Thermochemical water-splitting cycles based upon reactions of cerium- and alkaline earth phosphates
Conference
·
OSTI ID:5579635
Cerium(IV) oxide, CeO/sub 2/, reacts with derivatives of phosphoric acid, metaphosphate salts, and pyrophosphate salts at 600 to 1000/sup 0/C to produce oxygen and cerium(III) phosphates. The cerium(III) phosphates are oxidized to CeO/sub 2/ by steam at 700 to 1200/sup 0/C in the presence of alkaline earth oxides, carbonates, or halides. These two sets of reactions form the basis for a family of thermochemical cycles based upon the redox couple Ce(IV)/(III).
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5579635
- Report Number(s):
- CONF-791204-35
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
08 HYDROGEN
080102* -- Hydrogen-- Production-- Thermochemical Processes
ALKALI METAL COMPOUNDS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
INORGANIC ACIDS
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORIC ACID
PHOSPHORUS COMPOUNDS
PRODUCTION
RARE EARTH COMPOUNDS
SODIUM COMPOUNDS
SODIUM PHOSPHATES
THERMOCHEMICAL PROCESSES
WATER
080102* -- Hydrogen-- Production-- Thermochemical Processes
ALKALI METAL COMPOUNDS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
INORGANIC ACIDS
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORIC ACID
PHOSPHORUS COMPOUNDS
PRODUCTION
RARE EARTH COMPOUNDS
SODIUM COMPOUNDS
SODIUM PHOSPHATES
THERMOCHEMICAL PROCESSES
WATER