Solid compositions for fuel cells, sensors and catalysts

Patent · Tue Jul 28 00:00:00 EDT 1992

OSTI ID:6988273

Madou, M J; Otagawa, T; Sher, A

This patent describes the use of a solid material as an electrolyte for a fuel cell or for use as a catalyst, each solid material having a polycrystal or single crystal structure. It comprises: a structure of the formula; A[sub y]B[sub 1 [minus] y]F[sub 2 + y]; wherein: A is independently selected from lanthanum, cerium, neodymium, praseodymium, scandium or mixtures thereof, B is independently selected form strontium, calcium, barium or magnesium and y is between about 0.0001 and 1; a structure of the formula: A[sub y]B[sub 1 [minus] y [minus] z]LiF[sub i + y + z]; a structure of the formula: N[sub 1 [minus] n [minus] m]U[sub n]Ce[sub m]F[sub 2 + 2n + m]; a structure of the formula: LaO[sub 1 [minus] p]F[sub 1 + 2p].

• Assignee: SRI International, Menlo Park, CA (United States)
• Patent Number(s): US 5134042; A
• Application Number: PPN: US 7-365910
• OSTI ID: 6988273
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
ALKALINE EARTH METALS
BARIUM
CALCIUM
CATALYSTS
CERIUM
CHEMICAL COMPOSITION
CRYSTAL STRUCTURE
CRYSTALS
DIRECT ENERGY CONVERTERS
DISPERSIONS
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELEMENTS
FUEL CELLS
LANTHANUM
MAGNESIUM
MATERIALS TESTING
METALS
MIXTURES
MONOCRYSTALS
NEODYMIUM
POLYCRYSTALS
PRASEODYMIUM
RARE EARTHS
SCANDIUM
SOLID ELECTROLYTE FUEL CELLS
STRONTIUM
TESTING
TRANSITION ELEMENTS