOE Contract Number:
- AC02-77CH00178
- OSTI ID:
- 6335526
- Report Number(s):
- SERI/TP-623-1164; CONF-810526-33; ON: DE81025905
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
AROMATICS
BACTERIA
BENZOQUINONES
CHALCOGENIDES
CURRENTS
CYTOCHROMES
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROMAGNETIC RADIATION
ELECTRON TRANSFER
EQUIPMENT
FILMS
MICROORGANISMS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PHOTOELECTROCHEMICAL CELLS
PHOTOSYNTHETIC BACTERIA
PHYSICAL PROPERTIES
PIGMENTS
QUINONES
RADIATIONS
REDOX POTENTIAL
RHODOPSEUDOMONAS
SALINITY
SOLAR EQUIPMENT
TIN COMPOUNDS
TIN OXIDES
VISIBLE RADIATION
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
AROMATICS
BACTERIA
BENZOQUINONES
CHALCOGENIDES
CURRENTS
CYTOCHROMES
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROMAGNETIC RADIATION
ELECTRON TRANSFER
EQUIPMENT
FILMS
MICROORGANISMS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PHOTOELECTROCHEMICAL CELLS
PHOTOSYNTHETIC BACTERIA
PHYSICAL PROPERTIES
PIGMENTS
QUINONES
RADIATIONS
REDOX POTENTIAL
RHODOPSEUDOMONAS
SALINITY
SOLAR EQUIPMENT
TIN COMPOUNDS
TIN OXIDES
VISIBLE RADIATION