公开(公告)号：US20140154165A1

公开(公告)日：2014-06-05

申请号：US13980715

申请日：2012-03-27

申请人： Wensheng Yang ,  Jie Sun ,  Haimei Liu ,  Xu Chen ,  Xue Duan

发明人： Wensheng Yang ,  Jie Sun ,  Haimei Liu ,  Xu Chen ,  Xue Duan

IPC分类号： C01B31/04

CPC分类号： C01B31/0446 ,  C01B32/192 ,  C01B32/22 ,  Y10S977/789

摘要： The present invention relates to a method for preparing graphene using the two-dimensional confined space between the layers of inorganic layered materials. Such method comprises the following steps: mix a soluble salt of a divalent metal ion M2+, a soluble salt of a trivalent metal ion M′3+, a soluble salt of a chain alkyl anion A− and a carbon source molecule C and dissolve them in deionized and CO2-eliminated water to prepare a mixed salt solution; mix the mixed salt solution with an alkali solution under nitrogen protection and subject them to reaction and crystallization under nitrogen, and filter the suspension obtained thereafter and wash the filter cake with deionized water until the pH of the filtrate is 7 to 7.5, and then dry the filter cake to obtain layered double hydroxides with an intercalated structure; under an inert atmosphere or a reducing atmosphere, calcinate the layered double hydroxides with an intercalated structure to provide a calcinated product; add the calcinated product into a hydrochloric acid solution for ultrasonic treatment, and separate the solution by centrifugation and wash the precipitate obtained by centrifugation with deionized water until the pH of the filtrate is 6.5 to 7 to obtain the graphene.

摘要翻译： 本发明涉及使用无机层状材料层之间的二维密闭空间来制备石墨烯的方法。 该方法包括以下步骤：将二价金属离子M2 +的可溶性盐，三价金属离子M'3 +的可溶性盐，链烷基阴离子A的可溶性盐和碳源分子C混合并溶解 在去离子水和二氧化碳消除的水中制备混合盐溶液; 在氮气保护下将混合盐溶液与碱溶液混合，并在氮气下进行反应和结晶，过滤后得到的悬浮液，用去离子水洗涤滤饼直到滤液的pH为7至7.5，然后干燥 滤饼得到具有插层结构的层状双氢氧化物; 在惰性气氛或还原气氛下，以层间结构煅烧层状双氢氧化物，得到煅烧产物; 将煅烧后的产物加入到盐酸溶液中进行超声波处理，离心分离溶液，用去离子水离心洗涤沉淀，直到滤液的pH值达到6.5〜7，得到石墨烯。

公开(公告)号：US08906337B2

公开(公告)日：2014-12-09

申请号：US13980715

申请日：2012-03-27

申请人： Wensheng Yang ,  Jie Sun ,  Haimei Liu ,  Xu Chen ,  Xue Duan

发明人： Wensheng Yang ,  Jie Sun ,  Haimei Liu ,  Xu Chen ,  Xue Duan

IPC分类号： C01B31/04

CPC分类号： C01B31/0446 ,  C01B32/192 ,  C01B32/22 ,  Y10S977/789

摘要： The present invention relates to a method for preparing graphene using the two-dimensional confined space between the layers of inorganic layered materials. Such method comprises the following steps: mix a soluble salt of a divalent metal ion M2+, a soluble salt of a trivalent metal ion M′3+, a soluble salt of a chain alkyl anion A− and a carbon source molecule C and dissolve them in deionized and CO2-eliminated water to prepare a mixed salt solution; mix the mixed salt solution with an alkali solution under nitrogen protection and subject them to reaction and crystallization under nitrogen, and filter the suspension obtained thereafter and wash the filter cake with deionized water until the pH of the filtrate is 7 to 7.5, and then dry the filter cake to obtain layered double hydroxides with an intercalated structure; under an inert atmosphere or a reducing atmosphere, calcinate the layered double hydroxides with an intercalated structure to provide a calcinated product; add the calcinated product into a hydrochloric acid solution for ultrasonic treatment, and separate the solution by centrifugation and wash the precipitate obtained by centrifugation with deionized water until the pH of the filtrate is 6.5 to 7 to obtain the graphene.

摘要翻译： 本发明涉及使用无机层状材料层之间的二维密闭空间来制备石墨烯的方法。 该方法包括以下步骤：将二价金属离子M2 +的可溶性盐，三价金属离子M'3 +的可溶性盐，链烷基阴离子A的可溶性盐和碳源分子C混合并溶解 在去离子水和二氧化碳消除的水中制备混合盐溶液; 在氮气保护下将混合盐溶液与碱溶液混合，并在氮气下进行反应和结晶，过滤后得到的悬浮液，用去离子水洗涤滤饼直到滤液的pH为7至7.5，然后干燥 滤饼得到具有插层结构的层状双氢氧化物; 在惰性气氛或还原气氛下，以层间结构煅烧层状双氢氧化物，得到煅烧产物; 将煅烧后的产物加入到盐酸溶液中进行超声波处理，离心分离溶液，用去离子水离心洗涤沉淀，直到滤液的pH值达到6.5〜7，得到石墨烯。

公开(公告)号：US08834982B2

公开(公告)日：2014-09-16

申请号：US13994487

申请日：2011-12-07

申请人： Wensheng Yang ,  Jie Sun ,  Xu Chen ,  Haimei Liu

发明人： Wensheng Yang ,  Jie Sun ,  Xu Chen ,  Haimei Liu

IPC分类号： B32B3/02 ,  C01B31/02 ,  B82Y40/00

CPC分类号： C01B31/0293 ,  B82Y30/00 ,  B82Y40/00 ,  C01B31/0206 ,  C01B32/15 ,  Y10T428/21

摘要： The invention relates to a carbon nanoring and a method for preparing the same. The carbon nanoring according to the present invention is composed of monolayered or multilayered coaxial carbon rings, wherein the carbon ring has a structure similar to that of a closed ring system formed by graphite sheet being rolled, and each of an axial dimension and a radial dimension of the carbon nanoring is nanoscale with the axial dimension being smaller than the radial dimension. The invention further provides a method for preparing the above carbon nanoring including calcinating in an inert atmosphere or a reducing atmosphere a layered double hydroxides obtained by intercalating a long-chain alkyl anion and a carbon source molecule, growing a carbon nanoring within a confined region between layers under the catalysis of the metal element in layers, and removing the metal and the metal oxide by dissolving in an acid to obtain the carbon nanoring. By using this method, the carbon nanoring can be effectively controlled in terms of the axial dimension, the radial dimension, and the number of layers of the carbon ring thereof. The carbon nanoring provided by the present invention has the nano-ring shaped structure and the excellent properties of carbon materials, as well as more edge carbons and dangling bonds, and thus it has broad application prospects in such field as nanodevices, energy storage and sensing.

摘要翻译： 本发明涉及一种碳纳米管及其制备方法。 根据本发明的碳纳米管由单层或多层同轴碳环组成，其中碳环的结构类似于由滚动的石墨片形成的闭环系统，其轴向尺寸和径向尺寸 的碳纳米尺寸是纳米级的，其轴向尺寸小于径向尺寸。 本发明还提供了一种制备上述碳纳米管的方法，包括在惰性气氛或还原气氛中煅烧通过插入长链烷基阴离子和碳源分子获得的层状双氢氧化物，在碳纳米管之间的限制区内生长碳纳米 在层内催化金属元素层，并通过溶解在酸中去除金属和金属氧化物以获得碳纳米。 通过使用该方法，可以根据其碳环的轴向尺寸，径向尺寸和层数有效地控制碳纳米化。 本发明提供的碳纳米管具有纳米环形结构和碳材料的优异性能，以及更多的边缘碳和悬挂键，因此在纳米器件，能量存储和感测领域具有广泛的应用前景 。

公开(公告)号：US20130273294A1

公开(公告)日：2013-10-17

申请号：US13994487

申请日：2011-12-07

申请人： Wensheng Yang ,  Jie Sun ,  Xu Chen ,  Haimei Liu

发明人： Wensheng Yang ,  Jie Sun ,  Xu Chen ,  Haimei Liu

IPC分类号： C01B31/02

CPC分类号： C01B31/0293 ,  B82Y30/00 ,  B82Y40/00 ,  C01B31/0206 ,  C01B32/15 ,  Y10T428/21

摘要： The invention relates to a carbon nanoring and a method for preparing the same. The carbon nanoring according to the present invention is composed of monolayered or multilayered coaxial carbon rings, wherein the carbon ring has a structure similar to that of a closed ring system formed by graphite sheet being rolled, and each of an axial dimension and a radial dimension of the carbon nanoring is nanoscale with the axial dimension being smaller than the radial dimension. The invention further provides a method for preparing the above carbon nanoring including calcinating in an inert atmosphere or a reducing atmosphere a layered double hydroxides obtained by intercalating a long-chain alkyl anion and a carbon source molecule, growing a carbon nanoring within a confined region between layers under the catalysis of the metal element in layers, and removing the metal and the metal oxide by dissolving in an acid to obtain the carbon nanoring. By using this method, the carbon nanoring can be effectively controlled in terms of the axial dimension, the radial dimension, and the number of layers of the carbon ring thereof. The carbon nanoring provided by the present invention has the nano-ring shaped structure and the excellent properties of carbon materials, as well as more edge carbons and dangling bonds, and thus it has broad application prospects in such field as nanodevices, energy storage and sensing.

摘要翻译： 本发明涉及一种碳纳米管及其制备方法。 根据本发明的碳纳米管由单层或多层同轴碳环组成，其中碳环的结构类似于由滚动的石墨片形成的闭环系统，其轴向尺寸和径向尺寸 的碳纳米尺寸是纳米级的，其轴向尺寸小于径向尺寸。 本发明还提供了一种制备上述碳纳米管的方法，包括在惰性气氛或还原气氛中煅烧通过嵌入长链烷基阴离子和碳源分子获得的层状双氢氧化物，在碳纳米管之间的限制区内生长碳纳米 在层内催化金属元素层，并通过溶解在酸中去除金属和金属氧化物以获得碳纳米。 通过使用该方法，可以根据其碳环的轴向尺寸，径向尺寸和层数有效地控制碳纳米化。 本发明提供的碳纳米管具有纳米环形结构和碳材料的优异性能，以及更多的边缘碳和悬挂键，因此在纳米器件，能量存储和感测领域具有广泛的应用前景 。

公开(公告)号：US09068084B2

公开(公告)日：2015-06-30

申请号：US13574171

申请日：2010-02-11

申请人： Wensheng Yang ,  Jinglun Liang ,  Jun Li

发明人： Wensheng Yang ,  Jinglun Liang ,  Jun Li

IPC分类号： C09K11/06 ,  C01B33/12 ,  C09C3/10 ,  C09C1/30 ,  C09K11/02 ,  C01B33/18 ,  B82Y30/00

CPC分类号： C09C1/30 ,  B82Y30/00 ,  C01B33/18 ,  C01P2004/04 ,  C01P2004/34 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/64 ,  C01P2004/84 ,  C09K11/02 ,  C09K11/06 ,  C09K2211/1096

摘要： Provided are silica nanoparticles doped with dyes having a negative charge by using cationic polyelectrolyte as templet and preparing method thereof. The nanoparticles have a core-shell structure, inner core comprises cationic polyelectrolyte aggregates, in which fluorescent dye having a negative charge and SiO2 are doped, and optional additive having a negative charge, the shell is consisted of SiO2, wherein the sum of negative charge carried by the additives and the fluorescent dye is less than that of positive charge carried by the polyelectrolyte aggregates. The preparing method comprises the following steps: preparing complex solution of polyelectrolyte and fluorescent dye; prehydrolysis of organosilicon source; coating with organosilicon source. The method can be applied to dope silica with various fluorescent dyes having a negative charge. Various dyes can be doped at the same time, the doping amount, and particle diameter and shape of the product can be controlled by the method. The nanoparticles are spherical, the particle diameter thereof is uniform, and colloid formed therefrom is stable.

摘要翻译： 本发明提供了通过使用阳离子聚电解质作为电极的掺杂有负电荷的染料的二氧化硅纳米粒子及其制备方法。 纳米颗粒具有核 - 壳结构，内核包括阳离子聚电解质聚集体，其中掺杂有负电荷和SiO 2的荧光染料和具有负电荷的任选的添加剂，壳由SiO 2组成，其中负电荷之和 由添加剂和荧光染料负载的聚合电解质聚合物的负电荷小于正电荷。 制备方法包括以下步骤：制备聚电解质和荧光染料的复合溶液; 有机硅源的预水解; 涂有有机硅源。 该方法可用于将二氧化硅与具有负电荷的各种荧光染料掺杂。 可以同时掺杂各种染料，通过该方法可以控制产品的掺杂量，粒径和形状。 纳米颗粒是球形的，其粒径是均匀的，由其形成的胶体是稳定的。

公开(公告)号：US20120292572A1

公开(公告)日：2012-11-22

申请号：US13574171

申请日：2010-02-11

申请人： Wensheng Yang ,  Jinglun Liang ,  Jun Li

发明人： Wensheng Yang ,  Jinglun Liang ,  Jun Li

IPC分类号： C09K11/06

CPC分类号： C09C1/30 ,  B82Y30/00 ,  C01B33/18 ,  C01P2004/04 ,  C01P2004/34 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/64 ,  C01P2004/84 ,  C09K11/02 ,  C09K11/06 ,  C09K2211/1096

摘要： Provided are silica nanoparticles doped with dyes having a negative charge by using cationic polyelectrolyte as templet and preparing method thereof. The nanoparticles have a core-shell structure, inner core comprises cationic polyelectrolyte aggregates, in which fluorescent dye having a negative charge and SiO2 are doped, and optional additive having a negative charge, the shell is consisted of SiO2, wherein the sum of negative charge carried by the additives and the fluorescent dye is less than that of positive charge carried by the polyelectrolyte aggregates. The preparing method comprises the following steps: preparing complex solution of polyelectrolyte and fluorescent dye; prehydrolysis of organosilicon source; coating with organosilicon source. The method can be applied to dope silica with various fluorescent dyes having a negative charge. Various dyes can be doped at the same time, the doping amount, and particle diameter and shape of the product can be controlled by the method. The nanoparticles are spherical, the particle diameter thereof is uniform, and colloid formed therefrom is stable.

摘要翻译： 本发明提供了通过使用阳离子聚电解质作为电极的掺杂有负电荷的染料的二氧化硅纳米粒子及其制备方法。 纳米颗粒具有核 - 壳结构，内核包括阳离子聚电解质聚集体，其中掺杂有负电荷和SiO 2的荧光染料和具有负电荷的任选的添加剂，壳由SiO 2组成，其中负电荷之和 由添加剂和荧光染料负载的聚合电解质聚合物的负电荷小于正电荷。 制备方法包括以下步骤：制备聚电解质和荧光染料的复合溶液; 有机硅源的预水解; 涂有有机硅源。 该方法可用于将二氧化硅与具有负电荷的各种荧光染料掺杂。 可以同时掺杂各种染料，通过该方法可以控制产品的掺杂量，粒径和形状。 纳米颗粒是球形的，其粒径是均匀的，由其形成的胶体是稳定的。