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公开(公告)号：US09718692B2
公开(公告)日：2017-08-01
申请号：US14909012
申请日：2014-07-30
申请人： UNIVERSITÉ DE BORDEAUX , INSTITUT POLYTECHNIQUE DE BORDEAUX , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS
CPC分类号： C01B31/0469 , C01B32/19 , C01B32/225 , C01B2204/02 , C01B2204/04 , H01L51/5203 , H01L2251/301
摘要： The present invention relates to a process for exfoliating graphite in carbonaceous materials facilitated by a Diels-Alder reaction, and the applications of same, in particular for producing electronic or microelectronic components such as transparent conductive electrodes. The inventive method comprises a Diels-Alder reaction between a material containing graphite and an anthrone compound represented by formula (I), wherein X, R1, R2, R3 and R4 are as defined in the description, in an organic solvent, in the presence of a base, and subjected to sonication, ball-milling and/or high-shear mixing, at a temperature of between 15° C. and 65° C., to obtain the corresponding graphene Diels-Alder adduct.
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公开(公告)号：US09708190B2
公开(公告)日：2017-07-18
申请号：US14964742
申请日：2015-12-10
发明人： Wei-Hung Chiang , Yen-Sheng Li , Jia-Liang Liao
IPC分类号： C01B31/04
CPC分类号： C01B31/0469 , C01B32/19 , C01B32/23
摘要： A method for producing a modified graphene includes the steps of intercalating or inserting a mixture of intercalating agents in a spacing between interlayers of carbon substrates or between carbon substrates, whereby the binding force between the interlayers of the carbon substrates or between the carbon substrates is weakened; and then exfoliating the pretreated carbon substrates to form the modified graphene. With the environmental friendly purpose, the method according to the present invention is useful for reducing the total amount of a strong acid. Therefore, the amount of the generated oxygen-containing functional groups attached on the modified graphene is modulated to avoid defects and maintain a yield over 80%.
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公开(公告)号：US20150239741A1
公开(公告)日：2015-08-27
申请号：US13999397
申请日：2014-02-21
申请人： David Joseph Burton , Bor Z. Jang , Aruna Zhamu
发明人： David Joseph Burton , Bor Z. Jang , Aruna Zhamu
IPC分类号： C01B31/04 , C08G65/48 , C07B41/02 , C07B43/04 , C07B43/08 , C07B41/04 , C08G63/91 , C08F120/32 , C07D301/02 , C07B41/08
CPC分类号： C01B31/0469 , C01B32/19 , C01B32/23 , C07D301/02 , C08G65/321 , C08L71/02
摘要： The invention provides a method of producing a graphene material from a starting graphitic material. In an embodiment, the method comprises: (a) dispersing the starting graphitic material in a liquid medium to form a graphite suspension; and (b) introducing the graphite suspension into a hydrodynamic cavitation reactor that generates and collapses cavitation or bubbles in the liquid medium to exfoliate and separate graphene planes from the starting graphitic material for producing the graphene material. The process is fast (minutes as opposed to hours or days of conventional processes), environmentally benign, and highly scalable. The reactor can concurrently perform the functions of graphene production, chemical functionalization, dispersion, and mixing with a polymer to make a composite.
摘要翻译： 本发明提供从起始石墨材料生产石墨烯材料的方法。 在一个实施方案中，该方法包括：（a）将起始石墨材料分散在液体介质中以形成石墨悬浮液; 和（b）将石墨悬浮液引入到流体动力空化反应器中，该反应器在液体介质中产生和塌陷空化或气泡，以将石墨烯平面与用于生产石墨烯材料的起始石墨材料分离和分离。 这个过程是快速的（分钟，而不是常规过程的几天或几天），环境友好和高度可扩展。 反应器可以同时执行石墨烯生产，化学官能化，分散和与聚合物混合以制备复合材料的功能。
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4.发明授权Device designed for continuous production of graphene flakes by electrochemical method 有权设计用于通过电化学方法连续生产石墨烯薄片的设备公开(公告)号：US08920614B2
公开(公告)日：2014-12-30
申请号：US13719186
申请日：2012-12-18
发明人： Pai-Lu Wang , Chi-Wei Liang , Chuen-Ming Gee , Yi-Cheng Cheng , Ching-Jang Lin
摘要： Disclosed is a device designed for a continuous production of graphene flakes by an electrochemical method. The device consists of an electrochemical unit for generating graphene flakes by an electrochemical exfoliation; a filtration unit for separating the graphene flakes from an electrolyte solution; a guiding path connected to the electrochemical unit and transports the graphene flakes and the electrolyte solution into the filtration unit; a grading collection unit for accepting the separated graphene flakes from the filtration unit and separating the graphene flakes by size. The device can achieve the effect of producing high-quality graphene flakes in mass production electrochemically, continuously and quickly.
摘要翻译： 公开了一种设计用于通过电化学方法连续生产石墨烯薄片的装置。 该装置由用于通过电化学剥离产生石墨烯薄片的电化学单元组成; 用于将石墨烯薄片与电解质溶液分离的过滤单元; 连接到电化学单元并将石墨烯薄片和电解质溶液输送到过滤单元中的引导路径; 分级收集单元，用于接收来自过滤单元的分离的石墨烯薄片，并分离尺寸的石墨烯薄片。 该设备可以在电化学，连续，快速的大规模生产中实现生产高品质石墨烯薄片的效果。
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公开(公告)号：US09828290B2
公开(公告)日：2017-11-28
申请号：US15503171
申请日：2015-08-18
申请人： Garmor Inc.
CPC分类号： C04B14/026 , C01B31/043 , C01B31/0469 , C01B32/192 , C01B32/198 , C01B32/20 , C04B14/06 , C04B26/26 , C04B28/04 , C04B14/00 , C04B40/0021
摘要： A method of producing dispersed of high quality graphene/graphite oxides in a powder matrix to then be reacted to form a composite. Where the powders have similar hydrophobicity and the graphene/graphite oxides has minimal surface oxidation or minimal epoxy group and where the powders are sonically mixed.
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公开(公告)号：US20160244333A1
公开(公告)日：2016-08-25
申请号：US14544821
申请日：2015-02-24
申请人： Aruna Zhamu , Bor Z. Jang
发明人： Aruna Zhamu , Bor Z. Jang
CPC分类号： C01B31/0469 , C01B31/0423 , C01B32/19 , C01B32/225 , C25B1/00
摘要： An intercalated graphite compound composition, comprising a layered graphite with interlayer spaces or interstices and an intercalant residing in at least one of said interstices, wherein said intercalant comprises a carboxylic acid and an oxidant selected from Li2FeO4, Na2FeO4, K2FeO4, LixCoO4, NaxCoO4, KxCoO4, LixNiO4, NaxNiO4, KxNiO4, or a combination thereof. This compound can be produced in an environmentally benign process. The compound can be further treated to produce separate graphene sheets.
摘要翻译： 一种插层石墨化合物组合物，其包含层间石墨，具有层间空间或间隙，以及驻留在所述间隙中的至少一个中的插层剂，其中所述插入剂包含羧酸和选自Li 2 FeO 4，Na 2 FeO 4，K 2 FeO 4，Li x CoO 4，NaxCoO 4，K x CoO 4 ，LixNiO4，NaxNiO4，KxNiO4或其组合。 该化合物可以以环境友好的方法生产。 该化合物可以进一步处理以产生单独的石墨烯片。
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7.发明申请公开(公告)号：US20160194207A1
公开(公告)日：2016-07-07
申请号：US14909012
申请日：2014-07-30
申请人： UNIVERSITÉ DE BORDEAUX , INSTITUT POLYTECHNIQUE DE BORDEAUX , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS
CPC分类号： C01B31/0469 , C01B32/19 , C01B32/225 , C01B2204/02 , C01B2204/04 , H01L51/5203 , H01L2251/301
摘要： The present invention relates to a process for exfoliating graphite in carbonaceous materials facilitated by a Diels-Alder reaction, and the applications of same, in particular for producing electronic or microelectronic components such as transparent conductive electrodes. The inventive method comprises a Diels-Alder reaction between a material containing graphite and an anthrone compound represented by formula (I), wherein X, R1, R2, R3 and R4 are as defined in the description, in an organic solvent, in the presence of a base, and subjected to sonication, ball-milling and/or high-shear mixing, at a temperature of between 15° C. and 65° C., to obtain the corresponding graphene Diels-Alder adduct.
摘要翻译： 本发明涉及一种通过Diels-Alder反应促进碳质材料中石墨剥离的方法及其应用，特别是用于生产诸如透明导电电极的电子或微电子部件。 本发明的方法包括在含有石墨的材料和由式（I）表示的蒽酮化合物之间的Diels-Alder反应，其中X，R1，R2，R3和R4如说明书中所定义，在有机溶剂中，在存在下 的基底，并在15℃至65℃的温度下进行超声处理，球磨和/或高剪切混合，以获得相应的石墨烯狄尔斯 - 阿尔德加合物。
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公开(公告)号：US20130171055A1
公开(公告)日：2013-07-04
申请号：US13554127
申请日：2012-07-20
申请人： XIANG-MING HE , LI WANG , JIAN-JUN LI , JIAN-WEI GUO , WEN-TING SUN , JIAN-GUO REN
发明人： XIANG-MING HE , LI WANG , JIAN-JUN LI , JIAN-WEI GUO , WEN-TING SUN , JIAN-GUO REN
摘要： In the method for making graphene, an electrolyte solution is formed by dissolving an electrolyte lithium salt in an organic solvent. Lithium ions are separated out from the electrolyte lithium salt in the electrolyte solution. Metal lithium and graphite are disposed in the electrolyte solution, and the metal lithium and the graphite are in contact with each other. In the electrolyte solution, lithium ions and organic solvent molecules jointly insert between adjacent layers of the graphite to form a graphite intercalation compound. The graphene is peeled off from the graphite intercalation compound.
摘要翻译： 在制造石墨烯的方法中，通过将电解质锂盐溶解在有机溶剂中形成电解质溶液。 从电解液中的电解质锂盐中分离出锂离子。 金属锂和石墨配置在电解液中，金属锂和石墨彼此接触。 在电解液中，锂离子和有机溶剂分子在相邻的石墨层之间共同插入以形成石墨插层化合物。 石墨烯从石墨插层化合物上剥离出来。
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公开(公告)号：US20130001068A1
公开(公告)日：2013-01-03
申请号：US13573259
申请日：2012-09-06
申请人： Aruna Zhamu , Bor Z. Jang
发明人： Aruna Zhamu , Bor Z. Jang
CPC分类号： C01B31/0469 , B01J19/10 , B82Y30/00 , B82Y40/00 , C01B32/19 , C01B32/194 , C01B32/225
摘要： A combined production-functionalization process for producing a chemically functionalized nano graphene material from a pre-intercalated, oxidized, or halogenated graphite material, comprising: (A) Producing exfoliated graphite from the pre-intercalated, oxidized, or halogenated graphite material, wherein the graphite material is selected from the group consisting of natural graphite, artificial graphite, highly oriented pyrolytic graphite, carbon fiber, graphite fiber, carbon nano-fiber, graphitic nano-fiber, meso-carbon micro-bead, graphitized coke, and combinations thereof; (B) Dispersing the exfoliated graphite and an azide or bi-radical compound in a liquid medium to form a suspension; (C) Subjecting the suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between the nano graphene platelets and the azide or bi-radical compound to produce the functionalized nano graphene material.
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公开(公告)号：US20110017587A1
公开(公告)日：2011-01-27
申请号：US12460860
申请日：2009-07-27
申请人： Aruna Zhamu , Bor Z. Jang
发明人： Aruna Zhamu , Bor Z. Jang
IPC分类号： B01J19/10
CPC分类号： C01B31/0469 , B01J19/10 , B82Y30/00 , B82Y40/00 , C01B32/19 , C01B32/194 , C01B32/225
摘要： Provided in this invention is a process for producing chemically functionalized nano graphene materials, known as nano graphene platelets (NGPs), graphene nano sheets, or graphene nano ribbons. Subsequently, a polymer can be grafted to a functional group of the resulting functionalized NGPs. In one preferred embodiment, the process comprises (A) dispersing a pristine graphite material and an azide or bi-radical compound in a liquid medium comprising to form a suspension; and (B) subjecting the suspension to direct ultrasonication with to ultrasonic waves of a desired intensity or power level for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between the nano graphene platelets and the azide or bi-radical compound to produce the functionalized nano graphene material. Concurrent production and functionalization of NGPs directly from pristine graphitic materials can be achieved in one step and in the same reactor.
摘要翻译： 在本发明中提供了一种生产化学官能化的纳米石墨烯材料的方法，称为纳米石墨烯片（NGP），石墨烯纳米片或石墨烯纳米带。 随后，可以将聚合物接枝到得到的官能化NGP的官能团上。 在一个优选实施方案中，该方法包括（A）将原始石墨材料和叠氮化物或双自由基化合物分散在包含形成悬浮液的液体介质中; 和（B）使悬浮液对所需强度或功率水平的超声波进行超声波处理足够长的时间以产生纳米石墨烯血小板，并使纳米石墨烯血小板和叠氮化物或二氧化钛之间发生化学反应 以制备功能化的纳米石墨烯材料。 直接来自原始石墨材料的NGP的并行生产和功能化可以在一个步骤和同一个反应器中实现。
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