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：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：US20080107956A1

公开(公告)日：2008-05-08

申请号：US11690341

申请日：2007-03-23

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

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

IPC分类号： H01M4/92 ,  B01J23/14 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/52 ,  H01M4/88 ,  H01M4/90

CPC分类号： H01M4/92 ,  H01M4/8657 ,  H01M4/8885

摘要： A catalyst, a method of preparing the catalyst, and a fuel cell using the catalyst. The catalyst includes a catalyst metal particle, and a porous coating layer of a conductive ceramic material disposed on the surface of the catalyst metal particle. The catalyst has a methanol tolerance index of 80%, or more, a smaller particle size than a commercially available Pt-black catalyst manufactured through a polyol process. The catalyst can include a PT catalyst metal particle that is surface treated, or coated, with a conductive ceramic ATO. The catalyst has an excellent ORR activity in the presence of methanol, and an enhanced tolerance with respect to methanol. A fuel cell, including an electrode manufactured using the catalyst, has a high energy density and a high fuel efficiency.

摘要翻译： 催化剂，制备催化剂的方法和使用该催化剂的燃料电池。 催化剂包括催化剂金属颗粒和设置在催化剂金属颗粒表面上的导电陶瓷材料的多孔涂层。 与通过多元醇法制造的市售Pt-black催化剂相比，催化剂的甲醇耐受指数为80％以上，粒径小。 催化剂可以包括用导电陶瓷ATO进行表面处理或涂覆的PT催化剂金属颗粒。 该催化剂在甲醇存在下具有优异的ORR活性，并且相对于甲醇具有增强的耐受性。 包括使用该催化剂制造的电极的燃料电池具有高能量密度和高燃料效率。

公开(公告)号：US07994088B2

公开(公告)日：2011-08-09

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： H01M4/88 ,  B01J21/18 ,  B01J23/00 ,  B01J23/40 ,  B01J23/74 ,  H01M4/02 ,  H01M4/36 ,  H01M4/92 ,  H01M4/94 ,  H01M4/90

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, a supported catalyst prepared by the method, and a fuel cell using the supported catalyst. In particular, a method of preparing a supported catalyst 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 a catalytic metal, and reducing the remaining portion of the catalytic metal by a secondary liquid phase reduction reaction using the primary supported catalyst. 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： 制备载体催化剂的方法，通过该方法制备的负载催化剂和使用负载型催化剂的燃料电池。 特别是制备负载型催化剂的方法，该方法是通过制备含有催化金属颗粒的主载体催化剂，所述催化剂金属颗粒是通过催化金属的最终负载量的一部分的一次气相还原反应获得的，并且还原剩余部分 催化金属通过使用主要负载催化剂的二次液相还原反应。 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：US07776779B2

公开(公告)日：2010-08-17

申请号：US11445235

申请日：2006-06-02

申请人： Sang Hoon Joo ,  Chan-ho Pak

发明人： Sang Hoon Joo ,  Chan-ho Pak

IPC分类号： C01B31/00 ,  C01B31/02 ,  C01B31/08 ,  B01J21/18 ,  B01J23/40 ,  B01J23/74

CPC分类号： B01J21/18 ,  B01J29/0308 ,  B01J37/0018 ,  B82Y30/00 ,  C01B32/00 ,  H01M4/921 ,  H01M4/926 ,  H01M2008/1095

摘要： A method of preparing a mesoporous carbon includes mixing a mesophase pitch, 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; heat-treating and carbonizing the impregnated OMS to form an OMS-carbon composite; and removing the OMS from the OMS-carbon composite. The mesoporous carbon uses the mesophase pitch and the carbon precursor to reduce sheet resistance, and thus can efficiently transfer electric energy. Such mesoporous carbon can be used as a conductive material of electrodes for fuel cells. When the mesoporous carbon is used as a support for catalysts of electrodes, a supported catalyst containing the support can be used to manufacture a fuel cell having high efficiency.

摘要翻译： 制备中孔碳的方法包括混合中间相沥青，碳前体，酸和溶剂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）; 对浸渍的OMS进行热处理和碳化以形成OMS-碳复合材料; 并从OMS-碳复合材料中除去OMS。 中孔碳使用中间相沥青和碳前体来降低薄层电阻，从而可以有效地转移电能。 这种介孔碳可以用作燃料电池用电极的导电材料。 当介孔碳用作电极催化剂的载体时，可以使用含有载体​​的载体催化剂来制造高效率的燃料电池。

公开(公告)号：US07732094B2

公开(公告)日：2010-06-08

申请号：US11443165

申请日：2006-05-31

申请人： Chan-ho Pak ,  Yeong-suk Choi ,  Hyuk Chang ,  Sang Hoon Joo

发明人： Chan-ho Pak ,  Yeong-suk Choi ,  Hyuk Chang ,  Sang Hoon Joo

IPC分类号： H01M4/60 ,  H01M4/62 ,  H01M4/88 ,  B01J31/00

CPC分类号： B01J21/18 ,  B01J23/42 ,  B01J29/0308 ,  B01J35/10 ,  B01J35/1023 ,  B01J35/1047 ,  B01J35/1061 ,  B01J37/0018 ,  B01J37/084 ,  H01M4/90 ,  H01M4/9083 ,  H01M4/926 ,  H01M8/08 ,  H01M8/086 ,  H01M8/10 ,  H01M8/1007 ,  H01M8/1011 ,  Y02E60/523 ,  Y02P70/56

摘要： A mesoporous carbon composite includes mesoporous carbon having mesopores; a conductive polymer coated on only an outer surface of the mesoporous carbon; and an organic electrolyte. The mesoporous carbon composite may be prepared by impregnating an ordered mesoporous silica (OMS) with a mixture comprising a carbon precursor, an acid, and a solvent; heat-treating and carbonizing the impregnated OMS to form an OMS-carbon composite; mixing the OMS-carbon composite with a monomer that forms a conductive polymer and a solvent to provide a surface of the OMS-carbon composite with the monomer; polymerizing the monomer to obtain a conductive polymer-coated OMS-carbon composite; removing the OMS from the composite to obtain a conductive polymer-coated mesoporous carbon; and doping the conductive polymer-coated mesoporous carbon with an organic electrolyte. A supported catalyst and a fuel cell include the mesoporous carbon composite.

摘要翻译： 介孔碳复合材料包括具有中孔的中孔碳; 只涂覆在介孔碳外表面上的导电聚合物; 和有机电解质。 介孔碳复合材料可以通过用含有碳前体，酸和溶剂的混合物浸渍有序介孔二氧化硅（OMS）来制备; 对浸渍的OMS进行热处理和碳化以形成OMS-碳复合材料; 将OMS-碳复合物与形成导电聚合物和溶剂的单体混合以提供OMS-碳复合材料与单体的表面; 聚合单体以获得导电聚合物涂覆的OMS-碳复合材料; 从复合材料中除去OMS以获得导电聚合物涂覆的介孔碳; 并用有机电解质掺杂导电聚合物涂覆的中孔碳。 载体催化剂和燃料电池包括介孔碳复合材料。

公开(公告)号：US07670582B2

公开(公告)日：2010-03-02

申请号：US11434113

申请日：2006-05-16

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

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

IPC分类号： C01B31/00 ,  B01J21/18 ,  H01M4/96

CPC分类号： B01J21/18 ,  B01J23/42 ,  B01J37/0018 ,  B01J37/084 ,  C01B32/00 ,  H01M4/8605 ,  H01M4/8807 ,  H01M4/885 ,  H01M4/8882 ,  H01M4/9083 ,  H01M4/92 ,  H01M4/921 ,  H01M4/926 ,  H01M4/96 ,  H01M8/086 ,  H01M8/1011 ,  H01M2008/1095 ,  Y02E60/523 ,  Y02P70/56

摘要： Provided are a mesoporous carbon and a method of preparing the same, where the mesoporous carbon is prepared using phenanthrene as a carbon source and a mesoporous silica as a template. The mesoporous carbon has a significantly low plane resistance, which can be obtained without sacrificing other physical properties, and thus obtains a high conductivity and effectively transfers electrical energy. Accordingly, a fuel cell electrode or a fuel cell which is produced using the mesoporous carbon as a conductive material has high efficiency. Furthermore, the mesoporous carbon may be used in various electrochemical devices as a conductive material.

摘要翻译： 提供介孔碳及其制备方法，其中介孔碳是使用菲作为碳源和介孔二氧化硅作为模板制备的。 中孔碳具有显着低的平面电阻，其可以在不牺牲其他物理性能的情况下获得，从而获得高导电性并有效转移电能。 因此，使用介孔碳作为导电材料制造的燃料电池电极或燃料电池具有高效率。 此外，介孔碳可以用作各种电化学装置中的导电材料。

公开(公告)号：US20070269699A1

公开(公告)日：2007-11-22

申请号：US11708599

申请日：2007-02-21

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

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

IPC分类号： H01M8/10

CPC分类号： H01M4/921 ,  H01M4/8657 ,  H01M4/8668 ,  H01M4/881 ,  H01M4/8814 ,  H01M4/8828 ,  H01M4/8875 ,  H01M4/8882 ,  H01M4/926 ,  H01M4/928

摘要： A catalyst coated membrane (CCM) comprising an anode catalyst layer having a first catalyst layer composed of a non-supported catalyst and a second catalyst layer composed of a supported catalyst, a cathode catalyst layer composed of a supported catalyst, and an electrolyte membrane interposed between the anode catalyst layer and a cathode catalyst layer, the first catalyst layer of the anode catalyst layer being disposed adjacent to the electrolyte membrane; a membrane electrode assembly (MEA) comprising the catalyst coated membrane; a method of preparing the membrane electrode assembly; and a fuel cell comprising the membrane electrode assembly, are provided. The CCM, which comprises a bilayered anode catalyst layer including the first catalyst layer composed of a non-supported catalyst and the second catalyst layer composed of a supported catalyst, exhibits reduced electrical resistance and interfacial resistance, and has increased catalyst availability. The use of the CCM and an MEA having the same results in a decrease in the interfacial resistance between the electrodes and the electrolyte membrane, a decrease in the amount of the catalyst used in the electrode catalyst layer, and a decrease in the thickness deviation in the electrode layers. The fuel cell employing the MEA exhibits maximal activity of the supported catalyst, and has improved cell characteristics such as output voltage, output density, efficiency, and the like.

摘要翻译： 一种催化剂涂覆膜（CCM），其包括具有由非负载型催化剂构成的第一催化剂层和由负载型催化剂构成的第二催化剂层的阳极催化剂层，由负载型催化剂构成的阴极催化剂层和插入 在阳极催化剂层和阴极催化剂层之间，阳极催化剂层的第一催化剂层设置在电解质膜附近; 包含所述催化剂涂覆膜的膜电极组件（MEA） 一种制备膜电极组件的方法; 以及包括膜电极组件的燃料电池。 包含由非载体催化剂构成的第一催化剂层和由负载型催化剂构成的第二催化剂层的双层阳极催化剂层的CCM显示出降低的电阻和界面电阻，并且提高了催化剂的可利用性。 使用具有相同结果的CCM和MEA在电极和电解质膜之间的界面电阻降低，电极催化剂层中使用的催化剂量的减少以及厚度偏差的降低 电极层。 使用MEA的燃料电池显示出负载型催化剂的最大活性，并且具有改善的电池特性，例如输出电压，输出密度，效率等。

公开(公告)号：US20070042268A1

公开(公告)日：2007-02-22

申请号：US11443165

申请日：2006-05-31

申请人： Chan-ho Pak ,  Yeong-suk Choi ,  Hyuk Chang ,  Sang-hoon Joo

发明人： Chan-ho Pak ,  Yeong-suk Choi ,  Hyuk Chang ,  Sang-hoon Joo

IPC分类号： H01M4/60 ,  H01M4/62 ,  B01J31/00 ,  B01J21/18

CPC分类号： B01J21/18 ,  B01J23/42 ,  B01J29/0308 ,  B01J35/10 ,  B01J35/1023 ,  B01J35/1047 ,  B01J35/1061 ,  B01J37/0018 ,  B01J37/084 ,  H01M4/90 ,  H01M4/9083 ,  H01M4/926 ,  H01M8/08 ,  H01M8/086 ,  H01M8/10 ,  H01M8/1007 ,  H01M8/1011 ,  Y02E60/523 ,  Y02P70/56

摘要： A mesoporous carbon composite includes mesoporous carbon having mesopores; a conductive polymer coated on only an outer surface of the mesoporous carbon; and an organic electrolyte comprising a lithium salt and an organic solvent. The mesoporous carbon composite may be prepared by impregnating an ordered mesoporous silica (OMS) with a carbon precursor mixture comprising a carbon precursor, an acid, and a solvent; heat-treating and carbonizing the impregnated OMS to form an OMS-carbon composite; mixing the OMS-carbon composite with a monomer that forms a conductive polymer and a solvent to provide a surface of the OMS-carbon composite with the monomer that forms a conductive polymer; polymerizing the monomer to obtain a conductive polymer-coated OMS-carbon composite; removing the OMS from the conductive polymer-coated OMS-carbon composite to obtain a conductive polymer-coated mesoporous carbon; and doping the conductive polymer-coated mesoporous carbon with an organic electrolyte comprising a lithium salt and an organic solvent to form the mesoporous carbon composite. A supported catalyst contains the mesoporous carbon composite, and a fuel cell uses an electrode containing the mesoporous carbon composite.

摘要翻译： 介孔碳复合材料包括具有中孔的中孔碳; 只涂覆在介孔碳外表面上的导电聚合物; 以及包含锂盐和有机溶剂的有机电解质。 介孔碳复合材料可以通过用含碳前体，酸和溶剂的碳前体混合物浸渍有序介孔二氧化硅（OMS）来制备; 对浸渍的OMS进行热处理和碳化以形成OMS-碳复合材料; 将OMS-碳复合物与形成导电聚合物和溶剂的单体混合以提供OMS-碳复合材料与形成导电聚合物的单体的表面; 聚合单体以获得导电聚合物涂覆的OMS-碳复合材料; 从导电聚合物涂覆的OMS-碳复合材料中除去OMS以获得导电聚合物涂覆的介孔碳; 并用包含锂盐和有机溶剂的有机电解质掺杂导电聚合物涂覆的介孔碳以形成中孔碳复合物。 载体催化剂含有介孔碳复合材料，燃料电池使用含有介孔碳复合材料的电极。

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。