利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

120 条记录 (耗时 0.027 秒)

    METHODS FOR MANUFACTURING BI-METALLIC CATALYSTS HAVING A CONTROLLED CRYSTAL FACE EXPOSURE
    1.
    发明申请
    METHODS FOR MANUFACTURING BI-METALLIC CATALYSTS HAVING A CONTROLLED CRYSTAL FACE EXPOSURE 失效
    用于制造具有受控晶体面暴露的双金属催化剂的方法

    公开(公告)号：US20080081017A1

    公开(公告)日：2008-04-03

    申请号：US11537462

    申请日：2006-09-29

    申请人： Zhenhua Zhou ,  Zhihua Wu ,  Cheng Zhang ,  Bing Zhou

    发明人： Zhenhua Zhou ,  Zhihua Wu ,  Cheng Zhang ,  Bing Zhou

    IPC分类号： C01B15/01

    CPC分类号： C01B15/029 ,  B01J23/44 ,  B01J35/0013 ,  B01J37/0203 ,  B01J37/0211 ,  B01J37/18

    摘要： Improved bimetallic nanocatalysts are manufactured using a control agent to produce nanoparticles having a controlled crystal face exposure. The bimetallic nanocatalyst particles are manufactured in a two-step process. In a first step, nanocatalyst particles are manufactured using the control agent and the primary metal atoms. The primary metal atoms and the control agent are reacted to form complexed metal atoms. The complexed metal atoms are then allowed or caused to form nanoparticles. The nanoparticles formed in the first step using the control agent have a desired crystal face exposure. In a second step, the secondary metal atoms are deposited on the surface of the primary metal nanoparticles. The secondary catalyst atoms maintain the same crystal face exposure as the primary metal nanoparticles.

    摘要翻译： 使用控制剂制备改进的双金属纳米催化剂以产生具有受控晶面曝光的纳米颗粒。 双金属纳米催化剂颗粒以两步法制备。 在第一步中，使用控制剂和主要金属原子制造纳米催化剂颗粒。 使主要金属原子和控制剂反应形成络合的金属原子。 然后允许或引起络合的金属原子形成纳米颗粒。 使用控制剂在第一步中形成的纳米颗粒具有所需的晶面曝光。 在第二步中，二次金属原子沉积在一次金属纳米粒子的表面上。 二次催化剂原子保持与主要金属纳米颗粒相同的晶面暴露。

    Methods for manufacturing bi-metallic catalysts having a controlled crystal face exposure
    2.
    发明授权
    Methods for manufacturing bi-metallic catalysts having a controlled crystal face exposure 失效
    具有受控晶面曝光的双金属催化剂的制造方法

    公开(公告)号：US07601668B2

    公开(公告)日：2009-10-13

    申请号：US11537462

    申请日：2006-09-29

    申请人： Zhenhua Zhou ,  Zhihua Wu ,  Cheng Zhang ,  Bing Zhou

    发明人： Zhenhua Zhou ,  Zhihua Wu ,  Cheng Zhang ,  Bing Zhou

    IPC分类号： B01J23/00 ,  B01J23/42 ,  B01J23/44 ,  C01B15/029

    CPC分类号： C01B15/029 ,  B01J23/44 ,  B01J35/0013 ,  B01J37/0203 ,  B01J37/0211 ,  B01J37/18

    摘要： Improved bi-metallic nanocatalysts are manufactured using a control agent to produce nanoparticles having a controlled crystal face exposure. The bi-metallic nanocatalyst particles are manufactured in a two-step process. In a first step, nanocatalyst particles are manufactured using the control agent and the primary metal atoms. The primary metal atoms and the control agent are reacted to form complexed metal atoms. The complexed metal atoms are then allowed or caused to form nanoparticles. The nanoparticles formed in the first step using the control agent have a desired crystal face exposure. In a second step, the secondary metal atoms are deposited on the surface of the primary metal nanoparticles. The secondary catalyst atoms maintain the same crystal face exposure as the primary metal nanoparticles.

    摘要翻译： 使用控制剂制备改进的双金属纳米催化剂以产生具有受控晶面曝光的纳米颗粒。 双金属纳米催化剂颗粒以两步法制备。 在第一步中，使用控制剂和主要金属原子制造纳米催化剂颗粒。 使主要金属原子和控制剂反应形成络合的金属原子。 然后允许或引起络合的金属原子形成纳米颗粒。 使用控制剂在第一步中形成的纳米颗粒具有所需的晶面曝光。 在第二步中，二次金属原子沉积在一次金属纳米粒子的表面上。 二次催化剂原子保持与主要金属纳米颗粒相同的晶面暴露。

    Preparation of a carbon nanomaterial using a reverse microemulsion
    3.
    发明授权
    Preparation of a carbon nanomaterial using a reverse microemulsion 失效
    使用反相微乳液制备碳纳米材料

    公开(公告)号：US08318122B2

    公开(公告)日：2012-11-27

    申请号：US12248993

    申请日：2008-10-10

    申请人： Cheng Zhang ,  Bing Zhou

    发明人： Cheng Zhang ,  Bing Zhou

    IPC分类号： C01B31/02 ,  B82B3/00

    CPC分类号： B82Y30/00 ,  C01B32/05

    摘要： Powdered, amorphous carbon nanomaterials are formed from a carbon precursor in reverse microemulsion that includes organic solvent, surfactant and water. Methods for manufacturing amorphous, powdered carbon nanomaterials generally include steps of (1) forming a reverse microemulsion including at least one non-polar solvent, at least one surfactant, and at least one polar solvent, (2) adding at least one carbon precursor substance to the reverse microemulsion, (3) reacting the at least one carbon precursor substance so as to form an intermediate carbon nanomaterial, (4) separating the intermediate amorphous carbon nanomaterial from the reverse microemulsion, and (5) heating the intermediate amorphous carbon nanomaterial for a period of time so as to yield an amorphous, powdered carbon nanomaterial. Amorphous, powdered carbon nanomaterials manufactured according to the present disclosure typically have a surface area of at least 500 m2/g, a graphitic content of at least 25%, and a conductivity of at least 150 S/m.

    摘要翻译： 粉末状无定形碳纳米材料由反相微乳液中的碳前体形成，其包括有机溶剂，表面活性剂和水。 制造无定形粉末状碳纳米材料的方法通常包括以下步骤：（1）形成包含至少一种非极性溶剂，至少一种表面活性剂和至少一种极性溶剂的反相微乳液，（2）加入至少一种碳前体物质 （3）使至少一种碳前体物质反应以形成中间碳纳米材料，（4）将中间无定形碳纳米材料与反相微乳液分离，（5）将中间无定形碳纳米材料加热至 一段时间以产生无定形的粉末状碳纳米材料。 根据本公开制造的无定形粉末碳纳米材料通常具有至少500m 2 / g的表面积，至少25％的石墨含量和至少150S / m的电导率。

    Hydrogen storage using porous carbon nanospheres
    5.
    发明授权
    Hydrogen storage using porous carbon nanospheres 失效
    使用多孔碳纳米球储氢

    公开(公告)号：US07670588B2

    公开(公告)日：2010-03-02

    申请号：US11850581

    申请日：2007-09-05

    申请人： Bing Zhou ,  Cheng Zhang

    发明人： Bing Zhou ,  Cheng Zhang

    IPC分类号： C01B3/00

    CPC分类号： C01B3/0021 ,  B82Y30/00 ,  F17C11/005 ,  Y02E60/325 ,  Y10S420/90 ,  Y10S977/70 ,  Y10S977/84 ,  Y10T29/49826 ,  Y10T428/2991

    摘要： Hydrogen is stored by adsorbing the hydrogen to a carbon nanomaterial that includes carbon nanospheres. The carbon nanospheres are multi-walled, hollow carbon nanostructures with a maximum diameter in a range from about 10 nm to about 200 nm. The nanospheres have an irregular outer surface and an aspect ratio of less than 3:1. The carbon nanospheres can store hydrogen in quantities of at least 1.0% by weight.

    摘要翻译： 通过将氢吸附到包括碳纳米球的碳纳米材料上来储存氢。 碳纳米球是具有最大直径在约10nm至约200nm范围内的多壁中空碳纳米结构。 纳米球具有不规则的外表面和小于3:1的纵横比。 碳纳米球可以以至少1.0重量％的量存储氢。

    CARBON NANOSTRUCTURES MANUFACTURED FROM CATALYTIC TEMPLATING NANOPARTICLES
    6.
    发明申请
    CARBON NANOSTRUCTURES MANUFACTURED FROM CATALYTIC TEMPLATING NANOPARTICLES 失效
    由催化态纳米粒子制备的碳纳米管

    公开(公告)号：US20070265162A1

    公开(公告)日：2007-11-15

    申请号：US11539042

    申请日：2006-10-05

    申请人： Cheng Zhang ,  Martin Fransson ,  Changkun Liu ,  Bing Zhou

    发明人： Cheng Zhang ,  Martin Fransson ,  Changkun Liu ,  Bing Zhou

    IPC分类号： D01F9/12 ,  B01J23/02

    CPC分类号： H01M4/96 ,  B01J21/18 ,  B01J21/185 ,  B01J23/40 ,  B01J23/74 ,  B01J37/084 ,  B82Y30/00 ,  C01B32/05 ,  H01M4/9083

    摘要： Methods for manufacturing carbon nanostructures include: 1) forming a plurality of catalytic templating particles using a plurality of dispersing agent molecules; 2) forming an intermediate carbon nanostructure by polymerizing a carbon precursor in the presence of the plurality of templating nanoparticles; 3) carbonizing the intermediate carbon nanostructure to form a composite nanostructure; and 4) removing the templating nanoparticles from the composite nanostructure to yield the carbon nanostructures. The carbon nanostructures are well-suited for use as a catalyst support. The carbon nanostructures exhibit high surface area, high porosity, and high graphitization. Carbon nanostructures according to the invention can be used as a substitute for more expensive and likely more fragile carbon nanotubes.

    摘要翻译： 制造碳纳米结构的方法包括：1）使用多个分散剂分子形成多个催化模板颗粒; 2）通过在多个模板纳米颗粒的存在下聚合碳前体形成中间碳纳米结构; 3）碳化中间碳纳米结构以形成复合纳米结构; 和4）从复合纳米结构中去除模板纳米颗粒以产生碳纳米结构。 碳纳米结构非常适合用作催化剂载体。 碳纳米结构表现出高的表面积，高孔隙率和高石墨化。 根据本发明的碳纳米结构可用作更昂贵且可能更脆弱的碳纳米管的替代物。

    Stable concentrated metal colloids and methods of making same
    7.
    发明申请
    Stable concentrated metal colloids and methods of making same 失效
    稳定的浓缩金属胶体及其制备方法

    公开(公告)号：US20070219084A1

    公开(公告)日：2007-09-20

    申请号：US11378877

    申请日：2006-03-17

    申请人： Sukesh Parasher ,  Cheng Zhang ,  Michael Rueter ,  Bing Zhou

    发明人： Sukesh Parasher ,  Cheng Zhang ,  Michael Rueter ,  Bing Zhou

    IPC分类号： B01J31/00 ,  B01F3/12 ,  B01F17/00

    CPC分类号： B01J35/0013 ,  B01J13/0043 ,  B01J23/40 ,  B01J37/18 ,  B82Y30/00

    摘要： Metal-containing colloids are manufactured by reacting a plurality of metal ions and a plurality of organic agent molecules to form metal complexes in a mixture having a pH greater than about 4.25. The metal complexes are reduced for at least 0.5 hour to form stable colloidal nanoparticles. The extended reduction time improves the stability of the colloidal particles as compared to shorter reduction times. The stability of the colloidal particles allows for colloids with higher concentrations of metal to be formed. The concentration of metal in the colloid is preferably at least about 150 ppm by weight.

    摘要翻译： 含金属胶体通过使多种金属离子和多种有机试剂分子反应，在pH大于约4.25的混合物中形成金属络合物来制造。 将金属络合物还原至少0.5小时以形成稳定的胶体纳米颗粒。 与较短的还原时间相比，延长的还原时间提高了胶体颗粒的稳定性。 胶体颗粒的稳定性允许形成具有较高浓度金属的胶体。 胶体中金属的浓度优选为至少约150ppm重量。

    CARBON NANOSTRUCTURES MANUFACTURED FROM CATALYTIC TEMPLATING NANOPARTICLES
    9.
    发明申请
    CARBON NANOSTRUCTURES MANUFACTURED FROM CATALYTIC TEMPLATING NANOPARTICLES 审中-公开
    由催化态纳米粒子制备的碳纳米管

    公开(公告)号：US20100125035A1

    公开(公告)日：2010-05-20

    申请号：US12693915

    申请日：2010-01-26

    申请人： Cheng Zhang ,  Martin Fransson ,  Changkun Liu ,  Bing Zhou

    发明人： Cheng Zhang ,  Martin Fransson ,  Changkun Liu ,  Bing Zhou

    IPC分类号： C01B31/04 ,  B01J21/18

    CPC分类号： H01M4/96 ,  B01J21/18 ,  B01J21/185 ,  B01J23/40 ,  B01J23/74 ,  B01J37/084 ,  B82Y30/00 ,  C01B32/05 ,  H01M4/9083

    摘要： Methods for manufacturing carbon nanostructures include: 1) forming a plurality of catalytic templating particles using a plurality of dispersing agent molecules; 2) forming an intermediate carbon nanostructure by polymerizing a carbon precursor in the presence of the plurality of templating nanoparticles; 3) carbonizing the intermediate carbon nanostructure to form a composite nanostructure; and 4) removing the templating nanoparticles from the composite nanostructure to yield the carbon nanostructures. The carbon nanostructures are well-suited for use as a catalyst support. The carbon nanostructures exhibit high surface area, high porosity, and high graphitization. Carbon nanostructures according to the invention can be used as a substitute for more expensive and likely more fragile carbon nanotubes.

    摘要翻译： 制造碳纳米结构的方法包括：1）使用多个分散剂分子形成多个催化模板颗粒; 2）通过在多个模板纳米颗粒的存在下聚合碳前体形成中间碳纳米结构; 3）碳化中间碳纳米结构以形成复合纳米结构; 和4）从复合纳米结构中去除模板纳米颗粒以产生碳纳米结构。 碳纳米结构非常适合用作催化剂载体。 碳纳米结构表现出高的表面积，高孔隙率和高石墨化。 根据本发明的碳纳米结构可用作更昂贵且可能更脆弱的碳纳米管的替代物。

    PREPARATION OF A CARBON NANOMATERIAL USING A REVERSE MICROEMULSION
    10.
    发明申请
    PREPARATION OF A CARBON NANOMATERIAL USING A REVERSE MICROEMULSION 失效
    使用反向微乳液制备碳纳米管

    公开(公告)号：US20100092370A1

    公开(公告)日：2010-04-15

    申请号：US12248993

    申请日：2008-10-10

    申请人： Cheng Zhang ,  Bing Zhou

    发明人： Cheng Zhang ,  Bing Zhou

    IPC分类号： C01B31/04

    CPC分类号： B82Y30/00 ,  C01B32/05

    摘要： Powdered, amorphous carbon nanomaterials are formed from a carbon precursor in reverse microemulsion that includes organic solvent, surfactant and water. Methods for manufacturing amorphous, powdered carbon nanomaterials generally include steps of (1) forming a reverse microemulsion including at least one non-polar solvent, at least one surfactant, and at least one polar solvent, (2) adding at least one carbon precursor substance to the reverse microemulsion, (3) reacting the at least one carbon precursor substance so as to form an intermediate carbon nanomaterial, (4) separating the intermediate amorphous carbon nanomaterial from the reverse microemulsion, and (5) heating the intermediate amorphous carbon nanomaterial for a period of time so as to yield an amorphous, powdered carbon nanomaterial. Amorphous, powdered carbon nanomaterials manufactured according to the present disclosure typically have a surface area of at least 500 m2/g, a graphitic content of at least 25%, and a conductivity of at least 150 S/m.

    摘要翻译： 粉末状无定形碳纳米材料由反相微乳液中的碳前体形成，其包括有机溶剂，表面活性剂和水。 制造无定形粉末状碳纳米材料的方法通常包括以下步骤：（1）形成包含至少一种非极性溶剂，至少一种表面活性剂和至少一种极性溶剂的反相微乳液，（2）加入至少一种碳前体物质 （3）使至少一种碳前体物质反应以形成中间碳纳米材料，（4）将中间无定形碳纳米材料与反相微乳液分离，（5）将中间无定形碳纳米材料加热至 一段时间以产生无定形的粉末状碳纳米材料。 根据本公开制造的无定形粉末碳纳米材料通常具有至少500m 2 / g的表面积，至少25％的石墨含量和至少150S / m的电导率。