Electron transfer reactions in microporous solids

Technical Report · Fri Jan 01 00:00:00 EST 1993

DOI:https://doi.org/10.2172/6696436· OSTI ID:6696436

Mallouk, T E

Basic thrust the research program involves use of microporous solids (zeolites, clays, layered and tunnel structure oxide semiconductors) as organizing media for artificial photosynthetic systems. Purpose of the microporous solid is twofold. First, it induces spatial organization of photoactive and electroactive components (sensitizers, semiconductor particles, electron relays, and catalysts) at the solid-solution interface, enhancing the quantum efficiency of charge separation and separating physically the ultimate electron donor and acceptor in the electron transport chain. Second, since the microcrystalline solid admits only molecules of a certain charge and size, it is possible to achieve permanent charge separation by sieving chemical photoproducts (e.g., H[sub 2] and I[sub 3][sup [minus]], or H[sub 2] and O[sub 2)] from each other. Spectroscopic and electrochemical methods are used to study the kinetics of electron transfer reactions in these hybrid molecular/solid state assemblies.

• Research Organization: Texas Univ., Austin, TX (United States). Dept. of Chemistry and Biochemistry
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG05-87ER13789
• OSTI ID: 6696436
• Report Number(s): DOE/ER/13789-6; ON: DE93011261
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
PHOTOSYNTHESIS
SOLIDS
ELECTRON TRANSFER
ZEOLITES
BIPYRIDINES
ELECTROCHEMISTRY
LAYERS
MONTMORILLONITE
NIOBATES
OXIDES
PLATINUM
POROUS MATERIALS
PROGRESS REPORT
RUTHENIUM COMPLEXES
SEMICONDUCTOR MATERIALS
AZINES
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CLAYS
COMPLEXES
DOCUMENT TYPES
ELEMENTS
HETEROCYCLIC COMPOUNDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
NIOBIUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PLATINUM METALS
PYRIDINES
REFRACTORY METAL COMPOUNDS
SILICATE MINERALS
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
140505* - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)