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Title:
COPPER NANOPARTICLE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/164479
Kind Code:
A1
Abstract:
The present invention relates to a low-temperature sinterable copper particle material prepared using an electride and an organic copper compound and a preparation method therefor and, more particularly, to a copper nanoparticle which can be useful as a conductive copper ink material thanks to its small size and high dispersibility, and a method for preparing the copper nanoparticle by reducing an organic copper compound with an electride as a reducing agent. The present invention provides copper nanoparticles which can be suitably used as a conductive copper nanoink material because the copper nanoparticles show the restrained oxidation of the copper, have an average particle diameter of around 5 nm to cause the depression of melting point, are of high dispersibility, and allow the removal of the electride in a simple ultrasonication process. The prepared copper nanoparticles can be useful as an oxidation preventing protector or conductive copper ink material which is small in particle size and high in dispersibility.

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Inventors:
KIM SUNG-WNG (KR)
LEE KYU-HYOUNG (KR)
KIM YE-JI (KR)
PARK JONG-HO (KR)
LEE SEUNG-YONG (KR)
Application Number:
PCT/KR2018/002708
Publication Date:
September 13, 2018
Filing Date:
March 07, 2018
Export Citation:
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Assignee:
RESEARCH & BUSINESS FOUND SUNGKYUNKWAN UNIV (KR)
International Classes:
B22F9/24; B22F1/00; B22F9/30; C09D11/52
Foreign References:
JP2011074476A2011-04-14
KR20160126989A2016-11-02
KR100814295B12008-03-18
KR20090032839A2009-04-01
US20160361712A12016-12-15
Other References:
ZHANG ET AL.: "Computer-assisted Inverse Design of Inorganic Electrides", PHYSICAL REIVIEW X, vol. 7, no. 1, 14 February 2017 (2017-02-14), pages 1 - 11, XP055557866
Attorney, Agent or Firm:
KIM, In-cheol (KR)
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