Method for manufacturing nanostructured manganese oxide having dendritic structure, and oxygen reduction electrode comprising nanostructured transition metal oxide having dendritic structure
    22.
    发明授权
    Method for manufacturing nanostructured manganese oxide having dendritic structure, and oxygen reduction electrode comprising nanostructured transition metal oxide having dendritic structure 有权
    具有树枝状结构的纳米结构氧化锰的制造方法,具有树状结构的纳米结构过渡金属氧化物的氧还原电极

    公开(公告)号:US07566438B2

    公开(公告)日:2009-07-28

    申请号:US11219714

    申请日:2005-09-07

    IPC分类号: C01G45/00

    摘要: An object of the present invention is to provide an oxygen reduction electrode having excellent oxygen reduction properties (oxygen reduction catalyst abilities).The present invention encompasses: (1) A method for manufacturing a nanostructured manganese oxide having a dendritic structure formed from an agglomeration of primary particles, wherein the method comprises the steps of: removing components from a target plate that comprises one or more kinds of manganese oxides by irradiating the target plate with laser light in an atmosphere comprising a mixed gas of inert gas and oxygen gas, the content of the oxygen gas in the mixed gas being no less than 0.05% but no more than 0.5% as measured by mass flow rate; and depositing the removed components on a substrate that is opposed to the target plate substantially in parallel to obtain the nanostructured manganese oxide, and (2) an oxygen reduction electrode comprising a nanostructured transition metal oxide having a dendritic structure formed from an agglomeration of primary particles.

    摘要翻译: 本发明的目的是提供具有优异的氧还原性(氧还原催化剂能力)的氧还原电极。 本发明包括:(1)一种具有由一次粒子附聚形成的树枝状结构的纳米结构氧化锰的制造方法,其特征在于,包括以下步骤:从含有一种或多种锰的靶板中除去成分 氧化物通过在包含惰性气体和氧气的混合气体的气氛中用激光照射靶板,混合气体中的氧气含量通过质量流量测量为不小于0.05%但不大于0.5% 率; 并且将去除的组分沉积在基本上平行于靶板的基板上,以获得纳米结构的氧化锰,和(2)氧还原电极,其包含具有由一次粒子的聚集形成的树状结构的纳米结构过渡金属氧化物 。

    Porous material and method for manufacturing same, and electrochemical element made using this porous material
    24.
    发明授权
    Porous material and method for manufacturing same, and electrochemical element made using this porous material 有权
    多孔材料及其制造方法,使用该多孔材料制成的电化学元件

    公开(公告)号:US07390474B2

    公开(公告)日:2008-06-24

    申请号:US10834078

    申请日:2004-04-29

    IPC分类号: C01B31/02

    摘要: Conventional porous carbon materials obtained by carbonizing an organic gel were prone to shrinkage during their manufacture, in the course of which the density rose and the specific surface area decreased. Another problem was that density and specific surface area were difficult to control after an organic gel had already been formed. In the present invention, a carbon material with a large specific surface area is formed by forming a composite porous material having a reticulated skeleton and composed of a dry gel of an inorganic oxide, and taking advantage of the reaction of this dry gel of an inorganic oxide as a structural support. In one method, a carbon material is formed in this reticulated skeleton in a state in which the characteristics of a dry gel of an inorganic oxide with a large specific surface area are maintained. In another method, the specific surface area of a carbon material is further increased by removing the inorganic oxide of the reticulated skeleton in which the carbon material was formed.

    摘要翻译: 通过碳化有机凝胶获得的常规多孔碳材料在其制造过程中容易收缩,其中密度升高并且比表面积减小。 另一个问题是在已经形成有机凝胶之后,密度和比表面积难以控制。 在本发明中,通过形成具有网状骨架并由无机氧化物的干凝胶构成的复合多孔材料形成具有大比表面积的碳材料,并利用该无机无机干凝胶的反应 氧化物作为结构载体。 在一种方法中,在保持比表面积大的无机氧化物的干凝胶的特性的状态下,在该网状骨架中形成碳材料。 在另一种方法中,通过除去其中形成碳材料的网状骨架的无机氧化物,进一步提高了碳材料的比表面积。

    Electrochemical electrode using nickel-containing nanostructured material having dendritic structure as active layer, and method for producing the same
    25.
    发明申请
    Electrochemical electrode using nickel-containing nanostructured material having dendritic structure as active layer, and method for producing the same 有权
    使用具有树枝状结构的含镍纳米结构材料作为活性层的电化学电极及其制造方法

    公开(公告)号:US20070037055A1

    公开(公告)日:2007-02-15

    申请号:US11500363

    申请日:2006-08-08

    IPC分类号: H01M4/52 B05D5/12

    摘要: The present invention provides an electrochemical electrode wherein transition metal (nickel) nanoparticles are used to form an active layer having a large surface area without using a conductive support while maintaining dispersibility and stability, and a method for producing the same. The present invention provides an electrochemical electrode having a conductive substrate and an active layer formed on the conductive substrate, wherein (1) the active layer has a nickel-containing nanostructured material having a dendritic structure formed by agglomerating a plurality of primary particles, and (2) each primary particle has a core and a shell surrounding the core wherein the core is formed of a nickel nanocrystal and the shell is formed of a nickel oxide film; and the present invention also provides a method for producing such an electrochemical electrode comprising: Step 1 of obtaining nickel nanocrystal particles, Step 2 of obtaining primary particles by forming a nickel oxide film on the surface of each nickel nanocrystal particle, and Step 3 of forming a dendritic structure by agglomerating a plurality of the primary particles by depositing the primary particles substantially perpendicular to a conductive substrate.

    摘要翻译: 本发明提供了一种电化学电极及其制造方法,其中使用过渡金属(镍)纳米颗粒形成具有大表面积的活性层而不使用导电载体,同时保持分散性和稳定性。 本发明提供一种电化学电极,其具有形成在导电性基板上的导电性基板和有源层,其中,(1)活性层具有通过使多个一次粒子附聚而形成的树枝状结构的含镍纳米结构材料,( 2)每个初级颗粒具有芯和围绕芯的壳,其中芯由镍纳米晶体形成,壳由氧化镍膜形成; 本发明还提供一种电化学电极的制造方法,其特征在于,具有:获得镍纳米晶粒子的工序1,在每个镍纳米晶粒子的表面形成氧化镍膜得到一次粒子的工序2, 通过使基本上垂直于导电基底的一次粒子沉积而使多个初级粒子聚集的树枝状结构。

    Oxygen reduction electrode and electrochemical element using same
    28.
    发明申请
    Oxygen reduction electrode and electrochemical element using same 审中-公开
    氧还原电极和电化学元件使用相同

    公开(公告)号:US20050153198A1

    公开(公告)日:2005-07-14

    申请号:US11004898

    申请日:2004-12-07

    摘要: Methods of effectively utilizing yeast-containing waste products generated after yeast use can be applied to absorbing agents, drying agents, soil conditioners, catalysts, and other common applications in the same manner as to charcoal-based materials of other materials by carbonizing the waste product, but a new search was needed in order to broaden the industrial utilization of these products. By supporting a particulate or powdered charcoal-based material obtained by carbonizing a yeast-containing material on an electrically conductive gas-permeable base, an electrode can be obtained that is capable of the electrochemical reduction of oxygen. The present charcoal-based material can provide new applications that have not been hitherto proposed, in the sense that oxygen can be electrochemically reduced smoothly and at a small overvoltage (resistance), and a large electromotive force can be obtained, by placing the charcoal-based material at the intersection of the ion path and the oxygen path.

    摘要翻译: 酵母使用后产生的酵母含有废弃物的方法可以以与其他材料的炭基材料相同的方式应用于吸收剂,干燥剂,土壤调理剂,催化剂和其它常用应用,方法是将废物碳化 ,但是为了扩大这些产品的工业利用率,需要进行新的搜索。 通过在导电性透气性基底上含有通过将含酵母的材料碳化而获得的颗粒状或粉末状的炭系材料,能够得到能够进行电化学还原氧的电极。 本发明的炭基材料可以提供迄今为止尚未提出的新应用,在这种意义上,氧可以通过电化学方式平滑地并且以小的过电压(电阻)降低,并且可以获得大的电动势,通过将炭 - 在离子路径和氧气路径的交点处的基体材料。

    FUEL CELL COMPRISING OXYGEN ELECTRODE WITH SURFACE NANOSTRUCTURE
    29.
    发明申请
    FUEL CELL COMPRISING OXYGEN ELECTRODE WITH SURFACE NANOSTRUCTURE 审中-公开
    含有表面纳米结构的氧电极的燃料电池

    公开(公告)号:US20100104915A1

    公开(公告)日:2010-04-29

    申请号:US12652468

    申请日:2010-01-05

    IPC分类号: H01M8/10

    摘要: The present invention is aimed to realize, in a fuel cell with an oxygen electrode (a catalytic electrode), both catalytic function and immobilization of the catalyst nanoparticles when the catalyst nanoparticles are very small nanoparticles in the size of 1-3 nm.Oxygen electrode used in the fuel cell according to the present invention is an oxygen electrode comprising a plurality of carbon particles, a carbon thin-film, and surface nanostructure, wherein the carbon particles are bonded to one another with the carbon thin-film 2, the surface nanostructure is formed on the surface of the carbon thin-film, the surface nanostructure comprises catalyst nanoparticles made of platinum (Pt) and carbon nanoparticles, diameter of each of the carbon particles is 30 nm or more and 100 nm or less, diameter of the catalyst nanoparticle is 1.7 nm or more and 3.1 nm or less, and diameter of the carbon nanoparticle is 1.0 nm or more and 11.2 nm or less. According to this combination of these elements, the catalyst nanoparticles are confined within three-dimensional structure to be formed by the carbon nanoparticles and are immobilized without losing space which allows any reactant to be accessed to the surface of the catalyst nanoparticles.

    摘要翻译: 本发明旨在在具有氧电极(催化电极)的燃料电池中实现催化剂纳米颗粒在1-3nm尺寸的非常小的纳米颗粒时催化剂纳米颗粒的催化功能和固定。 根据本发明的燃料电池中使用的氧电极是包含多个碳颗粒,碳薄膜和表面纳米结构的氧电极,其中碳颗粒通过碳薄膜2彼此接合, 在碳薄膜的表面上形成表面纳米结构,表面纳米结构包括由铂(Pt)和碳纳米颗粒制成的催化剂纳米颗粒,每个碳颗粒的直径为30nm以上至100nm以下,直径 的催化剂纳米粒子的粒径为1.7nm以上且3.1nm以下,碳纳米粒子的直径为1.0nm以上且11.2nm以下。 根据这些元素的这种组合,催化剂纳米颗粒被限制在由碳纳米颗粒形成的三维结构内,并且被固定化而不会损失允许任何反应物进入催化剂纳米颗粒表面的空间。