Metal Porphyrin Catalyzed Olefin Aziridination with Sulfonyl Azides
    61.
    发明申请
    Metal Porphyrin Catalyzed Olefin Aziridination with Sulfonyl Azides 审中-公开
    金属卟啉用磺酰叠氮化物催化烯化氮丙啶化

    公开(公告)号:US20110112288A1

    公开(公告)日:2011-05-12

    申请号:US12935309

    申请日:2009-03-31

    IPC分类号: C07F15/06 C07D203/24

    摘要: Cobalt(II) complex of P1 [Co(P1)], a new porphyrin that was designed on the basis of potential hydrogen bonding interactions in the metal-nitrene intermediate, is a highly active catalyst for olefin aziridination with azides. The [Co(P1)]-based system can be effectively employed for different combinations of aromatic olefins and arysulfonyl azides, synthesizing various sulfonylated aziridines in excellent yields. Besides its mild catalytic conditions, the Co-catalyzed aziridination process enjoys several attributes associated with the relatively low cost of cobalt and widely accessible arylsulfonyl azides. Furthermore, it generates stable dinitrogen as the only by-product.

    摘要翻译: 基于金属 - 硝酸中间体中潜在的氢键相互作用而设计的新的卟啉P1 [Co(P1)]的钴(II)络合物是用于与叠氮化物进行烯烃氮丙啶化的高活性催化剂。 基于[Co(P1)]的系统可以有效地用于芳族烯烃和芳磺酰叠氮化物的不同组合,以优异的产率合成各种磺酰化氮丙啶。 除了其温和的催化条件之外,共催化的氮丙啶化方法具有与钴和可广泛使用的芳基磺酰基叠氮化物相对低的成本相关的几个属性。 此外,它产生稳定的二氮作为唯一的副产物。

    Self Supporting Structurally Engineered Non-Platinum Electrocatalyst for Oxygen Reduction in Fuel Cells
    62.
    发明申请
    Self Supporting Structurally Engineered Non-Platinum Electrocatalyst for Oxygen Reduction in Fuel Cells 有权
    自支撑结构工程非铂电催化剂燃料电池中的氧还原

    公开(公告)号:US20080312073A1

    公开(公告)日:2008-12-18

    申请号:US11872836

    申请日:2007-10-16

    IPC分类号: B05D5/12 C07D487/22 B01J31/12

    摘要: A highly dispersed, unsupported, electrocatalyst made of pyrolyzed porphyries and a method for synthesizing the same. The disclosed synthesis procedure allows for optimization of pore size and therefore transport properties. Compounds suitable for use include transition metal N4-chelates such as, but not necessarily limited to, N4-chelates containing different metal centers including Co, Fe, Mn, Ni, Ru, Cu, etc., and other N4-chelates such as porphyrin, phthalocyanies, and structures based on their pyro products.

    摘要翻译: 由热解斑斑形成的高度分散,无支撑的电催化剂及其合成方法。 所公开的合成方法允许优化孔径并因此优化输送性质。 适合使用的化合物包括过渡金属N 4 - 螯合物,例如但不一定限于含有不同金属中心的包括Co,Fe,Mn,Ni,Ru,Cu等的N 4 - 螯合物和其它N 4 - 螯合物如卟啉 ,酞菁,以及基于其产品的结构。

    Peroxide Decomposition Catalyst
    63.
    发明申请
    Peroxide Decomposition Catalyst 有权
    过氧化物分解催化剂

    公开(公告)号:US20080219916A1

    公开(公告)日:2008-09-11

    申请号:US11993892

    申请日:2006-06-20

    IPC分类号: C01B13/00 C07F13/00 G01N33/44

    摘要: An object of the present invention is to provide a catalyst which decomposes a peroxide effectively and economically under a high temperature while suppressing generation of free radicals, and the present invention provides a peroxide decomposition catalyst containing a base metal atom, wherein a value A indicating a free radical generation amount represented by the (equation 1) is not more than 0.20, and a value B indicating a reaction rate represented by the (equation 2), which can be easily applied to utility such as an agent for preventing deterioration of a polymer electrolyte-type fuel cell and a water electrolysis apparatus, and an antioxidant for medicaments, agrochemicals and foods. A=(Mw(S)/Mw)−1   (equation 1) (wherein Mw is a weight average molecular weight of poly(sodium 4-styrenesulfonate) after a hydrogen peroxide decomposition test in the test at 80° C. in the presence of poly(sodium 4-styrenesulfonate), and Mw(S) is a weight average molecular weight of poly(sodium 4-styrenesulfonate) before the test) B=N(PO)/N(cat)   (equation 2) (wherein N(po) is a mole number of hydrogen peroxide decomposed per 20 minutes in a hydrogen peroxide decomposition test in the (equation 1), and N(cat) is a mole number per metal atom of a catalyst used)

    摘要翻译: 本发明的目的在于提供一种在高温下有效且经济地分解过氧化物同时抑制自由基产生的催化剂,本发明提供了含有贱金属原子的过氧化物分解催化剂,其中A表示 由(式1)表示的自由基产生量不大于0.20,表示由(式2)表示的反应速度的值B,其可以容易地应用于防止聚合物劣化的试剂 电解质型燃料电池和水电解装置,以及用于药物,农药和食品的抗氧化剂。 A =(Mw(S)/ Mw)-1(等式1)<?in-line-formula description =“In-line-formula description =”In-line-formula description = (式中,Mw是在80℃下在聚(4-苯乙烯磺酸钠)存在下的过氧化氢分解试验后的聚(4-苯乙烯磺酸钠)的重均分子量, 苯乙烯磺酸盐),Mw(S)是测试前的聚(4-苯乙烯磺酸钠)的重均分子量)<?在线公式描述=“在线公式”end =“lead”→> B = N(PO)/ N(cat)(式2)<?in-line-formula description =“In-line Formulas”end =“tail”?>(其中N(po)是每分解的过氧化氢的摩尔数 (式1)中的过氧化氢分解试验为20分钟,N(cat)为所用催化剂的每个金属原子的摩尔数)

    Catalyst and method for its manufacture
    68.
    发明申请
    Catalyst and method for its manufacture 有权
    催化剂及其制造方法

    公开(公告)号:US20050221975A1

    公开(公告)日:2005-10-06

    申请号:US11035172

    申请日:2005-01-13

    IPC分类号: B01J31/00

    摘要: A catalyst is synthesized by a method in which a catalytic metal such as platinum or another noble metal is dispersed onto a support member. A transition metal macrocycle is also adsorbed onto the support, and the support is heat treated so as to at least partially pyrolyze the macrocycle and anchor the transition metal to the support. The catalytic metal is alloyed with the transition metal either during the pyrolysis step, or in a separate step. The catalyst has significant utility in a variety of applications including use as an oxygen reduction catalyst in fuel cells.

    摘要翻译: 通过催化金属如铂或其它贵金属分散在支撑体上的方法合成催化剂。 过渡金属大环也被吸附到载体上,并且支持体进行热处理,以便至少部分地热解大循环并将过渡金属锚定到载体上。 在热解步骤期间或在单独的步骤中,催化金属与过渡金属合金化。 催化剂在各种应用中具有显着的用途,包括用作燃料电池中的氧还原催化剂。