公开(公告)号：US08187764B2

公开(公告)日：2012-05-29

申请号：US11347275

申请日：2006-02-06

申请人： Ji-rae Kim ,  Hae-kyoung Kim ,  Seung-jae Lee ,  Hyuk Chang

发明人： Ji-rae Kim ,  Hae-kyoung Kim ,  Seung-jae Lee ,  Hyuk Chang

IPC分类号： H01M2/00 ,  H01M8/10

CPC分类号： H01M4/8605 ,  H01M4/881 ,  H01M4/8817 ,  H01M4/8896 ,  H01M8/023 ,  H01M8/04119 ,  H01M8/1004

摘要： A fuel cell includes a cathode, an anode, an electrolyte membrane interposed between the cathode and the anode, and a porous layer containing a moisture retentive material. The anode includes an anode catalyst layer adjacent to the electrolyte membrane and an anode diffusion layer adjacent to the anode catalyst layer, and the porous layer is disposed between the anode catalyst layer and the electrolyte membrane. The performance of the fuel cell can be stably maintained even when a fuel supply is temporarily interrupted due to a malfunction of a pump or clogging of a fuel channel.

摘要翻译： 燃料电池包括阴极，阳极，插在阴极和阳极之间的电解质膜，以及含有保湿材料的多孔层。 阳极包括与电解质膜相邻的阳极催化剂层和与阳极催化剂层相邻的阳极扩散层，并且多孔层设置在阳极催化剂层和电解质膜之间。 即使当由于泵的故障或燃料通道堵塞而暂时中断燃料供给时，也能够稳定地维持燃料电池的性能。

公开(公告)号：US08173096B2

公开(公告)日：2012-05-08

申请号：US12911352

申请日：2010-10-25

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： C09C1/44

CPC分类号： H01M4/926 ,  B01J21/18 ,  B82Y30/00 ,  C01B32/05 ,  H01M4/92 ,  H01M4/921 ,  H01M2008/1095 ,  Y10S977/734 ,  Y10S977/737 ,  Y10S977/843 ,  Y10S977/847 ,  Y10S977/888

摘要： A carbon nanosphere has at least one opening. The carbon nanosphere is obtained by preparing a carbon nanosphere and treating it with an acid to form the opening. The carbon nanosphere with at least one opening has higher utilization of a surface area and electrical conductivity and lower mass transfer resistance than a conventional carbon nanotube, thus allowing for higher current density and cell voltage with a smaller amount of metal catalyst per unit area of a fuel cell electrode.

摘要翻译： 碳纳米球具有至少一个开口。 碳纳米球通过制备碳纳米球并用酸处理以形成开口获得。 具有至少一个开口的碳纳米球具有比常规碳纳米管更高的表面积利用率和导电性和较低的传质阻力，从而允许较高的电流密度和电池电压，每单位面积的金属催化剂量 燃料电池电极。

公开(公告)号：US20110244371A1

公开(公告)日：2011-10-06

申请号：US10813392

申请日：2004-03-31

申请人： Hyuk Chang ,  Ji-rae Kim

发明人： Hyuk Chang ,  Ji-rae Kim

IPC分类号： H01M4/92 ,  B32B3/26 ,  C23C14/14 ,  C23C14/35 ,  H01M4/88 ,  B82Y99/00

CPC分类号： H01M4/92 ,  B82Y30/00 ,  H01M4/485 ,  H01M4/8605 ,  H01M4/926 ,  H01M8/065 ,  Y02P70/56 ,  Y10T428/249953

摘要： A microporous thin film, a method of forming the same and a fuel cell including the microporous thin film, are provided. The microporous thin film includes uniform nanoparticles and has a porosity of at least about 20%. Therefore, the microporous thin film can be efficiently used in various applications such as fuel cells, primary and secondary batteries, adsorbents, and hydrogen storage alloys. The microporous thin film is formed on a substrate, includes metal nanoparticles, and has a microporous structure with porosity of 20% or more.

摘要翻译： 提供微孔薄膜，其形成方法和包括微孔薄膜的燃料电池。 微孔薄膜包括均匀的纳米颗粒，并且具有至少约20％的孔隙率。 因此，微孔薄膜可以有效地用于各种应用中，例如燃料电池，一次电池，二次电池，吸附剂和储氢合金。 微孔薄膜形成在基板上，包括金属纳米粒子，并且具有孔隙率为20％以上的微孔结构。

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：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：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：US20060239890A1

公开(公告)日：2006-10-26

申请号：US11262812

申请日：2005-11-01

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

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

IPC分类号： C01B31/02 ,  H01M4/96

CPC分类号： H01M4/926 ,  B01J21/18 ,  B82Y30/00 ,  C01B32/05 ,  H01M4/92 ,  H01M4/921 ,  H01M2008/1095 ,  Y10S977/734 ,  Y10S977/737 ,  Y10S977/843 ,  Y10S977/847 ,  Y10S977/888

摘要： A carbon nanosphere has at least one opening. The carbon nanosphere is obtained by preparing a carbon nanosphere and treating it with an acid to form the opening. The carbon nanosphere with at least one opening has higher utilization of a surface area and electrical conductivity and lower mass transfer resistance than a conventional carbon nanotube, thus allowing for higher current density and cell voltage with a smaller amount of metal catalyst per unit area of a fuel cell electrode.

公开(公告)号：US20060159975A1

公开(公告)日：2006-07-20

申请号：US11332266

申请日：2006-01-17

申请人： Hae-Kyoung Kim ,  Kenneth Balkus ,  Hyuk Chang ,  John Ferraris ,  Duck Yang ,  Zhiwei Yang

发明人： Hae-Kyoung Kim ,  Kenneth Balkus ,  Hyuk Chang ,  John Ferraris ,  Duck Yang ,  Zhiwei Yang

IPC分类号： H01M8/10

CPC分类号： H01M8/103 ,  H01M8/1037 ,  H01M8/1048 ,  H01M8/1074 ,  Y02P70/56

摘要： A polymer electrolyte forming composition includes a trialkoxysilane containing an epoxy group, polyethyleneimine, and at least one of heteropolyacid and trifluoromethanesulfoneimid

摘要翻译： 聚合物电解质形成组合物包含含有环氧基的三烷氧基硅烷，聚乙烯亚胺，以及杂多酸和三氟甲磺酰亚胺中的至少一种

公开(公告)号：US20060094928A1

公开(公告)日：2006-05-04

申请号：US11262813

申请日：2005-11-01

申请人： Hyuk Chang ,  Kyoung Choi ,  Christopher Ko

发明人： Hyuk Chang ,  Kyoung Choi ,  Christopher Ko

IPC分类号： H01M8/18 ,  A61B1/00

CPC分类号： A61B1/041 ,  H01M4/8605 ,  H01M4/8882 ,  H01M4/8896 ,  H01M4/921 ,  H01M8/1009 ,  H01M8/1013 ,  Y02E60/522

摘要： A fuel cell for a microcapsule-type robot uses alcohol or an aqueous alcohol solution as a fuel and was hydrogen peroxide or an aqueous hydrogen peroxide solution as an oxidizing agent. A microcapsule-type robot also uses the fuel cell. The fuel cell may be used in a microcapsule-type endoscope and have an operating time that is long enough to diagnose human organs. The fuel cell may comprise hydrogen peroxide as an oxidizing agent instead of air or oxygen such that the fuel cell can operate inside the human body. Thus, an oxygen source, which cannot be obtained in a human body, can be easily supplied to the fuel cell, and the fuel cell has higher performance than a fuel cell in which air is used as an oxidizing agent.

摘要翻译： 用于微胶囊型机器人的燃料电池使用醇或醇水溶液作为燃料，并且是过氧化氢或过氧化氢水溶液作为氧化剂。 微胶囊型机器人也使用燃料电池。 燃料电池可以用于微胶囊型内窥镜，其操作时间足以诊断人体器官。 燃料电池可以包括作为氧化剂的过氧化氢代替空气或氧气，使得燃料电池可以在人体内部操作。 因此，能够容易地向燃料电池供给在人体中不能获得的氧源，并且燃料电池具有比使用空气作为氧化剂的燃料电池更高的性能。