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    • 7. 发明专利
    • Electron transfer mediator modification enzyme electrode, and biological fuel cell equipped with this
    • 电子转移介质修改酶电极和与此配套的生物燃料电池
    • JP2008071584A
    • 2008-03-27
    • JP2006248206
    • 2006-09-13
    • Kyoto UnivToyota Motor Corpトヨタ自動車株式会社国立大学法人京都大学
    • KATO HISAONISHIGORI HIDETAKAKANO KENJITSUJIMURA SEIYA
    • H01M8/16G01N27/327H01M4/86
    • C12Q1/004C12Q1/006
    • PROBLEM TO BE SOLVED: To provide an electron transfer mediator modification enzyme electrode capable of obtaining high current density and stable electrode performance by covalent bonding an electron transfer mediator through a specific spacer on the surface of a conductive base material constituting an electrode, and to provide a biological fuel cell equipped with the same. SOLUTION: In the electron transfer mediator modification enzyme electrode provided with a conductive base material connected with an external circuit, an oxidoreductase capable of transferring electron with the conductive base material, and an electron transfer mediator capable of mediating electron transfer between the conductive base material and the oxidoreductase, the electron transfer mediator is covalent bonded on the surface of the conductive base material through the spacer containing at least a direct-chain structure, and the biological fuel cell is provided with the electron transfer mediator modification enzyme electrode. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种电子转移介质修饰酶电极,其能够通过电子转移介体通过在构成电极的导电性基材的表面上的特定间隔物共价键来获得高电流密度和稳定的电极性能, 并提供配备有该燃料电池的生物燃料电池。 解决方案:在具有与外部电路连接的导电基材的电子转移介质修饰酶电极中,能够与导电性基体材料一起转移电子的氧化还原酶,以及能够介导导电性的电子转移的电子转移介体 基质材料和氧化还原酶,电子转移介体通过至少含有直链结构的间隔物共价结合在导电性基材的表面上,生物燃料电池配置有电子转移介质修饰酶电极。 版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Enzyme electrode, and biofuel cell equipped with it
    • ENZYME ELECTRODE,和BIOFUEL CELL EQUIPPED WITH IT
    • JP2008177088A
    • 2008-07-31
    • JP2007010310
    • 2007-01-19
    • Toyota Motor Corpトヨタ自動車株式会社
    • NISHIGORI HIDETAKAKATO HISAOKANO KENJITSUJIMURA SEIYA
    • H01M8/16
    • Y02E60/527
    • PROBLEM TO BE SOLVED: To provide an enzyme electrode capable of extracting a high-density current by immobilizing a sufficient quantity of enzyme and an electron mediator on an electrode surface in a state suitable for electron transport among enzyme, the electron mediator and the electrode; and a biofuel cell equipped with the enzyme electrode and exerting excellent power generation performance. SOLUTION: This enzyme electrode includes an electrode, the enzyme, and the electron mediator mediating electron transmission between the electrode and the enzyme. The enzyme electrode is composed by alternately stacking first charged layers containing the enzyme and the electron mediator and positively or negatively charged, and second charged layers charged in polarity reverse to that of the first charged layer on the electrode surface formed of a conductor, and is structured such that, in the first charged layer, the enzyme and the electron mediator form molecular orbits between the same organic polymer and themselves, and are chemically connected to each other. This biofuel cell has the enzyme electrode. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够通过在酶,电子介体和电子介体中适合于电子传输的状态下将足够量的酶和电子介体固定在电极表面上来提取高密度电流的酶电极 电极; 配备有酶电极的生物燃料电池,发挥出色的发电性能。 解决方案:该酶电极包括介导电极和酶之间的电子传递的电极,酶和电子介体。 酶电极通过交替堆叠含有酶和电子介体的带正电荷或带负电荷的第一带电层和与由导体形成的电极表面上的第一带电层的极性相反的第二带电层,并且是 结构化使得在第一带电层中,酶和电子介体在相同的有机聚合物和它们之间形成分子轨道,并且彼此化学连接。 该生物燃料电池具有酶电极。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Cathode catalyst for fuel cell
    • 用于燃料电池的CATHODE催化剂
    • JP2005129358A
    • 2005-05-19
    • JP2003363734
    • 2003-10-23
    • Cataler CorpToyota Motor Corpトヨタ自動車株式会社株式会社キャタラー
    • ITO TETSUOTERADA TOMOAKIKATO HISAONAGAMI TETSUO
    • B01J21/18B01J23/89H01M4/90H01M4/92H01M8/10
    • H01M4/921B01J21/18B01J23/8906B01J23/8993C22C5/04H01M4/926
    • PROBLEM TO BE SOLVED: To provide a cathode catalyst for a fuel cell which contains platinum and iron that are capable of maintaining durability of a cell and are capable of making the cell have a high output. SOLUTION: This is a cathode catalyst for the fuel cell which comprises a carrying layer composed of an alloy containing platinum, iron, and furthermore one kind or more of elements out of tungsten, titanium, molybdenum, rhenium, zinc, manganese, tin, tantalum, and rhodium that are third components having affinity with iron, and a carrier carrying the carrying layer. The catalyst using the alloy containing platinum and iron can make the cell have a high output. By making the alloy containing platinum and iron an alloy that contains one kind or more of elements out of third components having affinity with iron, elution of iron into the electrolyte can be prevented. COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决的问题:提供一种能够维持电池的耐久性并且能够使电池具有高输出量的含有铂和铁的燃料电池用阴极催化剂。 解决方案:这是一种用于燃料电池的阴极催化剂,其包括由含有铂,铁以及另外一种或多种钨,钛,钼,铼,锌,锰等元素的合金构成的载体层, 作为与铁具有亲和性的第三成分的锡,钽和铑以及承载层的载体。 使用含有铂和铁的合金的催化剂可以使电池具有高产量。 通过使含有铂和铁的合金是含有与铁具有亲和性的第三成分中的一种以上的元素的合金,可以防止铁向电解液中的溶出。 版权所有(C)2005,JPO&NCIPI
    • 10. 发明专利
    • Noble metal-base metal alloy based catalyst, its evaluation and method for manufacturing it
    • 贵金属基金属合金催化剂,其评估及制造方法
    • JP2003045442A
    • 2003-02-14
    • JP2001235958
    • 2001-08-03
    • Toyota Motor Corpトヨタ自動車株式会社
    • KATO HISAOASAOKA MASAHIKOHIROSHIMA KAZUTAKA
    • B01J37/025H01M4/86H01M4/88H01M4/90H01M4/92H01M8/02H01M8/04H01M8/10
    • H01M4/881H01M4/8605H01M4/92H01M4/926H01M8/1004Y02P70/56
    • PROBLEM TO BE SOLVED: To manufacture a fuel cell having high performance by accurately and simply evaluating the performance of the fuel cell. SOLUTION: Iron is reduced by carrying platinum as one of noble metals and iron as one of base metals on carbon having a large specific surface, and by heating the iron to a reducible temperature. A platinum-iron alloy based electrode catalyst thus obtained has a high function as a catalyst, and the IR correction voltage of a fuel cell manufactured by using it is high. This kind of electrode catalyst is a new catalyst and can be specified by numerical values, such as the adsorption quantity of carbon monoxide which is 14 Ncc or more per 1 gram of platinum, the ratio of the number of Pt atoms to the number of Fe atoms by EDX analysis which is 0.14 or more, or the ratio of the number of coupling of both atoms by EXAFS analysis which is 0.1 or more. The electrode catalyst can be evaluated with these numerical values, and the fuel cell having high performance can be manufactured by manufacturing by using the evaluation result.
    • 要解决的问题:通过准确且简单地评估燃料电池的性能来制造具有高性能的燃料电池。 解决方案:通过将铂作为贵金属之一和作为具有大比表面积的碳上的贱金属之一的铁,并通过将铁加热至可还原温度来还原铁。 由此获得的铂 - 铁合金基电极催化剂作为催化剂具有高功能,并且通过使用它制造的燃料电池的IR校正电压高。 这种电极催化剂是一种新的催化剂,可以通过数值来表示,例如每1克铂为14Ncc以上的一氧化碳的吸附量,Pt原子数与Fe的比例 原子通过EDX分析为0.14以上,或通过EXAFS分析的两个原子的偶合数比例为0.1以上。 可以用这些数值评价电极催化剂,通过使用评价结果可以制造具有高性能的燃料电池。