Method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system

Patent · Thu Nov 29 00:00:00 EST 1984

OSTI ID:5391522

Shelnutt, J A

A method is disclosed improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system for hydrogen generation. The method comprises forming an aqueous solution comprising an electron donor, methylviologen, and certain metalloporphyrins and metallochlorins, and irradiating said aqueous solution with light in the presence of a catalyst. In the photosynthesis process, solar energy is collected and stored in the form of a hydrogen. Ligands attached above and below the metalloporphyrin and metallochlorin plane are capable of sterically blocking photochemically inactive electrostatically bound ..pi..-..pi.. complexes which can develop.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• DOE Contract Number: AC04-76DP00789
• Assignee: Dept. of Energy
• Application Number: ON: DE85017723
• OSTI ID: 5391522
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
08 HYDROGEN
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HYDROGEN PRODUCTION
PHOTOSYNTHESIS
ABSORPTION
AQUEOUS SOLUTIONS
LIGANDS
PORPHYRINS
SPECTRAL REFLECTANCE
WATER
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
DISPERSIONS
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
MIXTURES
OPTICAL PROPERTIES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHYSICAL PROPERTIES
SOLUTIONS
SYNTHESIS
140505* - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)
080106 - Hydrogen- Production- Biosynthesis & Photochemical Processes
400500 - Photochemistry