SUPPORTED CATALYST AND METHOD OF PREPARING THE SAME
    1.
    发明申请
    SUPPORTED CATALYST AND METHOD OF PREPARING THE SAME 有权
    支持的催化剂及其制备方法

    公开(公告)号:US20100081034A1

    公开(公告)日:2010-04-01

    申请号:US12615514

    申请日:2009-11-10

    IPC分类号: H01M4/90 B01J31/06

    摘要: A method of preparing a supported catalyst includes dissolving a cation exchange polymer in alcohol to prepare a solution containing cation exchange polymer; mixing the cation exchange polymer containing solution with a catalytic metal precursor or a solution containing catalytic metal precursor; heating the mixture after adjusting its pH to a predetermined range; adding a reducing agent to the resultant and stirring the solution to reduce the catalytic metal precursor; mixing the resultant with a catalyst support; adding a precipitating agent to the resultant to form precipitates; and filtering and drying the precipitates. The method of preparing a supported catalyst can provide a highly dispersed supported catalyst containing catalytic metal particles with a reduced average size regardless of the type of catalyst support, which provides better catalytic activity than conventional catalysts at the same loading amount of catalytic metal.

    摘要翻译: 制备负载型催化剂的方法包括将阳离子交换聚合物溶解在醇中以制备含有阳离子交换聚合物的溶液; 将含阳离子交换聚合物的溶液与催化金属前体或含有催化金属前体的溶液混合; 将其pH调节至预定范围后加热混合物; 向所得物中加入还原剂并搅拌溶液以还原催化金属前体; 将所得物与催化剂载体混合; 向所得物中加入沉淀剂形成析出物; 并过滤并干燥沉淀物。 制备负载型催化剂的方法可以提供高分散的载体催化剂,其含有平均尺寸较小的催化金属颗粒,而不管催化剂载体的类型如何,这在催化金属的相同负载量下提供比常规催化剂更好的催化活性。

    Supported catalyst and method of preparing the same
    3.
    发明授权
    Supported catalyst and method of preparing the same 有权
    负载催化剂及其制备方法

    公开(公告)号:US07867940B2

    公开(公告)日:2011-01-11

    申请号:US11334472

    申请日:2006-01-19

    摘要: A method of preparing a supported catalyst includes dissolving a cation exchange polymer in alcohol to prepare a solution containing cation exchange polymer; mixing the cation exchange polymer containing solution with a catalytic metal precursor or a solution containing catalytic metal precursor; heating the mixture after adjusting its pH to a predetermined range; adding a reducing agent to the resultant and stirring the solution to reduce the catalytic metal precursor; mixing the resultant with a catalyst support; adding a precipitating agent to the resultant to form precipitates; and filtering and drying the precipitates. The method of preparing a supported catalyst can provide a highly dispersed supported catalyst containing catalytic metal particles with a reduced average size regardless of the type of catalyst support, which provides better catalytic activity than conventional catalysts at the same loading amount of catalytic metal.

    摘要翻译: 制备负载型催化剂的方法包括将阳离子交换聚合物溶解在醇中以制备含有阳离子交换聚合物的溶液; 将含阳离子交换聚合物的溶液与催化金属前体或含有催化金属前体的溶液混合; 将其pH调节至预定范围后加热混合物; 向所得物中加入还原剂并搅拌溶液以还原催化金属前体; 将所得物与催化剂载体混合; 向所得物中加入沉淀剂形成析出物; 并过滤并干燥沉淀物。 制备负载型催化剂的方法可以提供高分散的载体催化剂,其含有平均尺寸较小的催化金属颗粒,而不管催化剂载体的类型如何,这在催化金属的相同负载量下提供比常规催化剂更好的催化活性。

    Supported catalyst and method of preparing the same
    4.
    发明申请
    Supported catalyst and method of preparing the same 有权
    负载催化剂及其制备方法

    公开(公告)号:US20060159980A1

    公开(公告)日:2006-07-20

    申请号:US11334472

    申请日:2006-01-19

    摘要: A method of preparing a supported catalyst includes dissolving a cation exchange polymer in alcohol to prepare a solution containing cation exchange polymer; mixing the cation exchange polymer containing solution with a catalytic metal precursor or a solution containing catalytic metal precursor; heating the mixture after adjusting its pH to a predetermined range; adding a reducing agent to the resultant and stirring the solution to reduce the catalytic metal precursor; mixing the resultant with a catalyst support; adding a precipitating agent to the resultant to form precipitates; and filtering and drying the precipitates. The method of preparing a supported catalyst can provide a highly dispersed supported catalyst containing catalytic metal particles with a reduced average size regardless of the type of catalyst support, which provides better catalytic activity than conventional catalysts at the same loading amount of catalytic metal.

    摘要翻译: 制备负载型催化剂的方法包括将阳离子交换聚合物溶解在醇中以制备含有阳离子交换聚合物的溶液; 将含阳离子交换聚合物的溶液与催化金属前体或含有催化金属前体的溶液混合; 将其pH调节至预定范围后加热混合物; 向所得物中加入还原剂并搅拌溶液以还原催化金属前体; 将所得物与催化剂载体混合; 向所得物中加入沉淀剂形成析出物; 并过滤并干燥沉淀物。 制备负载型催化剂的方法可以提供高分散的载体催化剂,其含有平均尺寸较小的催化金属颗粒,而不管催化剂载体的类型如何,这在催化金属的相同负载量下提供比常规催化剂更好的催化活性。

    Accelerated testing method of rapidly evaluating lifespan of fuel cell
    5.
    发明授权
    Accelerated testing method of rapidly evaluating lifespan of fuel cell 有权
    快速评估燃料电池寿命的加速试验方法

    公开(公告)号:US07906243B2

    公开(公告)日:2011-03-15

    申请号:US11336873

    申请日:2006-01-23

    IPC分类号: H01M8/00

    摘要: A method of estimating a lifespan of a fuel cell including a cathode and an anode which contain catalysts and an electrolyte membrane interposed between the anode and the cathode. A cyclic potential with a voltage ranging from a low voltage to a voltage greater than oxidation voltages of the catalysts is applied between the anode and the cathode and fuel cell performance is measured initially and after a predetermined number of cycles. The lifespan of the fuel cell may estimated based on degradation of cell performance after the predetermined number of cycles, based on CV curves obtained during the cycling of the potential and/or a change in particle size of the catalysts after the predetermined number of cycles.

    摘要翻译: 一种估计包含阴极和阳极的燃料电池的使用寿命的方法,所述阴极和阳极含有催化剂和置于阳极和阴极之间的电解质膜。 在阳极和阴极之间施加具有从低电压到大于催化剂的氧化电压的电压的循环电位,并且在预定数量的循环之后测量燃料电池性能。 燃料电池的寿命可以基于在预定循环次数之后基于在电位循环期间获得的CV曲线和/或在预定循环次数之后催化剂的粒度变化,基于预定循环数之后的电池性能的降低来估计 。

    Accelerated testing method of rapidly evaluating lifespan of fuel cell
    6.
    发明申请
    Accelerated testing method of rapidly evaluating lifespan of fuel cell 有权
    快速评估燃料电池寿命的加速试验方法

    公开(公告)号:US20060166052A1

    公开(公告)日:2006-07-27

    申请号:US11336873

    申请日:2006-01-23

    IPC分类号: H01M8/00

    摘要: A method of estimating a lifespan of a fuel cell including a cathode and an anode which contain catalysts and an electrolyte membrane interposed between the anode and the cathode. A cyclic potential with a voltage ranging from a low voltage to a voltage greater than oxidation voltages of the catalysts is applied between the anode and the cathode and fuel cell performance is measured initially and after a predetermined number of cycles. The lifespan of the fuel cell may estimated based on degradation of cell performance after the predetermined number of cycles, based on CV curves obtained during the cycling of the potential and/or a change in particle size of the catalysts after the predetermined number of cycles.

    摘要翻译: 一种估计包含阴极和阳极的燃料电池的使用寿命的方法,所述阴极和阳极含有催化剂和置于阳极和阴极之间的电解质膜。 在阳极和阴极之间施加具有从低电压到大于催化剂的氧化电压的电压的循环电位,并且在预定数量的循环之后测量燃料电池性能。 燃料电池的寿命可以基于在预定循环次数之后基于在电位循环期间获得的CV曲线和/或在预定循环次数之后催化剂的粒度变化,基于预定循环数之后的电池性能的降低来估计 。

    CARBON NANORINGS MANUFACTURED FROM TEMPLATING NANOPARTICLES
    7.
    发明申请
    CARBON NANORINGS MANUFACTURED FROM TEMPLATING NANOPARTICLES 失效
    碳纳米管从制备纳米粒子制造

    公开(公告)号:US20100135893A1

    公开(公告)日:2010-06-03

    申请号:US11539120

    申请日:2006-10-05

    IPC分类号: C01B31/04 H01M4/88

    摘要: Methods for manufacturing carbon nanostructures include 1) forming intermediate carbon nanostructures by polymerizing a carbon precursor in the presence of templating nanoparticles, 2) carbonizing the intermediate carbon nanostructures to form an intermediate composite nanostructure, and 3) removing the templating nanoparticles from the intermediate composite nanostructure to form carbon nanorings. The carbon nanorings manufactured using the foregoing steps have one or more carbon layers forming a wall that defines a generally annular nanostructure having a hole. The length of the nanoring is less than or about equal to the outer diameter thereof. The carbon nanostructures are well-suited for use as a fuel cell catalyst support. The carbon nanostructures exhibit high surface area, high porosity, high graphitization, and facilitate mass transfer and electron transfer in fuel cell reactions. Carbon nanorings manufactured according to the present invention can be used as a substitute for more expensive and likely more fragile carbon nanotubes.

    摘要翻译: 制造碳纳米结构的方法包括:1)在模板纳米颗粒存在下,通过聚合碳前体形成中间碳纳米结构,2)碳化中间碳纳米结构以形成中间复合纳米结构,和3)从中间复合纳米结构中除去模板纳米颗粒 以形成碳纳米管。 使用上述步骤制造的碳纳米管具有形成壁的一个或多个碳层,所述壁限定具有孔的大致环形的纳米结构。 纳米的长度小于或等于其外径。 碳纳米结构非常适合用作燃料电池催化剂载体。 碳纳米结构表现出高表面积,高孔隙率,高石墨化,并促进燃料电池反应中的传质和电子传递。 根据本发明制造的碳纳米管可以用作更昂贵和可能更脆弱的碳纳米管的替代物。

    Carbon nanorings manufactured from templating nanoparticles
    9.
    发明授权
    Carbon nanorings manufactured from templating nanoparticles 失效
    由纳米颗粒制成的碳纳米管

    公开(公告)号:US07887771B2

    公开(公告)日:2011-02-15

    申请号:US11539120

    申请日:2006-10-05

    摘要: Methods for manufacturing carbon nanostructures include 1) forming intermediate carbon nanostructures by polymerizing a carbon precursor in the presence of templating nanoparticles, 2) carbonizing the intermediate carbon nanostructures to form an intermediate composite nanostructure, and 3) removing the templating nanoparticles from the intermediate composite nanostructure to form carbon nanorings. The carbon nanorings manufactured using the foregoing steps have one or more carbon layers forming a wall that defines a generally annular nanostructure having a hole. The length of the nanoring is less than or about equal to the outer diameter thereof. The carbon nanostructures are well-suited for use as a fuel cell catalyst support. The carbon nanostructures exhibit high surface area, high porosity, high graphitization, and facilitate mass transfer and electron transfer in fuel cell reactions. Carbon nanorings manufactured according to the present invention can be used as a substitute for more expensive and likely more fragile carbon nanotubes.

    摘要翻译: 制造碳纳米结构的方法包括:1)通过在模板纳米粒子存在下聚合碳前体形成中间碳纳米结构,2)将中间碳纳米结构碳化,形成中间复合纳米结构,和3)从中间复合纳米结构中去除模板纳米粒子 以形成碳纳米管。 使用上述步骤制造的碳纳米管具有形成壁的一个或多个碳层,所述壁限定具有孔的大致环形的纳米结构。 纳米的长度小于或等于其外径。 碳纳米结构非常适合用作燃料电池催化剂载体。 碳纳米结构表现出高表面积,高孔隙率,高石墨化,并促进燃料电池反应中的传质和电子传递。 根据本发明制造的碳纳米管可以用作更昂贵和可能更脆弱的碳纳米管的替代物。