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    Functionalised graphene oxide
    5.
    发明授权
    Functionalised graphene oxide 有权
    官能化石墨烯氧化物

    公开(公告)号：US09156701B2

    公开(公告)日：2015-10-13

    申请号：US12735328

    申请日：2009-01-03

    申请人： Peter Ho ,  Lay-Lay Chua ,  Shuai Wang ,  Perq-Jon Chia ,  Ghim Siong Goh

    发明人： Peter Ho ,  Lay-Lay Chua ,  Shuai Wang ,  Perq-Jon Chia ,  Ghim Siong Goh

    IPC分类号： C01B31/04 ,  B82Y30/00 ,  B82Y40/00 ,  C09D5/24

    CPC分类号： C01B31/0476 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/192 ,  C01B32/194 ,  C01B32/23 ,  C01B2204/02 ,  C01B2204/28 ,  C01B2204/30 ,  C09D5/24

    摘要： A functionalised graphene oxide and a method of making a functionalized graphene oxide comprising: (i) oxidizing graphite to form graphite oxide wherein the graphene sheets which make up the graphite independently of each other have a basal plane fraction of carbon atoms in the sp2-hybridised state between 0.1 and 0.9, wherein the remainder fraction comprises sp3-hybridised carbon atoms which are bonded to oxygen groups selected from hydroxyl and/or epoxy and/or carboxylic acid; and (ii) exfoliating and in-situ functionalizing the graphite oxide surface with one or more functional groups such that fictionalization of the surface is effected at a concentration greater than one functional group per 100 carbon atoms and less than one functional group per six carbon atoms. The functionalized graphene oxide is dispersible at high concentrations in appropriate solvents without aggregating or precipitating over extended periods at room temperature.

    摘要翻译： 一种官能化石墨烯氧化物和制备官能化石墨烯氧化物的方法，包括：（i）氧化石墨以形成氧化石墨，其中组成石墨的石墨烯片彼此独立地具有sp2杂交中的碳原子的基础面部分 状态在0.1和0.9之间，其中剩余部分包含与选自羟基和/或环氧基和/或羧酸的氧基团键合的sp3杂化的碳原子; 和（ii）用一个或多个官能团对石墨氧化物表面进行去角质和原位官能化，使得表面的虚拟化以每100个碳原子大于一个官能团的浓度和每六个碳原子少于一个官能团 。 功能化石墨烯氧化物可以在适当的溶剂中以高浓度分散，而不会在室温下长时间聚集或沉淀。

    FUNCTIONALISED GRAPHENE OXIDE
    7.
    发明申请
    FUNCTIONALISED GRAPHENE OXIDE 有权
    功能性石墨氧化物

    公开(公告)号：US20110052813A1

    公开(公告)日：2011-03-03

    申请号：US12735328

    申请日：2009-01-03

    申请人： Peter Ho ,  Lay-Lay Chua ,  Shuai Wang ,  Perq-Jon Chia ,  Ghim Siong Goh

    发明人： Peter Ho ,  Lay-Lay Chua ,  Shuai Wang ,  Perq-Jon Chia ,  Ghim Siong Goh

    IPC分类号： C07C309/14 ,  B05D5/00

    CPC分类号： C01B31/0476 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/192 ,  C01B32/194 ,  C01B32/23 ,  C01B2204/02 ,  C01B2204/28 ,  C01B2204/30 ,  C09D5/24

    摘要： A functionalised graphene oxide and a method of making a functionalised graphene oxide comprising: (i) oxidizing graphite to form graphite oxide wherein the graphene sheets which make up the graphite independently of each other have a basal plane fraction of carbon atoms in the sp2-hybridised state between 0.1 and 0.9, wherein the remainder fraction comprises sp3-hybridised carbon atoms which are bonded to oxygen groups selected from hydroxyl and/or epoxy and/or carboxylic acid; and (ii) exfoliating and in-situ functionalizing the graphite oxide surface with one or more functional groups such that functionalisation of the surface is effected at a concentration greater than one functional group per 100 carbon atoms and less than one functional group per six carbon atoms. The functionalised graphene oxide is dispersible at high concentrations in appropriate solvents without aggregating or precipitating over extended periods at room temperature.

    摘要翻译： 一种功能化石墨烯氧化物和制备官能化石墨烯氧化物的方法，包括：（i）氧化石墨以形成氧化石墨，其中组成石墨的石墨烯片彼此独立地具有sp2杂交中的碳原子的基本面积分数 状态在0.1和0.9之间，其中剩余部分包含与选自羟基和/或环氧基和/或羧酸的氧基团键合的sp3杂化的碳原子; 和（ii）用一个或多个官能团去除和原位氧化氧化物表面官能化，使得表面的官能化以每100个碳原子大于一个官能团的浓度和每六个碳原子少于一个官能团 。 功能化石墨烯氧化物可以在适当的溶剂中以高浓度分散，而不会在室温下长时间聚集或沉淀。