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    Method of surfacing metallic nanoparticles with carbon
    3.
    发明授权
    Method of surfacing metallic nanoparticles with carbon 有权
    用碳表面金属纳米粒子的方法

    公开(公告)号：US09278861B2

    公开(公告)日：2016-03-08

    申请号：US13512889

    申请日：2010-12-14

    Applicant: Ari Auvinen ,  Jorma Jokiniemi ,  Johanna Forsman ,  Pipsa Mattila ,  Unto Tapper

    Inventor： Ari Auvinen ,  Jorma Jokiniemi ,  Johanna Forsman ,  Pipsa Mattila ,  Unto Tapper

    IPC: C23C16/00 ,  C01B31/02 ,  B22F1/00 ,  B22F1/02 ,  B22F9/28 ,  B82Y30/00 ,  B82Y40/00 ,  B05D7/00

    CPC classification number: C01B31/02 ,  B22F1/0018 ,  B22F1/02 ,  B22F9/28 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/05 ,  C01B32/16 ,  C01B32/162

    Abstract: The invention relates to a method for the carbon coating of metallic nanoparticles. The metallic nanoparticles, which are produced using the metal-salt hydrogen-reduction method, can be coated with carbon by adding a hydrocarbon (for example, ethylene, ethane, or acetylene) to the hydrogen using in the synthesis. The carbon layer protects the metallic particles from oxidation, which greatly facilitates the handling and further processing of the particles. By altering the concentration of the hydrocarbon, it is possible, in addition, to influence the size of the metallic particles created, because the coating takes place simultaneously with the creation of the particles, thus stopping the growth process. A carbon coating at most two graphene layers thick behaves like a semiconductor. As a thicker layer, the coating is a conductor. If the hydrocarbon concentration is further increased, a metal-CNT composite material is formed in the process. The composite materials developed are in themselves suitable as the raw materials of, for example, metallic inks and sensor materials.

    Abstract translation: 本发明涉及金属纳米粒子的碳涂覆方法。 使用金属盐氢还原法制备的金属纳米颗粒可以通过在合成中向氢中加入烃（例如乙烯，乙烷或乙炔）来涂覆碳。 碳层保护金属颗粒不被氧化，这极大地促进了颗粒的处理和进一步加工。 通过改变烃的浓度，另外也可以影响所产生的金属颗粒的尺寸，因为涂层与颗粒的产生同时发生，从而停止生长过程。 最多两个石墨烯层的碳涂层厚度类似于半导体。 作为较厚的层，涂层是导体。 如果烃浓度进一步增加，则在该过程中形成金属-CN复合材料。 所开发的复合材料本身适合作为例如金属油墨和传感器材料的原料。

    Method of Surfacing Metallic Nanoparticles With Carbon
    4.
    发明申请
    Method of Surfacing Metallic Nanoparticles With Carbon 审中-公开
    用碳表面金属纳米颗粒的方法

    公开(公告)号：US20130009089A1

    公开(公告)日：2013-01-10

    申请号：US13512889

    申请日：2010-12-14

    Applicant: Ari Auvinen ,  Jorma Jokiniemi ,  Johanna Forsman ,  Pipsa Mattila ,  Unto Tapper

    Inventor： Ari Auvinen ,  Jorma Jokiniemi ,  Johanna Forsman ,  Pipsa Mattila ,  Unto Tapper

    IPC: H01F1/01 ,  H01B1/02 ,  B82Y40/00

    CPC classification number: C01B31/02 ,  B22F1/0018 ,  B22F1/02 ,  B22F9/28 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/05 ,  C01B32/16 ,  C01B32/162

    Abstract: The invention relates to a method for the carbon coating of metallic nanoparticles. The metallic nanoparticles, which are produced using the metal-salt hydrogen-reduction method, can be coated with carbon by adding a hydrocarbon (for example, ethylene, ethane, or acetylene) to the hydrogen using in the synthesis. The carbon layer protects the metallic particles from oxidation, which greatly facilitates the handling and further processing of the particles. By altering the concentration of the hydrocarbon, it is possible, in addition, to influence the size of the metallic particles created, because the coating takes place simultaneously with the creation of the particles, thus stopping the growth process. A carbon coating at most two graphene layers thick behaves like a semiconductor. As a thicker layer, the coating is a conductor. If the hydrocarbon concentration is further increased, a metal-CNT composite material is formed in the process. The composite materials developed are in themselves suitable as the raw materials of, for example, metallic inks and sensor materials.

    Abstract translation: 本发明涉及金属纳米粒子的碳涂覆方法。 使用金属盐氢还原法制备的金属纳米颗粒可以通过在合成中向氢中加入烃（例如乙烯，乙烷或乙炔）来涂覆碳。 碳层保护金属颗粒不被氧化，这极大地促进了颗粒的处理和进一步加工。 通过改变烃的浓度，另外也可以影响所产生的金属颗粒的尺寸，因为涂层与颗粒的产生同时发生，从而停止生长过程。 最多两个石墨烯层的碳涂层厚度类似于半导体。 作为较厚的层，涂层是导体。 如果烃浓度进一步增加，则在该过程中形成金属-CN复合材料。 所开发的复合材料本身适合作为例如金属油墨和传感器材料的原料。

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