PROCESS FOR PRODUCING A METAL NANOPARTICLE COMPOSITION

WIPO Patent Application WO/2015/036959

A3

A method for producing a metal nanoparticle composition including: (a) providing an alloy that includes silver and aluminum; (b) subjecting the alloy to a first thermal treatment to form a thermally treated alloy; (c) cold working the thermally treated alloy to form strips or pellets comprising the alloy; (d) subjecting the strips or pellets to a second thermal treatment at a temperature less than 440°C to form thermally treated strips or pellets; (e) subjecting the thermally treated strips or pellets to a leaching agent effective to leach out a portion of the aluminum and form a metal nanoparticle composition comprising metal nanoparticles; and (f) washing, filtering, and then drying the metal nanoparticle composition.

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LEKHTMAN DMITRY (IL)
GARBAR ARKADY (US)
WONG WAH CHUNG (AU)

PCT/IB2014/064441

August 06, 2015

September 11, 2014

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CIMA NANOTECH ISRAEL LTD (IL)

B22F9/04; B22F1/054; H05K1/09

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CHEN, SJ ET AL.: "Synthesis and characterization of single-phase nanocrystalline Ag2Al particles.", TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA ., vol. 22, no. 1, January 2012 (2012-01-01), pages 135
SONG, T ET AL.: "Dealloying behavior of rapidly solidified Al-Ag alloys to prepare nanoporous Ag in inorganic and organic acidic media.", CRYSTENGCOMM., vol. 13, no. 23., December 2011 (2011-12-01), pages 7058 - 7067, XP055216689

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