Stock material or miscellaneous articles – Composite
Patent
1989-01-17
1991-02-26
Pianalto, Bernard
Stock material or miscellaneous articles
Composite
423 53, 423 62, 4235611, 4274301, 428698, 428704, 429195, 429199, 502215, 502219, 502220, B05D 118
Patent
active
049961080
ABSTRACT:
Compositions of the formula MX.sub.2 :Y, wherein MX.sub.2 is a layer type transition metal dichalcogenide, M is a metal selected from the group consisting of niobium, tantalum, molybdenum and tungsten, X is a chalcogen selected from the group consisting of sulfur and selenium and Y is a material located between layers of MX.sub.2. The compositions may be prepared by the steps of first forming a suspension of the MX.sub.2 in a body of water. A liquid which is immiscible with water is added to the suspension. The suspension and immiscible liquid are agitated together to form a temporary emulsion. The emulsion is allowed to rest until the water and the liquid separate with an interface therebetween. A sheet-like composition of MX.sub.2 :Y forms at the interface. Preferably, the MX.sub.2 is in exfoliated, singular molecular thickness layers suspended in the water.
REFERENCES:
patent: 4299892 (1981-11-01), Dines
patent: 4647386 (1987-03-01), Jamison
P. Joensen, R. F. Frindt and S. R. Morrison, Single Layer MoS.sub.2, Materials Research Bulletin, vol. 21, pp. 457-461, 1986.
M. A. Gee, R. F. Frindt, P. Joensen and S. R. Morrison, Inclusion Compounds of MoS.sub.2, Materials Research Bulletin, vol. 21, pp. 543-549, 1986.
K. Blodgett, Films Built by Depositing Successive Monomolecular Layers on a Solid Surface, American Chemical Society Journal, 57, pp. 1007-1022, 1935.
L. E. Scriven and C. V. Sternling, Marangoni Effects, Nature, 187, pp. 186-188, 1960.
P. D. Fleishauer, Fundamental Aspects of the Electronic Structure, Materials Properties and Lubrication Performance of Sputtered MoS.sub.2 Films, Thin Solid Films, 154, pp. 309-322, 1987.
D. Djemal, N. Muller, U. Lachish and D. Cahen, Photoelectrochemical Cells Using Polycrystalline and Thin MoS.sub.2 Electrodes, Solar Energy Materials, 5, pp. 403-416, 1981.
Divigalpitiya W. M. Ranjith
Frindt Robert F.
Morrison S. Roy
Pianalto Bernard
Simon Fraser University
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