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121 条记录 (耗时 0.018 秒)

    Sulfur-containing mesoporous carbon, method of manufacturing the same, and fuel cell using the mesoporous carbon
    84.
    发明授权
    Sulfur-containing mesoporous carbon, method of manufacturing the same, and fuel cell using the mesoporous carbon 有权
    含硫介孔碳，其制造方法以及使用介孔碳的燃料电池

    公开(公告)号：US07867941B2

    公开(公告)日：2011-01-11

    申请号：US11966266

    申请日：2007-12-28

    申请人： Sang Hoon Joo ,  Chan-ho Pak ,  Hyuk Chang ,  Ji-man Kim ,  Hyung-ik Lee

    发明人： Sang Hoon Joo ,  Chan-ho Pak ,  Hyuk Chang ,  Ji-man Kim ,  Hyung-ik Lee

    IPC分类号： B01J21/18 ,  C01B31/00 ,  H01M4/64

    CPC分类号： B01J37/0018 ,  B01J21/18 ,  B01J35/1061 ,  B01J37/084 ,  C01B32/00 ,  H01M4/92 ,  H01M4/926 ,  H01M8/1011 ,  Y02E60/523 ,  Y02P70/56

    摘要： A sulfur-containing mesoporous carbon that has mesopores with an average diameter of 2 to 10 nm, a method of preparing the same, a catalyst containing the mesoporous carbon as a catalyst support, and a fuel cell using the catalyst in which the sulfur-containing mesoporous carbon has a good affinity for and adhesion to catalyst particles so as to strongly support the catalyst particles due to the sulfur atoms substituting for carbons in an OMC carbon skeleton structure. The growth of metal catalyst particles is prevented when heat-treating the metal catalyst particles. The catalyst using the sulfur-containing mesoporous carbon can be applied to a fuel cell to prevent a reduction in catalytic activity due to increased particle size by an accumulation of catalyst particles. The catalyst containing the sulfur-containing mesoporous carbon as a catalyst support can be used to manufacture a fuel cell having an improved performance.

    摘要翻译： 具有平均直径为2〜10nm的介孔的含硫中孔碳，其制备方法，含有介孔碳作为催化剂载体的催化剂，以及使用该催化剂的燃料电池，其中，含硫 中孔碳对催化剂颗粒具有良好的亲和性和粘附性，从而由于在OMC碳骨架结构中用硫原子代替碳而强烈地支持催化剂颗粒。 当对金属催化剂颗粒进行热处理时，可防止金属催化剂颗粒的生长。 使用含硫介孔碳的催化剂可以应用于燃料电池，以防止由于催化剂颗粒的积聚引起的粒度增加导致的催化活性降低。 含有含硫介孔碳作为催化剂载体的催化剂可用于制造具有改进性能的燃料电池。

    Supported catalyst and method of preparing the same
    85.
    发明授权
    Supported catalyst and method of preparing the same 有权
    负载催化剂及其制备方法

    公开(公告)号：US07867940B2

    公开(公告)日：2011-01-11

    申请号：US11334472

    申请日：2006-01-19

    申请人： Chan-ho Pak ,  Hyuk Chang ,  Dae-Jong Yoo ,  Seol ah Lee ,  Gongguan Sun ,  Luhua Jiang ,  Qin Xin

    发明人： Chan-ho Pak ,  Hyuk Chang ,  Dae-Jong Yoo ,  Seol ah Lee ,  Gongguan Sun ,  Luhua Jiang ,  Qin Xin

    IPC分类号： H01M4/02 ,  H01M4/88 ,  B01J31/00 ,  B01J21/18 ,  B01J23/00 ,  B01J23/40 ,  B01J23/74 ,  H01M4/36 ,  H01M4/92 ,  H01M4/90 ,  B01J37/00 ,  C08F4/02 ,  C08F4/60

    CPC分类号： B82Y30/00 ,  B01J21/18 ,  B01J21/185 ,  B01J23/42 ,  B01J37/035 ,  B01J37/16 ,  H01M4/9083 ,  H01M4/926 ,  H01M8/1011 ,  H01M2008/1095 ,  Y02E60/523 ,  Y02P70/56

    摘要： A method of preparing a supported catalyst includes dissolving a cation exchange polymer in alcohol to prepare a solution containing cation exchange polymer; mixing the cation exchange polymer containing solution with a catalytic metal precursor or a solution containing catalytic metal precursor; heating the mixture after adjusting its pH to a predetermined range; adding a reducing agent to the resultant and stirring the solution to reduce the catalytic metal precursor; mixing the resultant with a catalyst support; adding a precipitating agent to the resultant to form precipitates; and filtering and drying the precipitates. The method of preparing a supported catalyst can provide a highly dispersed supported catalyst containing catalytic metal particles with a reduced average size regardless of the type of catalyst support, which provides better catalytic activity than conventional catalysts at the same loading amount of catalytic metal.

    摘要翻译： 制备负载型催化剂的方法包括将阳离子交换聚合物溶解在醇中以制备含有阳离子交换聚合物的溶液; 将含阳离子交换聚合物的溶液与催化金属前体或含有催化金属前体的溶液混合; 将其pH调节至预定范围后加热混合物; 向所得物中加入还原剂并搅拌溶液以还原催化金属前体; 将所得物与催化剂载体混合; 向所得物中加入沉淀剂形成析出物; 并过滤并干燥沉淀物。 制备负载型催化剂的方法可以提供高分散的载体催化剂，其含有平均尺寸较小的催化金属颗粒，而不管催化剂载体的类型如何，这在催化金属的相同负载量下提供比常规催化剂更好的催化活性。

    Carbon nanotubes for fuel cells, method for manufacturing the same, and fuel cell using the same
    88.
    发明授权
    Carbon nanotubes for fuel cells, method for manufacturing the same, and fuel cell using the same 有权
    燃料电池用碳纳米管及其制造方法以及使用该碳纳米管的燃料电池

    公开(公告)号：US07585584B2

    公开(公告)日：2009-09-08

    申请号：US10601872

    申请日：2003-06-24

    申请人： Won-bong Choi ,  Jae-uk Chu ,  Chan-ho Pak ,  Hyuk Chang

    发明人： Won-bong Choi ,  Jae-uk Chu ,  Chan-ho Pak ,  Hyuk Chang

    IPC分类号： H01M4/00

    CPC分类号： H01M4/8605 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  H01M4/9083 ,  H01M4/926 ,  H01M2008/1095 ,  Y10S977/70 ,  Y10S977/701 ,  Y10S977/72 ,  Y10S977/743 ,  Y10S977/843 ,  Y10S977/847

    摘要： Carbon nanotubes for use in a fuel cell, a method for fabricating the same, and a fuel cell using the carbon nanotubes for its electrode are provided. The internal and external walls of the carbon nanotubes are doped with nano-sized metallic catalyst particles uniformly to a degree of 0.3-5 mg/cm2. The carbon nanotubes are grown over a carbon substrate using chemical vapor deposition or plasma enhanced chemical vapor deposition. Since the carbon nanotubes have a large specific surface area, and metallic catalyst particles are uniformly distributed over the internal and external walls thereof, the reaction efficiency in an electrode becomes maximal when the carbon nanotubes are used for the electrode of a fuel cell. The carbon nanotubes fabricated using the method can be applied to form a large electrode. The carbon nanotubes grown over the carbon substrate can be readily applied to an electrode of a fuel cell, providing economical advantages and simplifying the overall electrode manufacturing process. A fuel cell using as the carbon nanotubes for its electrode provides improved performance.

    摘要翻译： 提供了用于燃料电池的碳纳米管，其制造方法和使用该碳纳米管作为其电极的燃料电池。 碳纳米管的内壁和外壁均匀掺杂有纳米尺寸的金属催化剂颗粒至0.3-5mg / cm2的程度。 使用化学气相沉积或等离子体增强化学气相沉积在碳衬底上生长碳纳米管。 由于碳纳米管具有大的比表面积，并且金属催化剂颗粒均匀地分布在其内壁和外壁上，所以当将碳纳米管用于燃料电池的电极时，电极中的反应效率最大。 使用该方法制造的碳纳米管可以应用于形成大电极。 生长在碳基板上的碳纳米管可以容易地应用于燃料电池的电极，提供经济的优点并简化整个电极的制造过程。 使用作为其电极的碳纳米管的燃料电池提供改进的性能。

    HIERARCHICAL MESOPOROUS CARBON, METHOD OF MANUFACTURING THE SAME, AND FUEL CELL USING THE SAME
    89.
    发明申请
    HIERARCHICAL MESOPOROUS CARBON, METHOD OF MANUFACTURING THE SAME, AND FUEL CELL USING THE SAME 有权
    分层多孔碳，其制造方法和使用其的燃料电池

    公开(公告)号：US20090098442A1

    公开(公告)日：2009-04-16

    申请号：US12168284

    申请日：2008-07-07

    申请人： Chan-ho Pak ,  Hyuk Chang ,  Ji-man Kim

    发明人： Chan-ho Pak ,  Hyuk Chang ,  Ji-man Kim

    IPC分类号： B01J21/18 ,  C01B31/02 ,  H01M4/02

    CPC分类号： B01J21/18 ,  B01J29/0308 ,  B01J35/1066 ,  B01J37/0018 ,  C01B32/00 ,  H01M4/9016 ,  H01M4/9083 ,  H01M8/1011 ,  Y02E60/523 ,  Y02P70/56

    摘要： A hierarchical mesoporous carbon is provided in which a total volume of mesopores of the hierarchical mesoporous carbon is 80% or greater of a total volume of pores of the hierarchical mesoporous carbon; a volume of mesopores with a average diameter greater than 20 nm and no greater than 50 nm is 3% or greater of the total volume of the pores; and a volume of mesopores with a average diameter greater than 2 nm and no greater than 10 nm is 65% or greater of the total volume of the pores. The hierarchical mesoporous carbon, which also contains macropores, has an optimized mesoporous distribution characteristic, and has an increased total volume of pores, thereby having a significantly improved catalytic activity when used as a catalyst support. When such a supported catalyst including the hierarchical mesoporous carbon as a support is used in a fuel cell, supply of fuel and transporting of byproducts are facilitated.

    摘要翻译： 提供了分级介孔碳，其中分层介孔碳的介孔的总体积为分级介孔碳的总体积的80％或更大; 平均直径大于20nm且不大于50nm的介孔的体积为孔的总体积的3％或更大; 并且平均直径大于2nm且不大于10nm的体积的介孔为孔的总体积的65％或更大。 还含有大孔的层状中孔碳具有优化的介孔分布特征，并且具有增加的孔体积，从而当用作催化剂载体时具有显着改善的催化活性。 当在燃料电池中使用包含分层介孔碳作为载体的这种负载型催化剂时，燃料的供给和副产物的输送变得容易。