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公开(公告)号：US20160332886A1
公开(公告)日：2016-11-17
申请号：US15109816
申请日：2014-01-17
发明人： Mingdong ZHANG , Linde ZHANG
IPC分类号： C01B31/04
CPC分类号： C01B31/043 , C01B32/194 , C01B32/23
摘要： A method for repairing a reduced graphene oxide, the method comprising the following steps: Dispersing the reduced graphene oxide into a solvent to obtain graphene dispersion liquid, adding a first Lewis acid and a compound containing a methyl or methylene group to obtain the first mixture, reacting the first mixture in a microwave environment of which power is 300˜900 w for 0.5˜2 hours, refluxing for 3˜5 hours; separating, purifying and drying to obtain the first crude product; adding the first crude product into a second Lewis acid, adding an aromatic hydrocarbon repairing agent to obtain the second mixture, reacting the second mixture to obtain a molten solid, separating and purifying same to obtain the second crude product; mixing the second crude product, a metal powder catalyst and a third Lewis acid to obtain the third mixture, this method can repair reduced graphene oxide effectively.
摘要翻译： 一种修复还原型石墨烯氧化物的方法，该方法包括以下步骤：将还原的石墨烯氧化物分散到溶剂中以获得石墨烯分散液，加入第一路易斯酸和含有甲基或亚甲基的化合物以获得第一混合物， 使第一混合物在功率为300〜900W的微波环境中反应0.5〜2小时，回流3〜5小时; 分离，纯化和干燥得到第一个粗产物; 将第一粗产物加入到第二路易斯酸中，加入芳族烃修复剂以获得第二混合物，使第二混合物反应获得熔融固体，分离和纯化，得到第二粗产物; 混合第二粗产物，金属粉末催化剂和第三路易斯酸得到第三混合物，该方法可有效地修复氧化还原石墨烯。
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公开(公告)号：US20160325999A1
公开(公告)日：2016-11-10
申请号：US15109817
申请日：2014-01-17
发明人： Mingdong ZHANG , Linde ZHANG
IPC分类号： C01B31/04
CPC分类号： C01B31/0446 , B82Y30/00 , B82Y40/00 , C01B32/182 , C01B32/184 , C01B32/192 , C01B32/196 , C09K11/65 , Y10S977/734 , Y10S977/774 , Y10S977/842
摘要： A method for preparing graphene quantum dots in large-scale, comprising: dispersing graphene oxide uniformly in the first solvent to obtain a first dispersion liquid, adding reducing agent into the first dispersion liquid and dispersing uniformly to give a mixed solution; treating the mixed solution for 10˜60 mins under microwave environment with the power being at 500˜800 W, then cooling and separating to obtain the solid as a crude product; mixing, one of the reducing polyhydroxy aldehyde or organic acid with the crude product, following by adding the Lewis acid to obtain a mixture, dispersing the mixture in a second solvent uniformly to obtain a second dispersion liquid; putting wherein the second dispersion liquid into microwave treatment for 0.2-1 hours with the microwave power being 500˜800 w, then stripping for 2˜3 hours under ultrasonic power of 120˜300 w, purifying to obtain the graphene quantum dots.
摘要翻译： 一种大规模制备石墨烯量子点的方法，包括：将氧化石墨烯均匀分散在第一溶剂中以获得第一分散液，向第一分散液中加入还原剂并均匀分散得到混合溶液; 在微波环境下处理混合溶液10〜60分钟，功率为500〜800W，然后冷却分离，得到固体为粗产物; 将还原性多羟基醛或有机酸与粗产物混合，然后加入路易斯酸得到混合物，将混合物均匀分散在第二溶剂中，得到第二分散液; 将第二分散液进行微波处理0.2-1小时，微波功率为500〜800w，然后在120〜300w的超声功率下剥离2〜3小时，进行纯化，得到石墨烯量子点。
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公开(公告)号：US20180029889A1
公开(公告)日：2018-02-01
申请号：US15730751
申请日：2017-10-12
发明人： Linde ZHANG , Mingdong ZHANG
IPC分类号： C01B31/02
CPC分类号： C01B32/182 , C01B32/184 , C01B32/192 , C01B32/198 , C01B32/20 , C01B2204/20
摘要： The invention relates to a preparation method of graphene using graphene oxide. The method consists of the following steps. (1). Preparation of graphene oxide-dispersant solution; (2). Reduction of graphene oxide; (3). 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 make the reaction more fast and complete, facilitating the achievement of large scale industrial production.
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公开(公告)号：US20170225149A1
公开(公告)日：2017-08-10
申请号：US15514532
申请日：2014-09-25
发明人： Mingdong ZHANG , Linde ZHANG
IPC分类号： B01J20/286 , B01D15/22 , G01N30/60 , B01D15/20
CPC分类号： B01J20/286 , B01D15/08 , B01D15/20 , B01D15/206 , B01D15/22 , B01J20/20 , B01J2220/58 , C01B32/194 , G01N1/405 , G01N30/60
摘要： A solid phase extraction column, preparation method therefor, and pre-processing method of chemical sample based on solid phase extraction column. The solid phase extraction column includes a separation column, and a solid phase extraction agent tilled within the separation column. The solid phase extraction agent is graphene or modified graphene. The solid phase extraction column is prepared by loading the solid phase extraction agent into the separation column, and vibrating to compact the solid phase extraction agent. The solid phase extraction column is used to pre-process a chemical sample to realize a highly effective separation effect. The problem of data distortion caused by being unable for a target component to be detected in a subsequent detection or being unable to detect a real value, is avoided.
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5.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
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
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6.发明申请A 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：US20160311688A1
公开(公告)日：2016-10-27
申请号：US15106842
申请日：2013-12-31
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。
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