公开(公告)号：US20120028165A1

公开(公告)日：2012-02-02

申请号：US13185807

申请日：2011-07-19

申请人： Kang-hee LEE ,  Chan-ho Pak ,  Kyo-sung Park ,  Seon-ah Jin ,  Kyung-jung Kwon ,  Dae-jong Yoo

发明人： Kang-hee LEE ,  Chan-ho Pak ,  Kyo-sung Park ,  Seon-ah Jin ,  Kyung-jung Kwon ,  Dae-jong Yoo

IPC分类号： H01M4/90 ,  B01J27/20 ,  B82Y30/00

CPC分类号： H01M4/8652 ,  B82Y30/00 ,  H01M4/90 ,  Y02E60/50 ,  Y10S977/948

摘要： A composite including a metal having oxygen-reducing activity, nitrogen and carbon, the composite comprising polyhedral particles, an electrode catalyst including the composite, a method of preparing the composite, and a fuel cell using the composite.

摘要翻译： 包括具有降低氧还原活性的金属，氮和碳的复合材料，包含多面体颗粒的复合材料，包括复合材料的电极催化剂，制备复合材料的方法和使用该复合材料的燃料电池。

公开(公告)号：US08048586B2

公开(公告)日：2011-11-01

申请号：US11928864

申请日：2007-10-30

申请人： Jae-yong Lee ,  Kyoung-hwan Choi ,  Chan-ho Pak

发明人： Jae-yong Lee ,  Kyoung-hwan Choi ,  Chan-ho Pak

IPC分类号： H01M8/04 ,  H01M2/14

CPC分类号： H01M8/0228 ,  H01M8/0206 ,  H01M8/0221 ,  H01M8/0254 ,  H01M8/1007

摘要： A fuel cell stack induces smooth current collection and liquid or gas flow without using a heavy bipolar plate. The fuel cell stack includes: a membrane and electrode assembly (MEA) in which an electrolyte membrane is disposed between a cathode electrode and an anode electrode; a current collector disposed in the MEA to form an electrical path with an adjacent MEA; and a non-conductive separation plate disposed between the MEA and the adjacent MEA, the non-conductive separation plate forming flow channels to supply a liquid or gas to the cathode electrode and the anode electrode. A fuel cell stack structure having the above structure is simple and lightweight as the MEA includes a thin and lightweight non-conductive polymer separation plate and a current collector to connect adjacent MEAs.

摘要翻译： 燃料电池堆引起平滑的电流收集和液体或气体流动，而不使用重的双极板。 燃料电池堆包括：膜和电极组件（MEA），其中电解质膜设置在阴极电极和阳极电极之间; 设置在MEA中以形成具有相邻MEA的电路径的集电器; 以及设置在MEA和相邻的MEA之间的非导电分隔板，所述非导电分离板形成流路以向液体或气体供给阴极电极和阳极电极。 具有上述结构的燃料电池堆结构简单且重量轻，因为MEA包括薄而轻的非导电聚合物分离板和用于连接相邻MEA的集电器。

公开(公告)号：US20110177425A1

公开(公告)日：2011-07-21

申请号：US12962862

申请日：2010-12-08

申请人： Dae-jong Yoo ,  Kyung-jung Kwon ,  Chan-ho Pak ,  Victor Roev ,  Kang-hee Lee ,  Seon-ah Jin

发明人： Dae-jong Yoo ,  Kyung-jung Kwon ,  Chan-ho Pak ,  Victor Roev ,  Kang-hee Lee ,  Seon-ah Jin

IPC分类号： H01M8/10 ,  H01M4/92 ,  H01M4/88

CPC分类号： H01M4/921 ,  H01M4/923 ,  H01M4/926 ,  H01M2004/8689

摘要： Electrode catalysts for fuel cells, a method of manufacturing the same, a membrane electrode assembly (MEA) including the same, and a fuel cell including the MEA are provided. The electrode catalysts include a first catalyst alloy containing palladium (Pd), cobalt (Co), and phosphorus (P), a second catalyst alloy containing palladium (Pd) and phosphorus (P), and a carbon-based support to support the catalysts.

摘要翻译： 提供了用于燃料电池的电极催化剂，其制造方法，包括该电极催化剂的膜电极组件（MEA）和包括MEA的燃料电池。 电极催化剂包括含有钯（Pd），钴（Co）和磷（P）的第一催化剂合金，含有钯（Pd）和磷（P）的第二催化剂合金，以及用于负载催化剂的碳基载体 。

公开(公告)号：US07854913B2

公开(公告)日：2010-12-21

申请号：US11443160

申请日：2006-05-31

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： B01J19/08 ,  H01M8/00

CPC分类号： H01M4/926 ,  B82Y30/00 ,  C01B32/00

摘要： A mesoporous carbon is prepared by mixing a carbon precursor, an acid, and a solvent to obtain a carbon precursor mixture; impregnating an ordered mesoporous silica (OMS) with the carbon precursor mixture; carbonizing the impregnated OMS at 800 to 1300° C. by irradiating microwave energy with a power of 100 to 2000 W thereon to form an OMS-carbon composite; and removing the mesoporous silica from the OMS-carbon composite. The method of preparing a mesoporous carbon can significantly reduce a carbonization time by carbonizing a carbon precursor using microwave energy in a silica template compared to a conventional method using a heat treatment. A supported catalyst and a fuel cell include the mesoporous carbon.

摘要翻译： 通过混合碳前体，酸和溶剂来制备介孔碳以获得碳前体混合物; 用碳前体混合物浸渍有序介孔二氧化硅（OMS）; 通过在其上照射100至2000W的功率的微波能量来在800至1300℃下将浸渍的OMS碳化，以形成OMS-碳复合材料; 并从OMS-碳复合材料中除去介孔二氧化硅。 制备介孔碳的方法与使用热处理的常规方法相比，通过使用微波能量在二氧化硅模板中碳化碳前体可显着降低碳化时间。 载体催化剂和燃料电池包括介孔碳。

公开(公告)号：US07811959B2

公开(公告)日：2010-10-12

申请号：US10976783

申请日：2004-11-01

申请人： Seol-ah Lee ,  Chan-ho Pak

发明人： Seol-ah Lee ,  Chan-ho Pak

IPC分类号： H01M4/88 ,  B01J21/18 ,  B01J23/00 ,  B01J23/40

CPC分类号： B82Y30/00 ,  H01M4/8605 ,  H01M4/9016 ,  H01M4/921 ,  H01M4/926

摘要： A catalyst support for a fuel cell, having good hydrophilic property and electroconductivity, an anode including the same, and a fuel cell including the anode are provided. The catalyst support is composed of a metal oxide-carbon composite.

摘要翻译： 提供具有良好的亲水性和导电性的燃料电池的催化剂载体，包括该催化剂载体的阳极和包括阳极的燃料电池。 催化剂载体由金属氧化物 - 碳复合材料组成。

公开(公告)号：US20100004121A1

公开(公告)日：2010-01-07

申请号：US11029496

申请日：2005-01-06

申请人： Hyuk Chang ,  Chan-ho Pak ,  Jian Nong Wang

发明人： Hyuk Chang ,  Chan-ho Pak ,  Jian Nong Wang

IPC分类号： B01J21/18 ,  B01J23/42

CPC分类号： H01M4/926 ,  B01J21/185 ,  B01J23/42 ,  B01J35/006 ,  B01J35/023 ,  B01J35/10 ,  B01J35/1076 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/06 ,  C01B2202/34 ,  C01B2202/36 ,  H01M4/8846 ,  H01M4/921 ,  H01M2008/1095

摘要： The present invention is related to a short carbon nanotube for a catalyst support. In particular, the short carbon nanotube may be opened at both ends, a length of less than about 300 nm, and an aspect ratio in the range of about 1 to about 15. The short carbon nanotube has a broad surface area and better electric conductivity and is opened at both ends, thereby impregnating a metallic catalyst into the inner side of the carbon nanotube. Also, a catalyst impregnated carbon nanotube has a broad effective specific surface area, and thus, has an improved efficiency of catalyst utilization, can reduce an amount of the catalyst used and can efficiently diffuse a fuel. Accordingly, when catalyst impregnated carbon nanotube is used in a fuel cell, etc., improvements can be made in the pricing, power density of an electrode, and energy density of a fuel cell.

摘要翻译： 本发明涉及一种用于催化剂载体的短碳纳米管。 特别地，短碳纳米管可以在两端开口，长度小于约300nm，纵横比在约1至约15的范围内。短碳纳米管具有宽的表面积和更好的导电性 并且在两端开口，从而将金属催化剂浸渍到碳纳米管的内侧。 此外，催化剂浸渍的碳纳米管具有广泛的有效比表面积，因此具有提高的催化剂利用效率，可以减少所用催化剂的量并且可以有效地扩散燃料。 因此，当在燃料电池等中使用催化剂浸渍碳纳米管时，可以在燃料电池的定价，电力功率密度和能量密度方面进行改进。

公开(公告)号：US20070270305A1

公开(公告)日：2007-11-22

申请号：US11708600

申请日：2007-02-21

申请人： Chan-ho Pak ,  Dae-jong Yoo ,  Sang-hoon Joo ,  Hyuk Chang ,  Seol-ah Lee

发明人： Chan-ho Pak ,  Dae-jong Yoo ,  Sang-hoon Joo ,  Hyuk Chang ,  Seol-ah Lee

IPC分类号： B01J31/00

CPC分类号： H01M4/926 ,  H01M4/8657 ,  H01M4/8814 ,  H01M4/885 ,  H01M4/92 ,  H01M4/921 ,  H01M8/1007 ,  H01M8/1011 ,  Y02E60/523 ,  Y02P70/56

摘要： A method of preparing a supported catalyst, the method comprising mixing a first catalytic metal precursor and a first solvent to obtain a first catalytic metal precursor mixture; mixing a carbon support for catalyst and the first catalytic metal precursor mixture, and drying the mixture to obtain a primary supported catalyst precursor; subjecting the primary supported catalyst precursor to a hydrogen reduction heat treatment, to obtain a primary supported catalyst; mixing the primary supported catalyst and a polyhydric alcohol to obtain a primary supported catalyst mixture; mixing a second catalytic metal precursor and a second solvent to obtain a second catalytic metal precursor mixture; mixing the primary supported catalyst mixture and the second catalytic metal precursor mixture to obtain a secondary supported catalyst precursor mixture; and adjusting the pH of the secondary supported catalyst precursor mixture, and then heating the secondary supported catalyst precursor mixture to obtain a supported catalyst, a supported catalyst prepared by the method, an electrode comprising the supported catalyst, and a fuel cell including the electrode are provided. A supported catalyst having a desired amount of loaded catalytic metal particles can be obtained by preparing a primary supported catalyst containing catalytic metal particles that are obtained by a primary gas phase reduction reaction of a portion of the final loading amount of catalytic metal, and reducing the remaining portion of the catalytic metal by a secondary liquid phase reduction reaction. The supported catalyst contains catalytic metal particles having a very small average particle size, which are uniformly distributed on a carbon support at a high concentration, and thus exhibits maximal catalyst activity. A fuel cell produced using the supported catalyst has improved efficiency.

摘要翻译： 一种制备负载型催化剂的方法，所述方法包括混合第一催化金属前体和第一溶剂以获得第一催化金属前体混合物; 混合催化剂用碳载体和第一催化金属前体混合物，干燥混合物得到主要负载型催化剂前体; 对初级负载催化剂前体进行氢还原热处理，得到主要负载型催化剂; 将主要负载型催化剂和多元醇混合，得到主要负载型催化剂混合物; 混合第二催化金属前体和第二溶剂以获得第二催化金属前体混合物; 将主要负载的催化剂混合物和第二催化金属前体混合物混合，得到二次负载催化剂前体混合物; 调节二次负载型催化剂前体混合物的pH，然后加热二次负载型催化剂前体混合物，得到负载型催化剂，通过该方法制备的负载催化剂，包含负载型催化剂的电极和包含该电极的燃料电池 提供。 具有所需量的负载的催化金属颗粒的负载型催化剂可以通过制备含有催化金属颗粒的主负载催化剂获得，所述催化金属颗粒是通过催化金属的最终负载量的一部分一次气相还原反应获得的， 催化金属的剩余部分通过二次液相还原反应。 载体催化剂含有平均粒径非常小的催化金属颗粒，其以高浓度均匀分布在碳载体上，因此表现出最大的催化剂活性。 使用负载型催化剂制造的燃料电池具有提高的效率。

公开(公告)号：US20070122690A1

公开(公告)日：2007-05-31

申请号：US11445340

申请日：2006-06-02

申请人： Seol-ah Lee ,  Seung-jae Lee ,  Chan-ho Pak ,  Ji-rae Kim ,  Dae-jong Yoo

发明人： Seol-ah Lee ,  Seung-jae Lee ,  Chan-ho Pak ,  Ji-rae Kim ,  Dae-jong Yoo

IPC分类号： H01M4/94 ,  H01M4/96 ,  H01M4/88

CPC分类号： H01M4/8807 ,  H01M4/8605 ,  H01M4/8821 ,  H01M4/8828 ,  H01M4/92 ,  H01M4/928 ,  H01M8/0234 ,  H01M8/0245 ,  H01M2004/8684 ,  H01M2008/1095 ,  Y02P70/56

摘要： A method of manufacturing an anode for a fuel cell including: performing an acid treatment for a carbon-based compound; washing the resultant obtained from the acid treatment with water and then performing a freeze-drying (lyophilization) process; forming a microporous diffusion layer by dispersing the lyophilized resultant in a solvent, coating the dispersed resultant on a porous carbon support, and drying; and forming a catalyst layer on top of the microporous diffusion layer, an anode for a fuel cell obtained according to the method herein, and a fuel cell using the same. An anode having improved efficiency on liquid fuel diffusion can be obtained when using the fuel diffusion layer including the microporous diffusion layer formed of the carbon-based compounds obtained after an acid treatment and a freeze-drying process according to the present invention. A fuel cell having improved performance can be manufactured by using such an anode.

摘要翻译： 一种制造燃料电池用阳极的方法，包括：对碳系化合物进行酸处理; 用水洗涤从酸处理得到的结果，然后进行冷冻干燥（冷冻干燥）处理; 通过将冻干的产物分散在溶剂中形成微孔扩散层，将分散的产物涂布在多孔碳载体上并干燥; 以及在微多孔扩散层的顶部形成催化剂层，根据本文方法得到的燃料电池用阳极和使用该催化剂的燃料电池。 当使用包括由根据本发明的酸处理和冷冻干燥处理之后获得的碳基化合物形成的微孔扩散层的燃料扩散层时，可以获得提高液体燃料扩散效率的阳极。 可以通过使用这种阳极来制造具有改进性能的燃料电池。

公开(公告)号：US07220697B2

公开(公告)日：2007-05-22

申请号：US10992211

申请日：2004-11-19

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 ,  B01J23/40 ,  C01B31/08 ,  C01B31/02 ,  D01F9/12

CPC分类号： B01J35/1061 ,  B01J21/18 ,  B01J23/42 ,  B01J29/0308 ,  B01J37/06 ,  B01J37/084 ,  C01B32/00 ,  H01M4/9083 ,  H01M4/926

摘要： The present invention is related to a mesoporous carbon molecular sieve, which can be used as a catalyst carrier capable of improving the activity of a supported catalyst and a method of preparing the same. Additionally, the invention is related to a supported catalyst employing the mesoporous carbon molecular sieve as a carrier, and a fuel cell employing the supported catalyst. The mesoporous carbon molecular sieve has an average primary particle size of less than about 500 nm, an average mesopore size in the range of about 3 nm to about 6 nm, and a surface area in the range of about 500 m2/g to about 2000 m2/g.

摘要翻译： 本发明涉及可用作能够提高负载型催化剂的活性的催化剂载体的介孔碳分子筛及其制备方法。 另外，本发明涉及使用中孔碳分子筛作为载体的负载催化剂和使用负载型催化剂的燃料电池。 介孔碳分子筛的平均一次粒径小于约500nm，平均中孔尺寸在约3nm至约6nm的范围内，表面积在约500μm2范围内， /约至约2000m 2 / g。

公开(公告)号：US07179560B2

公开(公告)日：2007-02-20

申请号：US10627705

申请日：2003-07-28

申请人： Ju-hee Cho ,  Chan-ho Pak

发明人： Ju-hee Cho ,  Chan-ho Pak

IPC分类号： H01M8/10 ,  H01M6/18 ,  B01J49/00

CPC分类号： C08J5/2281 ,  C08J2327/12 ,  C08J2383/02 ,  H01B1/122 ,  H01M8/0289 ,  H01M8/1007 ,  H01M8/1011 ,  H01M8/1023 ,  H01M8/1037 ,  H01M8/1039 ,  H01M8/1044 ,  H01M8/1048 ,  H01M2300/0082 ,  H01M2300/0091 ,  Y02E60/523

摘要： A composite electrolyte membrane for decreasing the crossover of polar organic fuel and a fuel cell employing the membrane are provided. The composite electrolyte membrane includes a modified silica in which silicon atoms have substituents as represented by formula 1 and formula 2; and an cation exchange group-containing polymer:Formula 1 —R1—SO3X Formula 2 —R2—S—S—R3— wherein, R1 is an alkylene group with 2–7 carbon atoms, X is a hydrogen atom or an alkali metal, R2 and R3 are each independently an alkylene group with 2–7 carbon atoms.

摘要翻译： 提供了用于减少极性有机燃料的交叉的复合电解质膜和使用该膜的燃料电池。 复合电解质膜包括其中硅原子具有由式1和式2表示的取代基的改性二氧化硅; 和含阳离子交换基团的聚合物：式1 <？在线公式描述=“在线公式”end =“lead”→R 1 -SO 3 < / SUB> X <？in-line-formula description =“In-line Formulas”end =“tail”？> Formula 2 <？in-line-formula description =“In-line Formulas”end =“lead”？> -R 2 -SR 3 - <βin-line-formula description =“In-line Formulas”end =“tail”？>其中，R 1 是具有2-7个碳原子的亚烷基，X是氢原子或碱金属，R 2和R 3各自独立地是亚烷基 具有2-7个碳原子。