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    Method of preparing a nanofiber and a fuel cell including the nanofiber
    5.
    发明授权
    Method of preparing a nanofiber and a fuel cell including the nanofiber 失效
    制备纳米纤维的方法和包括纳米纤维的燃料电池

    公开(公告)号：US08283091B2

    公开(公告)日：2012-10-09

    申请号：US13200256

    申请日：2011-09-21

    申请人： Jeong-hee Lee ,  Jae-young Choi ,  Chan-ho Pak ,  Eun-ju Ra ,  Young-hee Lee ,  Kay-hyeok An

    发明人： Jeong-hee Lee ,  Jae-young Choi ,  Chan-ho Pak ,  Eun-ju Ra ,  Young-hee Lee ,  Kay-hyeok An

    IPC分类号： H01M4/02

    CPC分类号： H01M4/92 ,  B82Y30/00 ,  D01F9/20 ,  D01F11/04 ,  H01M4/90 ,  H01M4/9083 ,  H01M4/926 ,  H01M2008/1095 ,  Y10S977/948

    摘要： Provided is a carbon nanofiber, wherein the carbon nanofiber has a surface oxygen content of at least 0.03 calculated by the formula: Oxygen content=[atomic percentage of oxygen/atomic percentage of carbon] using atomic percentages of oxygen and carbon, respectively calculated from an area of an oxygen peak having a binding energy of 524 to 540 eV, an area of a nitrogen peak having a binding energy of 392 to 404 eV, and an area of a carbon peak having a binding energy of 282 to 290 eV in X-ray photoelectron spectroscopy. The nanofibers have high surface oxygen content and may have metal catalyst nano particles densely and uniformly distributed on the outer wall of the carbon nanofibers, thereby having high electrochemical efficiency.

    摘要翻译： 本发明提供一种碳纳米纤维，其中，所述碳纳米纤维的表面氧含量为0.03以下，由下列公式计算：氧含量= [氧的原子百分比/碳的原子百分比]，使用原子百分比的氧和碳，分别由 具有结合能为524至540eV的氧峰的面积，结合能为392至404eV的氮峰的面积，以及具有282至290eV的结合能的碳峰的面积， ray光电子能谱。 纳米纤维具有高表面氧含量，并且可以使金属催化剂纳米颗粒密集均匀地分布在碳纳米纤维的外壁上，从而具有高的电化学效率。

    METHOD OF MANUFACTURING HIERARCHICAL MESOPOROUS CARBON AND CARBON OBTAINED THEREBY
    6.
    发明申请
    METHOD OF MANUFACTURING HIERARCHICAL MESOPOROUS CARBON AND CARBON OBTAINED THEREBY 审中-公开
    制造分层碳酸钙和碳的方法

    公开(公告)号：US20120196745A1

    公开(公告)日：2012-08-02

    申请号：US13360892

    申请日：2012-01-30

    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 ,  C01B31/00 ,  B82Y40/00 ,  B82Y30/00

    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 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。 当这种负载型催化剂用于燃料电池中时，燃料的供应和副产物的运输便利。

    Nanocomposite for fuel cell, method of preparing the nanocomposite, and fuel cell including the nanocomposite
    9.
    发明申请
    Nanocomposite for fuel cell, method of preparing the nanocomposite, and fuel cell including the nanocomposite 失效
    用于燃料电池的纳米复合材料，制备纳米复合材料的方法和包括纳米复合材料的燃料电池

    公开(公告)号：US20120046434A1

    公开(公告)日：2012-02-23

    申请号：US13200256

    申请日：2011-09-21

    申请人： Jeong-hee Lee ,  Jae-young Choi ,  Chan-ho Pak ,  Eun-ju Ra ,  Young-hee Lee ,  Kay-hyeok An

    发明人： Jeong-hee Lee ,  Jae-young Choi ,  Chan-ho Pak ,  Eun-ju Ra ,  Young-hee Lee ,  Kay-hyeok An

    IPC分类号： C08F20/44 ,  B82Y40/00

    CPC分类号： H01M4/92 ,  B82Y30/00 ,  D01F9/20 ,  D01F11/04 ,  H01M4/90 ,  H01M4/9083 ,  H01M4/926 ,  H01M2008/1095 ,  Y10S977/948

    摘要： Provided is a nanocomposite for the catalyst layer of a fuel cell electrode including: a carbon nanofiber; and metal catalyst particles uniformly applied to the surface of the carbon nanofiber, wherein the carbon nanofiber has a surface oxygen content of at least 0.03 calculated by the formula: Oxygen content=[atomic percentage of oxygen/atomic percentage of carbon] using atomic percentages of oxygen and carbon, respectively calculated from an area of an oxygen peak having a binding energy of 524 to 540 eV, an area of a nitrogen peak having a binding energy of 392 to 404 eV, and an area of a carbon peak having a binding energy of 282 to 290 eV in X-ray photoelectron spectroscopy. The nanocomposite has high surface oxygen content and has metal catalyst nano particles densely and uniformly distributed on the outer wall of the carbon fibers, thereby having high electrochemical efficiency.

    摘要翻译： 提供一种用于燃料电池电极的催化剂层的纳米复合材料，其包括：碳纳米纤维; 和金属催化剂颗粒均匀地施加到碳纳米纤维的表面上，其中碳纳米纤维的表面氧含量至少为0.03，由下式计算：氧含量= [原子百分比的氧/原子百分比的碳]使用原子百分比 氧和碳分别由具有524至540eV的结合能的氧峰的面积，具有392至404eV的结合能的氮峰的面积和具有结合能的碳峰的面积计算 在X射线光电子能谱中为282〜290eV。 纳米复合材料具有高表面氧含量，并且具有金属催化剂纳米颗粒密集均匀地分布在碳纤维的外壁上，从而具有高的电化学效率。