公开(公告)号：US20080182155A1

公开(公告)日：2008-07-31

申请号：US11897144

申请日：2007-08-28

申请人： Jae-young Choi ,  Chan-ho Pak ,  Seok-gwang Doo ,  Jeong-hee Lee ,  Young-hee Lee ,  Kay-hyeok An ,  Sung-jin Kim

发明人： Jae-young Choi ,  Chan-ho Pak ,  Seok-gwang Doo ,  Jeong-hee Lee ,  Young-hee Lee ,  Kay-hyeok An ,  Sung-jin Kim

IPC分类号： H01M4/02 ,  D01F9/12

CPC分类号： H01M4/8605 ,  B01J21/185 ,  B01J23/42 ,  B01J35/006 ,  B01J37/06 ,  B01J37/346 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/168 ,  H01M4/9008 ,  H01M4/9041 ,  H01M4/9083 ,  H01M8/086 ,  H01M2008/1095 ,  Y10S977/948

摘要： Carbon nanotubes have an R value of at least 1.3, where R is defined as the ratio (ID/IG) of an integral value of D band intensity (ID) to an integral value of G band intensity (IG) in the Raman spectrum. Such carbon nanotubes can be used to form a support catalyst with good catalyst activity because the surface defects on the carbon nanotubes promote improved catalyst distribution in that the support catalyst includes catalyst particles having a small mean particle size and a slight variation in particle size. Such a support catalyst has particularly useful properties when used as a catalyst layer for a fuel cell electrode.

摘要翻译： 碳纳米管具有至少1.3的R值，其中R被定义为D带强度（I）的积分值的比值（I / D / SUB> D ）到拉曼光谱中的G带强度（I> G ）的积分值。 这种碳纳米管可用于形成具有良好催化剂活性的载体催化剂，因为碳纳米管上的表面缺陷促进了催化剂分布的改善，因为载体催化剂包括具有小的平均粒径和微小粒度变化的催化剂颗粒。 当用作燃料电池电极的催化剂层时，这种载体催化剂具有特别有用的特性。

公开(公告)号：US20080063591A1

公开(公告)日：2008-03-13

申请号：US11852009

申请日：2007-09-07

申请人： Dong-min Im ,  Jeong-hee Lee ,  Yong-nam Ham ,  Chan-ho Pak

发明人： Dong-min Im ,  Jeong-hee Lee ,  Yong-nam Ham ,  Chan-ho Pak

IPC分类号： C01B31/02 ,  C01B31/00

CPC分类号： C04B38/062 ,  B01J21/18 ,  B01J23/755 ,  B01J32/00 ,  B01J35/1014 ,  B01J35/1061 ,  C04B2111/0081 ,  H01M4/133 ,  H01M4/587 ,  H01M4/9083 ,  Y10S977/70 ,  C04B35/524

摘要： Porous carbon materials and methods of manufacturing the same are provided. One method includes forming a carbon-metal oxide composite by heating a coordination polymer to form a carbon-metal oxide composite, and then removing the metal oxide from the carbon-metal oxide composite. The porous carbon material has an average pore diameter ranging from about 10 nm to about 100 nm, and a d002 ranging from about 3.35 to 3.50 Å.

摘要翻译： 提供了多孔碳材料及其制造方法。 一种方法包括通过加热配位聚合物形成碳 - 金属氧化物复合物，然后从碳 - 金属氧化物复合物中除去金属氧化物，形成碳 - 金属氧化物复合物。 多孔碳材料的平均孔径为约10nm至约100nm，d 002 002范围为约3.35至3.50。

公开(公告)号：US07229942B2

公开(公告)日：2007-06-12

申请号：US11075866

申请日：2005-03-10

申请人： Sang-hyuk Suh ,  Chan-ho Pak ,  Hae-kyoung Kim

发明人： Sang-hyuk Suh ,  Chan-ho Pak ,  Hae-kyoung Kim

IPC分类号： B01J31/06

CPC分类号： H01M4/92 ,  B01J31/08 ,  B01J31/28 ,  B01J2231/42 ,  B01J2231/52 ,  B01J2231/70 ,  B82Y30/00 ,  H01M4/926

摘要： The invention provides and a highly-dispersed supported catalyst that has a reduced average particle size of catalytic metal particles and is also supported by a porous support material. A method of preparing a supported catalyst that can reduce the average particle size of catalytic metal particles supported by a support material includes first mixing a charged support material with a solution containing a polymer electrolyte having a charge opposite to that of the support material to adsorb the polymer electrolyte on the support material. Next, the support material having the polymer electrolyte adsorbed thereon is mixed with a solution containing a catalytic metal precursor ion having a charge opposite to that of the polymer electrolyte to adsorb the catalytic metal precursor ion on the support material having the polymer electrolyte adsorbed on it. Finally, the catalytic metal precursor ion adsorbed on the support material having the polymer electrolyte adsorbed thereon is reduced to a catalytic metal in a reducing solution.

摘要翻译： 本发明提供了一种具有降低的催化金属颗粒的平均粒度的高度分散的负载型催化剂，并且还由多孔载体材料支撑。 制备能够降低由载体材料负载的催化金属颗粒的平均粒径的负载催化剂的方法包括首先将带电荷的载体材料与含有与载体材料相反的电荷的聚合物电解质的溶液混合以吸附 聚合物电解质在支撑材料上。 接着，将其上吸附有聚合物电解质的载体材料与含有与聚合物电解质相反的电荷的催化金属前体离子的溶液混合，以将催化金属前体离子吸附在吸附有聚合物电解质的载体材料上 。 最后，吸附在其上吸附有聚合物电解质的载体材料上的催化金属前体离子被还原为还原溶液中的催化金属。

公开(公告)号：US07132385B2

公开(公告)日：2006-11-07

申请号：US10948538

申请日：2004-09-24

申请人： Chan-ho Pak

发明人： Chan-ho Pak

IPC分类号： B01J21/18 ,  B01J23/00 ,  H01M4/86 ,  B22F9/00 ,  B22F1/00

CPC分类号： B82Y30/00 ,  B01J21/18 ,  B01J23/42 ,  B01J35/006 ,  B01J35/1019 ,  B01J35/1023 ,  B01J37/0205 ,  B01J37/16 ,  H01M4/885 ,  H01M4/921 ,  H01M4/926

摘要： The present invention is related to a high loading supported carbon catalyst having Pt or a Pt alloy supported into an electrically conductive carbon support. Specifically, in the carbon supported catalyst, a loading of the supported Pt or Pt alloy is in the range of about 50% to about 60% by weight, an average particle size is about 1 nm to about 3 nm, and a total specific surface area of the carbon supported catalyst is greater than about 200 m2/g. The carbon supported catalyst may improve the performance of a fuel cell because the catalytic metal particles have a small size and a high degree of dispersion. Also, a carbon supported catalyst having very fine catalyst particles uniformly dispersed may be prepared even at a high loading may be prepared.

摘要翻译： 本发明涉及一种负载在导电性碳载体中的具有Pt或Pt合金的高负载量的碳催化剂。 具体地说，在碳载体催化剂中，负载的Pt或Pt合金的负载量为约50％至约60％（重量），平均粒度为约1nm至约3nm，总比表面积 碳载体催化剂的面积大于约200m 2 / g。 碳载体催化剂可以改善燃料电池的性能，因为催化金属颗粒具有小尺寸和高分散度。 此外，即使在高负载下也可以制备具有均匀分散的非常细的催化剂颗粒的碳载体催化剂。

公开(公告)号：US20050215427A1

公开(公告)日：2005-09-29

申请号：US11075866

申请日：2005-03-10

申请人： Sang-hyuk Suh ,  Chan-ho Pak ,  Hae-kyoung Kim

发明人： Sang-hyuk Suh ,  Chan-ho Pak ,  Hae-kyoung Kim

IPC分类号： B01J37/02 ,  B01J31/00 ,  B01J31/08 ,  B01J31/16 ,  B01J31/28 ,  B01J32/00 ,  B01J37/16 ,  H01M4/88 ,  H01M4/92

CPC分类号： H01M4/92 ,  B01J31/08 ,  B01J31/28 ,  B01J2231/42 ,  B01J2231/52 ,  B01J2231/70 ,  B82Y30/00 ,  H01M4/926

摘要： The invention provides and a highly-dispersed supported catalyst that has a reduced average particle size of catalytic metal particles and is also supported by a porous support material. A method of preparing a supported catalyst that can reduce the average particle size of catalytic metal particles supported by a support material includes first mixing a charged support material with a solution containing a polymer electrolyte having a charge opposite to that of the support material to adsorb the polymer electrolyte on the support material. Next, the support material having the polymer electrolyte adsorbed thereon is mixed with a solution containing a catalytic metal precursor ion having a charge opposite to that of the polymer electrolyte to adsorb the catalytic metal precursor ion on the support material having the polymer electrolyte adsorbed on it. Finally, the catalytic metal precursor ion adsorbed on the support material having the polymer electrolyte adsorbed thereon is reduced to a catalytic metal in a reducing solution.

摘要翻译： 本发明提供了一种具有降低的催化金属颗粒的平均粒度的高度分散的负载型催化剂，并且还由多孔载体材料支撑。 制备能够降低由载体材料负载的催化金属颗粒的平均粒径的负载催化剂的方法包括首先将带电荷的载体材料与含有与载体材料相反的电荷的聚合物电解质的溶液混合以吸附 聚合物电解质在支撑材料上。 接着，将其上吸附有聚合物电解质的载体材料与含有与聚合物电解质相反的电荷的催化金属前体离子的溶液混合，以将催化金属前体离子吸附在吸附有聚合物电解质的载体材料上 。 最后，吸附在其上吸附有聚合物电解质的载体材料上的催化金属前体离子被还原为还原溶液中的催化金属。

公开(公告)号：US06265342B1

公开(公告)日：2001-07-24

申请号：US09519621

申请日：2000-03-06

申请人： Chang-bin Lim ,  Chan-ho Pak ,  Ju-hee Cho

发明人： Chang-bin Lim ,  Chan-ho Pak ,  Ju-hee Cho

IPC分类号： B01J2340

CPC分类号： B01J37/0248 ,  B01D53/944 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01J23/8966 ,  B01J37/0244

摘要： A catalyst for purifying exhaust gases from diesel engines with an improved purification efficiency for both nitrogen oxide and particulates in exhaust emissions is provided. The catalyst includes: (i) a first catalytic layer containing a carrier portion including iron (Fe)-doped modified zirconium dioxide, and a catalyst portion including a material selected from the group consisting of copper (Cu), copper oxide, and mixtures thereof, and (ii) a second catalytic layer containing a carrier portion including Cu-doped modified zirconium dioxide, a main catalyst portion including platinum (Pt) and tin (Sn), and a co-catalyst portion including copper oxide. The catalyst portion of the first catalytic layer may contain palladium (Pd) instead of Cu.

摘要翻译： 提供了一种用于净化来自柴油发动机的废气的催化剂，其具有改善的氮氧化物和排放物中的颗粒物的净化效率。 所述催化剂包括：（i）含有载体部分的第一催化剂层，所述载体部分包含铁（Fe）掺杂的改性二氧化锆，以及包含选自铜（Cu），氧化铜及其混合物的材料的催化剂部分 ，和（ii）含有包含Cu掺杂的改性二氧化锆的载体部分，包含铂（Pt）和锡（Sn）的主催化剂部分和包含氧化铜的助催化剂部分的第二催化剂层。 第一催化剂层的催化剂部分可以含有钯（Pd）代替Cu。