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144 条记录 (耗时 0.035 秒)

    Purification of fullerenes
    43.
    发明授权
    Purification of fullerenes 失效
    富勒烯的纯化

    公开(公告)号：US5662876A

    公开(公告)日：1997-09-02

    申请号：US238640

    申请日：1994-05-05

    申请人： James M. Tour ,  Walter A. Scrivens ,  Peter V. Bedworth

    发明人： James M. Tour ,  Walter A. Scrivens ,  Peter V. Bedworth

    IPC分类号： C01B31/02 ,  C01B31/00

    CPC分类号： B82Y30/00 ,  B82Y40/00 ,  C01B31/0206 ,  C01B31/0213 ,  Y10S423/39 ,  Y10S977/845

    摘要： A low-cost and facile method of purifying fullerenes to obtain a preparation enriched in a fullerene of selected molecular weight using activated carbon involves adding a fullarena mixture to the top end of a column comprising activated carbon, passing a solvent in which the selected molecular weight fullerene is soluble through the column, and recovering a fraction enriched in the selected molecular weight fullerene from the bottom end of the column. In addition to activated carbon, the column may further comprise silica gel, diatomaceous earth, or other materials which aid in column packing and eluent flow. The invention also provides for preparation of gram quantities of pure C.sub.60 and C.sub.70 fullerenes after a single column pass.

    摘要翻译： 使用活性炭纯化富勒烯以获得富含选定分子量的富勒烯的制剂的低成本和容易的方法包括向包含活性炭的柱的顶端加入饱和混合物，通过其中所选择的分子量 富勒烯可通过塔溶解，并从塔的底端回收富集所选择的分子量富勒烯的馏分。 除了活性炭之外，该柱还可以包括硅胶，硅藻土或其它有助于柱填充和洗脱液流动的材料。 本发明还提供在单次通过后制备克数的纯C 60和C 70富勒烯。

    Lithium/HMPA-promoted synthesis of poly(phenylenes)
    45.
    发明授权
    Lithium/HMPA-promoted synthesis of poly(phenylenes) 失效
    锂/ HMPA促进的聚（亚苯基）

    公开(公告)号：US5484883A

    公开(公告)日：1996-01-16

    申请号：US291114

    申请日：1994-08-16

    申请人： James M. Tour ,  Eric B. Stephens

    发明人： James M. Tour ,  Eric B. Stephens

    IPC分类号： C08G61/10 ,  C08G79/00

    CPC分类号： C08G61/10 ,  C08G2261/312

    摘要： Poly(phenylene) that is substantially free of insoluble material is prepared by the polymerization of a lithioarylhalide compound in the presence of a polar aprotic compound such as hexamethylphosphoramide, N,N,N',N'-tetramethylethylenediamine or hexamethylphosphorous triamide. The preferred reaction involves the polymerization of 1-bromo-4-lithiobenzene in the presence of hexamethylphosphoramide. The 1-bromo-4-1ithiobenzene may be synthesized by reacting 1,4-dibromobenzene with t-butyllithium. These same types of reactions can also be used to synthesis other benzenoid polymers.

    摘要翻译： 通过在极性非质子化合物如六甲基磷酰胺，N，N，N'，N'-四甲基乙二胺或六甲基磷酸三酰胺的存在下聚合，制备基本上不含不溶物的聚（亚苯基）。 优选的反应涉及在六甲基磷酰胺存在下1-溴-4-亚硫基苯的聚合。 1-溴-4-硫代苯可以通过使1,4-二溴苯与叔丁基锂反应来合成。 这些相同类型的反应也可用于合成其它苯类聚合物。

    Silane compound for use in the synthesis of semiconducting polymers with perpendicular arranged cores
    46.
    发明授权
    Silane compound for use in the synthesis of semiconducting polymers with perpendicular arranged cores 失效
    用于合成具有垂直排列芯的半导体聚合物的硅烷化合物

    公开(公告)号：US5059695A

    公开(公告)日：1991-10-22

    申请号：US492543

    申请日：1990-03-12

    申请人： James M. Tour ,  Ruilian Wu ,  Jeffry S. Schumm

    发明人： James M. Tour ,  Ruilian Wu ,  Jeffry S. Schumm

    IPC分类号： C07F7/12 ,  C07F7/08

    CPC分类号： C07F7/0816

    摘要： The stereochemical structure necessary for preparation of perpendicularly arranged cores is provided by a compound of the formula ##STR1## wherein X is a reactive group through which polymeric subunits can be bonded to the compound. In particular, X is advantageously Br. This compound can be synthesized by the reaction of tetrakis(3'-trimethylsilyl-2'-propynyl)silane with zirconocene dichloride and n-butyllithium and adding sulfur monochloride to the reaction product. This produces an adduct in which X is SiMe.sub.3. This adduct may be converted to the bromo compound by reaction with bromine. The tetrakis(3'-trimethylsilyl-2-propynyl)silane may be prepared by forming a magnesium Grignard reagent from 3-bromo-1-trimethylsilylpropyne and reacting the Grignard reagent with silicon tetrachloride.

    摘要翻译： 用于制备垂直排列的核心所需的立体化学结构由下式化合物提供：其中X是可与聚合物亚单元键合的反应性基团。 特别地，X优选为Br。 该化合物可以通过四（3'-三甲基甲硅烷基-2'-丙炔基）硅烷与二氯化二茂锆和正丁基锂的反应合成，并向反应产物中加入一氯化硫。 这产生其中X是SiMe 3的加合物。 该加成物可以通过与溴反应转化成溴化合物。 四（3'-三甲基甲硅烷基-2-丙炔基）硅烷可以通过从3-溴-1-三甲基甲硅烷基丙炔形成镁格氏试剂并使格利雅试剂与四氯化硅反应来制备。

    LASER INDUCED GRAPHENE HYBRID MATERIALS FOR ELECTRONIC DEVICES
    48.
    发明申请
    LASER INDUCED GRAPHENE HYBRID MATERIALS FOR ELECTRONIC DEVICES 审中-公开

    公开(公告)号：US20190088420A1

    公开(公告)日：2019-03-21

    申请号：US15528320

    申请日：2015-11-27

    申请人： James M. Tour ,  Lei Li ,  Zhiwei Peng ,  Jibo Zhang

    发明人： James M. Tour ,  Lei Li ,  Zhiwei Peng ,  Jibo Zhang

    IPC分类号： H01G11/36 ,  C01B32/184 ,  C01B32/194 ,  H01M4/587 ,  H01M4/62

    摘要： In some embodiments, the present disclosure pertains to methods of producing a graphene hybrid material by exposing a graphene precursor material to a laser source to form a laser-induced graphene, where the laser-induced graphene is derived from the graphene precursor material. The methods of the present disclosure also include a step of associating a pseudocapacitive material (e.g., a conducting polymer or a metal oxide) with the laser-induced graphene to form the graphene hybrid material. The formed graphene hybrid material can become embedded with or separated from the graphene precursor material. The graphene hybrid materials can also be utilized as components of an electronic device, such as electrodes in a microsupercapacitor. Additional embodiments of the present disclosure pertain to the aforementioned graphene hybrid materials and electronic devices.

    Hydrated porous materials for selective CO2 capture
    49.
    发明授权
    Hydrated porous materials for selective CO2 capture 有权

    公开(公告)号：US10232343B2

    公开(公告)日：2019-03-19

    申请号：US15640765

    申请日：2017-07-03

    申请人： James M. Tour ,  Almaz S. Jalilov

    发明人： James M. Tour ,  Almaz S. Jalilov

    IPC分类号： B01D53/02 ,  B01J20/20 ,  B01D53/62 ,  B01J20/28 ,  B01J20/30 ,  C10L3/10

    摘要： In some embodiments, the present disclosure pertains to methods of capturing CO2 from an environment by hydrating a porous material with water molecules to the extent thereby to define a preselected region of a plurality of hydrated pores and yet to the extent to allow the preselected region of a plurality of pores of the porous material to uptake gas molecules; positioning the porous material within a CO2 associated environment; and capturing CO2 by the hydrated porous material. In some embodiments, the pore volume of the hydrated porous material includes between 90% and 20% of the pre-hydrated pore volume to provide unhydrated pore volume within the porous material for enhanced selective uptake of CO2 in the CO2 associated environment. In some embodiments, the step of capturing includes forming CO2-hydrates within the pores of the porous material, where the CO2.nH2O ratio is n