Solid compositions for fuel cells, sensors and catalysts

Details Solid compositions for fuel cells, sensors and catalysts Solid compositions for fuel cells, sensors and catalysts

1986-11-26

1989-07-25

Kalafut, Stephen J.

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 33, 429191, 252 622, 204426, H01M 800, H01M 810, G01N 2726

Patent

active

048513032

ABSTRACT:
The present invention relates to solid materials for use as electrolyte for a fuel cell, or for a sensor, or as a catalyst. Representative structures include lanthanum fluoride, lead potassium fluoride, lead bismuth fluoride, lanthanum strontium fluoride, lanthan strontium lithium fluoride, calcium uranium, cesium fluoride, PbSnFy, KSn.sub.2 F.sub.4, SrCl.sub.2.KCl, LaOF.sub.2, PbSnF.sub.8.PbSnO, lanthanum oxyfluoride, oxide, calcium fluoride, SmNdFO, and the like. In another aspect, the present invention relates to a composite and a process to obtain it of the formula:

REFERENCES:
patent: 4352869 (1982-10-01), Mellors
patent: 4402924 (1983-09-01), McVicker
Meuldijk et al, "Charge Transport in Sr.sub.1-x La.sub.x F.sub.2+x Solid Solutions. An Ionic Thermocurrent Study", Physical Review B, v. 28, No. 2, pp. 1036-1047, Jul. 1983.
Hartog et al, "Defect Structure and Charge Transport in Solid Solutions Ba.sub.1-x La.sub.x F.sub.2+x ", Physcial Review B, v. 28, No. 10, pp. 6031-6040, Nov. 1983.
Bockris et al, "The Electrocatalysis of Oxygen Evolution on Perouskites," Journal Elect. Soc., vol. 131, No. 2, pp. 290-302, Feb. 1984.
Kuwata et al, "A Potentiometric Oxygen Sensor Using LaF.sub.3 Single Crystal Operative at Room Temperature", Chemistry Letters, 1984, No. 6 (Jun.), pp. 981-982.
Chemical Abstracts, vol. 103, No. 8982, 7/15/85.
Patent Abstracts of Japan, vol. 10, No. 324 (P-512) (2380), Nov. 5, 1986 & JP, A, 61132855. (Shimadzu Corp) Jun. 20, 1986, see abstract.
Journal of the Electrochemical Society, vol. 120, No. 12, Dec. 1973, B. C. LaRoy et al.: "A Solid-State Electrode for Reducible gases", pp. 1668-1673, see abstract; p. 1668, left-hand column, paragraphs 1, 3 cited in the application.
Journal of the Electrochemical Society, vol. 120, No. 2, Dec. 1973, A. C. Lilly et al.: "Transport Properties of LaF.sub.3 Thin Films", pp. 1673-1676, see page 1673, left-hand column, paragraph 1.
Solid State Ionics, vol. 1, 1980, North Holland Publishing Company (NL), J. Schoonman et al.: "Solid Electrolyte Properties of LaF.sub.3 ", pp. 211-221, see p. 212, paragraph 3; p. 220, last paragraph cited in the application.
Solid State Ionics, vol. 13, 1984, Elsevier Science Publishers B. V. (Amsterdam, NL), A. Roos et al.: "Electronic Conductivity in La.sub.1-x Ba.sub.x F.sub.3-x Crystals", pp. 205-211, see abstract; p. 205, left-hand column, paragraphs, 1, 2; right-hand column, paragraph 3, 4.
Solid State Ionics, vol. 2, No. 3, Jun. 1981, North-Holland Publishing Company (Amsterdam, NL), K. E. D. Wapenaar et al.: "Conductivity Enhancement in Fluorite-Structured Ba.sub.1-x La.sub.x F.sub.2+x Solid Solutions", pp. 145-154, see abstract; p. 153, right-hand column, paragraph 2.
Solid State Ionics, vol. 6, No. 4, Jul. 1982, North-Holland Publishing Co. (Amsterdam, NL), P.O. Fedorov et al.: "Ionic Conductivity in the Single Crystal of Non-Stoichiometric Fluorite Phases M.sub.1-x, R.sub.x ; F.sub.2+x (M=Ca,Sr,Ba; R=Y, La-Lu)", pp. 331-335, see abstract.
Solid State Ionics, vol. 13, 1984, Elsevier Science Publishers B.V. (Amsterdam, NL), A. Roos et al.: "Ionic Conductivity Typsonite-Type Solid Solutions in Tysonite-Type Solid Solutions La.sub.1-x B.sub.x F.sub.3-x ", pp. 191-203, see abstract; p. 191, left-hand column, #1; p. 200, left-hand column, lines 5-8.
Solid State Ionics, vol. 9/10, part. 1, Dec. 1983, North-Holland Publishing Co. (Amsterdam, NL), J. A. Archer et al.: "Ionic Conductivity Studies of Heavily Rare Earth Doped Fluorites", pp. 505-510, see page 506, left-hand column, paragraph 2, 3; right-hand column, last paragraph, p. 508, table I.
Solid State Ionics, vol. 15, 1985, North-Holland (NL), H. Geiger et al.: "Ionic Conductivity Single Crystals of the Non-Stoichimetric Tysonite Phase La.sub.(1-x) Sr.sub.x F.sub.(3-x) (0x0, 14) ", pp. 155-158, see abstract.
C. R. Acad. Sc. Paris, vol. 276, #3, section C, Jan. 15, 1973, A. Pelloux et al., "Sur Les Proprietees de l'oxyfluorure de Lanthane Comme Electrolyte Solide", pp. 241-244, see page 241, paragrpah 1; p. 244, last paragraph.
Journal of the Electrochemical Society, vol. 129, #2, Feb. 1982, (Manchester, N.H., U.S.), H. S. Isaacs et al.: "Comparison of Materials as Oxygen Catalytic Electrodes on Zirconia Electrolyte", see pp. 436-443.
Chemical Abstracts, vol. 74, #14, Apr. 5, 1971 (Columbus, Ohio, U.S.), J. Vesely: "Crystals of Lanthanum Fluoride as the Functioning Layers of Fluoride Electrodes", see p. 508, abstract No. 70836d, & Chem. Listy 1971, 65(1), 86-90.
Journal of the Electrochemical Society, vol. 124, No. 2, Feb. 1977, T. Takahashi et al.: "Ionic Conductivity of Doped Cerium Trifluoride", pp. 280-284, see abstract; p. 280, left-hand column, paragraph 4; p. 281, Table I.

Affiliated with

Also associated with

Rating

Solid compositions for fuel cells, sensors and catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solid compositions for fuel cells, sensors and catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid compositions for fuel cells, sensors and catalysts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2357697