Photocatalytic production of hydrogen from water by a p- and n-type polycrystalline iron oxide assembly
Journal Article
·
· J. Phys. Chem.; (United States)
The photodissociation of water to produce hydrogen has been accomplished with light in the solar range of the electromagnetic spectrum and in the absence of any external potential at 300 K. The catalyst for the reaction is a polycrystalline p/n diode assembly made out of Mg- and Si-doped iron oxide. In O.1 M Na/sub 2/SO/sub 4/ solution (pH 6) the device produces hydrogen catalytically with rates of 1-2 H/sub 2/ molecules per site per minute and its power conversion efficiency is about 0.05%. Iron oxide containing minerals could have played important roles in the photochemical evolution of the planet in the prechlorophyl era.
- Research Organization:
- Univ. of California, Berkeley
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6568843
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 86:23; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photodissociation of water by p- and n-type polycrystalline iron oxides using visible light (< 2. 7 eV) in the absence of external potential
Mg- and Si-doped iron oxides for the photocatalyzed production of hydrogen from water by visible light (2. 2 eV less than or equal to h nu less than or equal to 2. 7 eV)
Electrolytic photodissociation of chemical compounds by iron oxide photochemical diodes
Technical Report
·
Sat May 01 00:00:00 EDT 1982
·
OSTI ID:5291093
Mg- and Si-doped iron oxides for the photocatalyzed production of hydrogen from water by visible light (2. 2 eV less than or equal to h nu less than or equal to 2. 7 eV)
Journal Article
·
Tue Nov 30 23:00:00 EST 1982
· J. Catal.; (United States)
·
OSTI ID:6324297
Electrolytic photodissociation of chemical compounds by iron oxide photochemical diodes
Patent
·
Mon Dec 31 23:00:00 EST 1984
·
OSTI ID:865545
Related Subjects
08 HYDROGEN
080100* -- Hydrogen-- Production
14 SOLAR ENERGY
140500 -- Solar Energy Conversion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CONVERSION
ELEMENTS
ENERGY CONVERSION
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
IRON COMPOUNDS
IRON OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
SOLAR ENERGY CONVERSION
SPECTRA
TRANSITION ELEMENT COMPOUNDS
WATER
080100* -- Hydrogen-- Production
14 SOLAR ENERGY
140500 -- Solar Energy Conversion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CONVERSION
ELEMENTS
ENERGY CONVERSION
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
IRON COMPOUNDS
IRON OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
SOLAR ENERGY CONVERSION
SPECTRA
TRANSITION ELEMENT COMPOUNDS
WATER