Methods of fabricating laser-induced graphene and compositions thereof

    公开(公告)号:US11161744B2

    公开(公告)日:2021-11-02

    申请号:US16347451

    申请日:2017-11-06

    IPC分类号: C01B32/184 H01S3/00

    摘要: Methods that expand the properties of laser-induced graphene (LIG) and the resulting LIG having the expanded properties. Methods of fabricating laser-induced graphene from materials, which range from natural, renewable precursors (such as cloth or paper) to high performance polymers (like Kevlar). With multiple lasing, however, highly conductive PEI-based LIG could be obtained using both multiple pass and defocus methods. The resulting laser-induced graphene can be used, inter alia, in electronic devices, as antifouling surfaces, in water treatment technology, in membranes, and in electronics on paper and food Such methods include fabrication of LIG in controlled atmospheres, such that, for example, superhydrophobic and superhydrophilic LIG surfaces can be obtained. Such methods further include fabricating laser-induced graphene by multiple lasing of carbon precursors. Such methods further include direct 3D printing of graphene materials from carbon precursors. Application of such LIG include oil/water separation, liquid or gas separations using polymer membranes, anti-icing, microsupercapacitors, supercapacitors, water splitting catalysts, sensors, and flexible electronics.

    LASER INDUCED GRAPHENE MATERIALS AND THEIR USE IN ELECTRONIC DEVICES
    3.
    发明申请
    LASER INDUCED GRAPHENE MATERIALS AND THEIR USE IN ELECTRONIC DEVICES 审中-公开
    激光诱导的石墨材料及其在电子设备中的应用

    公开(公告)号:US20170062821A1

    公开(公告)日:2017-03-02

    申请号:US15119516

    申请日:2015-02-17

    摘要: In some embodiments, the present disclosure pertains to methods of producing a graphene material by exposing a polymer to a laser source. In some embodiments, the exposing results in formation of a graphene from the polymer. In some embodiments, the methods of the present disclosure also include a step of separating the formed graphene from the polymer to form an isolated graphene. In some embodiments, the methods of the present disclosure also include a step of incorporating the graphene material or the isolated graphene into an electronic device, such as an energy storage device. In some embodiments, the graphene is utilized as at least one of an electrode, current collector or additive in the electronic device. Additional embodiments of the present disclosure pertain to the graphene materials, isolated graphenes, and electronic devices that are formed by the methods of the present disclosure.

    摘要翻译: 在一些实施方案中,本公开涉及通过将聚合物暴露于激光源来生产石墨烯材料的方法。 在一些实施方案中,曝光导致从聚合物形成石墨烯。 在一些实施方案中,本公开的方法还包括将形成的石墨烯与聚合物分离以形成分离的石墨烯的步骤。 在一些实施例中,本公开的方法还包括将石墨烯材料或分离的石墨烯结合到诸如能量存储装置的电子装置中的步骤。 在一些实施例中,石墨烯被用作电子设备中的电极,集电器或添加剂中的至少一个。 本公开的另外的实施方案涉及通过本公开的方法形成的石墨烯材料,分离的石墨烯和电子器件。