Thermochemical water-splitting cycles based upon reactions of cerium- and alkaline earth phosphates

Conference · Mon Jan 01 00:00:00 EST 1979

OSTI ID:5579635

Robinson, P. R.; Bamberger, C. E.

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
• Resource Relation: Conference: 2. Miami international conference on alternative energy sources, Miami Beach, FL, USA, 10 Dec 1979
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
HYDROGEN PRODUCTION
THERMOCHEMICAL PROCESSES
OXYGEN
PRODUCTION
CERIUM OXIDES
PHOSPHORIC ACID
SODIUM PHOSPHATES
WATER
ALKALI METAL COMPOUNDS
CERIUM COMPOUNDS
CHALCOGENIDES
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
RARE EARTH COMPOUNDS
SODIUM COMPOUNDS
080102* - Hydrogen- Production- Thermochemical Processes