一种超长纳米银线材料及其制备方法

    公开(公告)号:WO2023078320A1

    公开(公告)日:2023-05-11

    申请号:PCT/CN2022/129423

    申请日:2022-11-03

    发明人: 党蕊 郑晶

    摘要: 涉及一种超长纳米银线材料及其制备方法,制备方法包括以下步骤:步骤一、将还原性糖和聚乙烯吡咯烷酮加入到去离子水中,得到澄清溶液;步骤二、将所述澄清溶液与金属离子溶液混合,得到混合溶液A;步骤三、将所述混合溶液A与卤化物溶液混合,得到混合溶液B;步骤四、向所述混合溶液B中逐滴加入含银离子的溶液得到反应溶液,然后在110℃~130℃下反应14h~20h,得到絮状产物;步骤五、将所述絮状产物依次使用去离子水和无水乙醇进行沉降洗涤,得到超长纳米银线材料。所述制备方法在水溶液体系下进行,无需惰性气氛保护,是一种低成本、绿色环保、易于工业化生产制备超长纳米银线材料的新方法。

    銀ナノワイヤーの製造方法
    3.
    发明申请

    公开(公告)号:WO2022209613A1

    公开(公告)日:2022-10-06

    申请号:PCT/JP2022/009791

    申请日:2022-03-07

    摘要: 【課題】銀ナノワイヤーと銀ナノ粒子とを含む粗分散液から効率的に銀ナノ粒子を除去することが可能な銀ナノワイヤーの製造方法を提供する。 【解決手段】銀ナノワイヤーと銀ナノ粒子を含む粗分散液を準備する粗分散液準備工程と、再沈殿法により上記粗分散液中の銀ナノワイヤーを精製する再沈洗浄工程と、を含み、上記再沈洗浄工程が(a)粗分散液又は後記再分散液に沈降溶媒を加えることによって銀ナノワイヤーを含む沈殿物を沈降させる沈降工程、(b)沈殿物が沈殿することにより生じた、銀ナノ粒子の少なくとも一部を含む上澄み液を除去する上澄み除去工程、(c)残存する沈殿物に比抵抗値3.3MΩ・cm以上の水を添加することにより沈殿物を水に再分散させて再分散液を得る再分散工程、からなる一連の操作を複数回反復することを特徴とする銀ナノワイヤーの製造方法である。

    METHOD OF PREPARING SILVER NANOPARTICLES FOR USE AS INK

    公开(公告)号:WO2021246858A1

    公开(公告)日:2021-12-09

    申请号:PCT/MY2020/050181

    申请日:2020-11-30

    申请人: MIMOS BERHAD

    摘要: The present invention discloses a method of preparing silver nanoparticles colloidal solution to be used as conductive ink. The solution is prepared by mixing silver, water, surface coating agent and silver reducing agent into a silver colloidal mixture. The silver mixture is sonicated with ultrasonic waves using low temperature heating. Polar solvent is added to the mixture. The silver mixture is centrifuged which forms precipitate. The precipitate is grinded to obtain coated silver nanoparticles. The silver nanoparticles is processed into ink and inserted in an inkjet cartridge. The inkjet cartridge can be operated with a printer below 50°C. The overall process involves minimal heat. The surface coating agent is selected from the group consisting of carboxyl, carbonyl, carboxylate and acrylic-based polymer. A single layer of printed conductive pattern can be obtained by using the prepared ink.

    ENHANCED NANOENERGETIC METALS VIA IN SITU REDUCTION OF NATIVE OXIDE LAYER

    公开(公告)号:WO2023076055A1

    公开(公告)日:2023-05-04

    申请号:PCT/US2022/046826

    申请日:2022-10-17

    IPC分类号: B22F1/16 B22F1/054 B22F9/14

    摘要: Disclosed are methods for producing metallic nanoparticles that are: (1) nearly free of oxide; (2) coated with a passivating layer that prevents re-oxidation; (3) decomposes during combustion; and/or (4) improves combustion of the metal. Embodiments involve reduction or removal of native oxide on the surface of metal nanoparticles by treatment in hydrogen plasma at low pressure (e.g., glow discharge). In the alternative, some embodiments involve generating a mechanical blend of nanoparticle metals to remove or reduce native oxide on the surface of metal nanoparticles. After reduction or removal of native oxide, the resultant nanoparticle metal or nanoparticle metal blend can be coated to prevent re-oxidation. This can involve deposition of a fluorocarbon film on the nanoparticle metal or nanoparticle metal blend.