Preparing nanosize platinum-titanium alloys

Details Preparing nanosize platinum-titanium alloys Preparing nanosize platinum-titanium alloys

2005-07-08

2008-08-26

King, Roy (Department: 1793)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or purifying free metal powder or producing or...

C075S335000, C075S351000, C204S157150, C204S157420, C261S024000, C261S126000, C261S151000, C429S047000, C502S101000, C502S104000, C977S775000

Reexamination Certificate

active

07416579

ABSTRACT:
Nanometer sized particles containing titanium and platinum are prepared by a sonochemical process. Compounds of the metals are dissolved, suspended, or diluted in a low vapor pressure liquid medium, preferably at a sub-ambient temperature. A reducing gas is bubbled through the liquid as it is subjected to cavitation to affect the reductive decomposition of the metal compounds. Titanium and platinum are co-precipitated in very small particles.

REFERENCES:
patent: 6589501 (2003-07-01), Moser et al.
patent: 7189279 (2007-03-01), Guillet
patent: 7318977 (2008-01-01), He et al.
patent: 2006/0257719 (2006-11-01), Merzougui et al.
patent: 2007/0113704 (2007-05-01), Carpenter et al.
patent: 2007/0259251 (2007-11-01), He et al.
patent: 2008/0042305 (2008-02-01), Halalay
T. Fujimoto et al. Sonochemical Preparation of Single-Dispersion Metal Nanoparticles from Metal Salts. Chem. Mater. 2001, 13, 1057-1060; Mar. 2, 2001.
T.R. Ralph and M.P. Hogarth. Catalysis for Low Temperature Fuel Cells: Part I: The Cathode Challenges. Platinum Metals Rev., 2002, 46(1), 3-14; Jan. 1, 2002.
R.A. Salkar et al. The Sonochemical preparation of amorphous silver nanoparticles. J. Mater. Chem., 1999, 9, 1333-1335.
T.J. Mason, J.P. Lorimer. Applied Sonochemistry: Uses of Power Ultrasound in Chemistry and Processing. Copyright 2002, Wiley-VCH Verlag, GmbH & Co. KgaA, ISBN 3-527-302050. pp. 78, 86.
Y. Mastai and A. Gedanken. Sonochemistry and Other Novel Methods Developed for the Synthesis of Nanoparticles Y. Mastai and A. Gedanken. In: C.N.R. Rao, A. Mueller and A.K. Cheetham, Editors, The Chemistry of Nanomaterials, Wiley-VCH, NY (Published online Jan. 28, 2005)) pp. 113-115.
W. Huang, et al. Selective synthesis of anatase and rutile via ultrasound irradiation. Chem. Commun., 2000, 1415-1416. Jul. 11, 2000.
P. Diodati, et al. Sonochemical production of a non-crystalline phase of palladium. Ultrason. Sonochem. 4 (1997) 45-48.
S.A. Cotton. Chemistry of Precious Metals. Springer-Verlag : Chapter 3, “Palladium and Platinum”, pp. 173,199.
K.S. Suslick. The Chemical Effects of Ultrasound. Scientific American, Feb. 1080, pp. 80-86.
L. H. Thompson and L. K. Doraiswamy. Sonochemistry: Science and Engineering. Ind. Eng. Chem. Res. 1999, 38, p. 1215-1249.
Q. Li et al. Sonochemical synthesis, structural and magnetic properties of air-stable Fe/Co alloy nanoparticles, New J. Chem, 2003, vol. 27, p. 1194-1199.
R. Oshima et al. Electron microscopy of noble metal alloy nanoparticles prepared by sonochemical methods, Nanostructured Materials, 1999, vol. 12, p. 111-114.
Kenneth S. Suslick, The Chemical Effects of Ultrasound, Scientific American, Feb. 1989, pp. 80-86.
Kenneth S. Suslick and Gareth J. Price, Applications of Ultrasound to Materials Chemistry, Annu. Rev. Mater. Sci. 1999, pp. 295-326.

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