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    GRAPHENE PRODUCTION PROCESS
    14.
    发明申请
    GRAPHENE PRODUCTION PROCESS 审中-公开
    石墨生产工艺

    公开(公告)号：US20170050854A1

    公开(公告)日：2017-02-23

    申请号：US15308297

    申请日：2015-05-01

    申请人： RMIT UNIVERSITY

    发明人： Michael CZAJKA ,  Robert SHANKS ,  Helmut HUGEL

    IPC分类号： C01B31/04

    CPC分类号： C01B32/22 ,  C01B32/182 ,  C01B32/184 ,  C01B32/19 ,  C01B32/192 ,  C01B32/225 ,  C01B2204/20

    摘要： A process for the preparation of reduced graphene comprising the steps of: providing an expandable graphite intercalated with oxygen containing groups; heating the expandable graphite under conditions sufficient to cause expansion of the expandable graphite and formation of an expanded graphite comprising oxygen containing groups; and contacting the expanded graphite with carbon monoxide to reduce at least a portion of the oxygen containing groups and form a reduced expanded graphite comprising an array of reduced graphene. The process of the invention enables large volumes of high quality graphene to be produced.

    摘要翻译： 一种制备还原型石墨烯的方法，包括以下步骤：提供插入含氧基团的可膨胀石墨; 在足以引起可膨胀石墨膨胀的条件下加热可膨胀石墨并形成包含含氧基团的膨胀石墨; 以及使膨胀的石墨与一氧化碳接触以减少至少一部分含氧基团，并形成包含还原石墨烯阵列的还原膨胀石墨。 本发明的方法能够生产大量高质量的石墨烯。

    Preparation method of graphene and graphene oxide based on mixed acid system
    15.
    发明授权
    Preparation method of graphene and graphene oxide based on mixed acid system 有权
    基于混合酸体系的石墨烯和氧化石墨烯的制备方法

    公开(公告)号：US09550679B2

    公开(公告)日：2017-01-24

    申请号：US15106842

    申请日：2013-12-31

    申请人： SHENZHEN CANTONNET ENERGY SERVICES CO., LTD.

    发明人： Linde Zhang ,  Mingdong Zhang

    IPC分类号： C01B31/04

    CPC分类号： C01B31/0476 ,  C01B32/192 ,  C01B32/23

    摘要： The present invention relates to a preparation method of graphene oxide based on mixed acid system. The method consists of the following steps. a. Preparation of graphite powder; b. Preparation of suspension liquid of first acid system; c. Preparation of second acid system; d. Preparation of graphene oxide. The invention also relates to a preparation method of graphene using graphene oxide obtained by method mentioned above. The method consists of the following steps. e. Preparation of graphene oxide-dispersant solution; f. Reduction of graphene oxide; g. Process of supersonic stripping; h. Obtaining graphene by separation and drying. The preparation methods of graphene oxide and graphene in our invention could reduce the dosage of strong acid as well as heat release of chemical reaction, and cause less corrosion to our equipments, which makes the reaction more effective and properties of graphene products better, facilitating the achievement of large scale industrial production.

    摘要翻译： 本发明涉及一种基于混合酸体系的氧化石墨烯的制备方法。 该方法由以下步骤组成。 一个。 石墨粉的制备; b。 第一酸系悬浮液的制备; C。 第二酸系的制备; d。 氧化石墨烯的制备。 本发明还涉及使用上述方法获得的使用石墨烯氧化物的石墨烯的制备方法。 该方法由以下步骤组成。 e。 石墨烯氧化物分散剂溶液的制备; F。 还原石墨烯氧化物; G。 超音速剥离工艺 H。 通过分离和干燥获得石墨烯。 我们发明中的氧化石墨烯和石墨烯的制备方法可以降低强酸的用量和化学反应的放热，对设备的腐蚀较少，使反应更有效，石墨烯产品的性能更好，便于 实现大规模工业化生产。

    Stable dispersions of single and multiple graphene layers in solution
    16.
    发明授权
    Stable dispersions of single and multiple graphene layers in solution 有权
    溶液中单层和多层石墨烯层的稳定分散体

    公开(公告)号：US09548494B2

    公开(公告)日：2017-01-17

    申请号：US14666692

    申请日：2015-03-24

    申请人： Belenos Clean Power Holding AG

    发明人： Reinhard Nesper ,  Tommy Kaspar

    IPC分类号： H01B1/04 ,  C01B31/02 ,  B82Y30/00 ,  H01M4/587 ,  B82Y40/00 ,  C01B31/04 ,  H01B13/32 ,  H01M10/052

    CPC分类号： H01M4/587 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/192 ,  C01B2204/02 ,  C01B2204/28 ,  C01B2204/30 ,  H01B1/04 ,  H01B13/32 ,  H01M10/052 ,  Y02E60/324 ,  Y02P70/54 ,  Y10T428/30

    摘要： A method for producing colloidal graphene dispersions comprises the steps of: (i) stirring graphite oxide in an aqueous dispersion medium to form a dispersion; (ii) determining if the dispersion is optically clear in a light microscope at 1000 fold magnification after 1 to 5 hours of stirring, and, if not clear, removing any undissolved impurities in the dispersion, in order to form a colloidal graphene oxide dispersion, or a multi-graphene oxide dispersion, that is optically clear in a light microscope at 1000 fold magnification; and (iii) thermally reducing the graphene oxide, or multi-graphene oxide, in dispersion in the aqueous dispersion medium at a temperature between 120° C. and 170° C. under pressure in order to ensure that the dispersion medium is not evaporated to form a stable colloidal graphene dispersion or a stable multi-graphene dispersion. Using the method used for the preparation of the starting dispersion a graphene or a multi-graphene dispersion is obtained that can be further processed to multi-graphene with larger inter-planar distances than graphite. Such dispersions and multi-graphenes are suitable materials in the manufacturing of rechargeable lithium ion batteries.

    摘要翻译： 制备胶体石墨烯分散体的方法包括以下步骤：（i）在水性分散介质中搅拌石墨氧化物以形成分散体; （ii）在1〜5小时的搅拌后，在光学显微镜中以1000倍放大率确定分散体是否光学透明，如果不清楚，则除去分散体中的任何未溶解的杂质，以形成胶态石墨烯氧化物分散体， 或多石墨烯氧化物分散体，其在1000倍放大倍数的光学显微镜中是光学透明的; 和（iii）在120℃和170℃之间的温度下在压力下将氧化石墨烯或氧化石墨烯在热分解中热分解，以确保分散介质不被蒸发 形成稳定的胶体石墨烯分散体或稳定的多石墨烯分散体。 使用用于制备起始分散体的方法，获得石墨烯或多石墨烯分散体，其可以进一步加工成具有比石墨更大的平面间距离的多石墨烯。 这种分散体和多石墨烯是可再生锂离子电池制造中的合适材料。

    A preparation method of graphene as well as graphene oxide based on anthracite
    18.
    发明申请
    A preparation method of graphene as well as graphene oxide based on anthracite 有权
    石墨烯的制备方法以及基于无烟煤的氧化石墨烯

    公开(公告)号：US20160347617A1

    公开(公告)日：2016-12-01

    申请号：US15106840

    申请日：2013-12-31

    申请人： SHENZHEN CANTONNET ENERGY SERVICES CO. , LTD.

    发明人： Linde ZHANG ,  Mingdong ZHANG

    IPC分类号： C01B31/04

    CPC分类号： C01B32/19 ,  C01B32/184 ,  C01B32/192 ,  C01B32/198 ,  C01B32/23

    摘要： The present invention relates to a preparation method of graphene oxide based on anthracite. The method consists of the following steps. a. Preparation of ultra-clean anthracite powder; b. Pretreatment of ultra-clean anthracite powder; c. Preparation of anthracite oxide dispersion; d. Preparation of graphene oxide colloid solution; e. Preparation of graphene oxide. The invention also relates to a preparation method of graphene using graphene oxide obtained by method mentioned before. The method consists of the following steps. f. Preparation of graphene oxide-dispersant solution; g. Reduction of graphene oxide; h. Obtaining graphene by suction filtration and drying process. Based on the preparation of anthracite, the invention could reduce production costs effectively comparing to traditional preparation methods of graphene and graphene oxide, and make the reaction more fast and complete, facilitating the achievement of large scale industrial productio

    摘要翻译： 本发明涉及一种基于无烟煤的氧化石墨烯的制备方法。 该方法由以下步骤组成。 一个。 超洁净无烟煤粉的制备; b。 超清洁无烟煤粉预处理; C。 无烟煤分散体的制备; d。 制备氧化石墨烯胶体溶液; e。 氧化石墨烯的制备。 本发明还涉及使用前述方法得到的使用石墨烯氧化物的石墨烯的制备方法。 该方法由以下步骤组成。 F。 石墨烯氧化物分散剂溶液的制备; G。 还原石墨烯氧化物; H。 通过抽滤和干燥过程获得石墨烯。 基于无烟煤的制备，与传统的石墨烯和氧化石墨烯的制备方法相比，本发明可以有效降低生产成本，使反应更加快速，完整，有利于实现大规模工业生产

    Cationic polymerization process for the synthesis of nano-structured polymers containing graphene
    20.
    发明授权
    Cationic polymerization process for the synthesis of nano-structured polymers containing graphene 有权
    用于合成含有石墨烯的纳米结构聚合物的阳离子聚合方法

    公开(公告)号：US09493594B2

    公开(公告)日：2016-11-15

    申请号：US14892787

    申请日：2014-05-20

    申请人： Versalis SPA

    发明人： Gino Goffredi ,  Aldo Longo ,  Olga Valentino ,  Riccardo Felisari ,  Alessandro Casalini

    IPC分类号： C01B31/04 ,  C08F212/08 ,  B82Y30/00 ,  B82Y40/00

    CPC分类号： C08F212/08 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/192 ,  C01B32/23 ,  C01B2204/04 ,  C01B2204/30 ,  C01B2204/32 ,  C08F2/44

    摘要： A cationic polymerization process for the synthesis of nano-structured polymers containing graphene which comprises reacting graphite oxide dispersed in a solvent by means of ultrasounds, with at least one vinyl monomer and at least one vinyl aromatic monomer, in the presence of at least one strong inorganic acid and suitable for activating a cationic polymerization, wherein: —said graphite oxide contains from 5% to 60% by weight of bound oxygen, —said vinyl monomer contains at least one carboxylic group wherein the ratio between oxygen bound to the oxide and carboxylic groups ranges from 1:10 to 10:1 in moles per mole, and—the ratio between said vinyl aromatic monomer and the sum of the quantity of graphite oxide and vinyl monomer containing carboxylic groups ranges from 50% to 99% by weight.

    摘要翻译： 一种用于合成含有石墨烯的纳米结构聚合物的阳离子聚合方法，其包括通过超声波将分散在溶剂中的氧化石墨与至少一种乙烯基单体和至少一种乙烯基芳族单体在至少一种强力 无机酸，适用于活化阳离子聚合，其中：硅石墨氧化物含有约5％至60％重量的结合氧，所述乙烯基单体含有至少一个羧基，其中与氧化物和羧基结合的氧之间的比例 基团的摩尔数为每摩尔1:10至10:1，并且所述乙烯基芳族单体与含有羧基的氧化石墨和乙烯基单体的量之和的比率为50重量％至99重量％。