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    • 4. 发明专利
    • Metal nanoparticle with core-shell structure and method for producing the same
    • 具有核壳结构的金属纳米颗粒及其制造方法
    • JP2007224420A
    • 2007-09-06
    • JP2007040568
    • 2007-02-21
    • Samsung Electro-Mechanics Co Ltdサムソン エレクトロ−メカニックス カンパニーリミテッド.
    • SHIM IN-KEUNOH YOUNG-SOOJOUNG JAE-WOO
    • B22F1/02B22F9/24B82Y30/00B82Y40/00B82Y99/00C09D11/00C09D11/30C09D11/52H01B1/22H01B5/00H01B13/00
    • H05K1/097B01J13/02B22F1/0018B22F1/025B22F9/24B22F2999/00B82Y30/00H05K2201/0218Y10T428/12028B22F2207/15
    • PROBLEM TO BE SOLVED: To provide metal nanoparticles with a core-shell structure, and to provide a method for producing the same. SOLUTION: In each metal nanoparticle, copper is comprised as a core, a thin film layer surrounding the core is formed by a noble metal(s), the content of copper is increased while the oxidation of copper is prevented, so as to achieve cost effectiveness, a metal having excellent electric conductivity such as silver is comprised as the thin film layer, so as to form wiring having electric conductivity more excellent than that of copper, and the risk of silver migration is eliminated. Electrically conductive ink comprises the same. Further, a method where a metal nanoparticle 3 with a copper core 31-noble metal shell 33 which has not been able to form heretofore can be produced by reducing a reduction potential difference between copper and a noble metal(s) using a reducing agent, and a method where a metal nanoparticle is economically produced from a liquid state without requiring complicated equipment, severe conditions and troublesome air atmospheres are provided. Then, the metal nanoparticle 3 comprising a copper core, and a metal thin film layer surrounding the copper core and having a reduction potential higher than that of copper is provided. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供具有核 - 壳结构的金属纳米颗粒,并提供其制造方法。 解决方案:在每个金属纳米颗粒中,铜作为核心,围绕芯的薄膜层由贵金属形成,铜的含量增加,同时铜的氧化被阻止,因此 为了实现成本效益,将作为薄膜层的具有优异导电性的金属作为薄膜层,形成具有比铜更好的电导率的布线,并且消除了银迁移的风险。 导电油墨包括它。 此外,可以通过使用还原剂还原铜和贵金属之间的还原电位差来制造具有不能形成的铜芯31贵金属壳33的金属纳米颗粒3的方法, 以及其中金属纳米颗粒经济地从液态生产而不需要复杂的设备,苛刻的条件和麻烦的空气环境的方法。 然后,提供包含铜芯的金属纳米颗粒3和围绕铜芯的金属薄膜层,并且具有比铜更低的还原电位。 版权所有(C)2007,JPO&INPIT