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    • 12. 发明授权
    • Method for determining diffusion and/or transfer coefficients of a material
    • 用于确定材料的扩散和/或传递系数的方法
    • US08368411B2
    • 2013-02-05
    • US12452994
    • 2008-07-28
    • Mihails KusnezoffSteffen ZiescheAnne Paepke
    • Mihails KusnezoffSteffen ZiescheAnne Paepke
    • G01R27/08G01N27/02
    • G01N27/407G01N7/10G01N27/041G01N27/4074G01N2013/003
    • The invention relates to a method for the determination of diffusion coefficients and/or exchange coefficient of a material having electronic and ionic conductivity. The material is permeable to at least one gas. It is the object of the invention to provide a cost-effective, accurate method for the determination of the diffusion coefficient and of the surface exchange coefficient which can be carried out in a short time and can thus be used for a screening of materials, in particular for application in the field of permeation membranes. The procedure is followed in accordance with the invention such that a sample of the material is arranged in a measurement chamber and has an electric current passed through it for a determination of the electric resistance. In this respect, a gas mixture in which the respective gas is contained is conducted through the measurement chamber as a gas flow and the partial pressure of the respective gas in the gas mixture is changed periodically at regular intervals. The change in the electric resistance of the sample is measured and a diffusion coefficient and/or exchange coefficient of the material can be determined for the respective gas from the determined change in the electric resistance.
    • 本发明涉及一种用于确定具有电子和离子电导率的材料的扩散系数和/或交换系数的方法。 该材料对至少一种气体是可渗透的。 本发明的目的是提供一种用于确定扩散系数和表面交换系数的成本有效的精确方法,该方法可在短时间内进行,因此可用于材料的筛选 特别适用于渗透膜领域。 按照本发明,遵循本发明的方法,将材料样品布置在测量室中,并且具有通过它的电流以确定电阻。 在这方面,其中容纳有各自气体的气体混合物作为气流被传导通过测量室,并且气体混合物中的各个气体的分压以规则的间隔周期性地改变。 测量样品的电阻的变化,并且可以根据确定的电阻变化来确定各气体的材料的扩散系数和/或交换系数。
    • 14. 发明授权
    • High-temperature fuel cell system
    • 高温燃料电池系统
    • US08512901B2
    • 2013-08-20
    • US13381568
    • 2010-06-24
    • Mihails KusnezoffSebastian Reuber
    • Mihails KusnezoffSebastian Reuber
    • H01M8/06
    • H01M8/0618C01B3/384C01B3/386C01B2203/0233C01B2203/0261C01B2203/067C01B2203/0805H01M8/04007H01M8/04097H01M8/04365H01M8/04619H01M8/04753H01M8/04761H01M8/04776H01M8/0625H01M8/0637H01M8/12Y02E60/566Y02E70/20
    • The invention relates to a high-temperature fuel cell system which can be operated with at least one hydrocarbon compound, preferably with methane or a gas containing methane such as natural gas or biogas. It is the object of the invention to increase the efficiency of high-temperature fuel cell systems and to allow a more flexible operation. In the system in accordance with the invention, individual fuel cells are present which are connected electrically in series and form the stacks. The stacks are flowed through after one another by fuel gas which contains hydrogen and which flows into a first stack of the system from a reformer and a suitable hydrocarbon compound is supplied via further connection lines in the flow direction of the introduced fuel gas sequentially into further stacks to the respective stack for a direct internal reforming of a hydrocarbon compound at anodes of the fuel cells of the stack and air is supplied as an oxidation means at the cathode side to the individual fuel cells of the system.
    • 本发明涉及一种高温燃料电池系统,其可与至少一种烃化合物一起操作,优选用甲烷或含有天然气或沼气的甲烷的气体操作。 本发明的目的是提高高温燃料电池系统的效率并允许更灵活的操作。 在根据本发明的系统中,存在单独的燃料电池,它们串联电连接并形成堆叠。 堆叠通过包含氢的燃料气体彼此流动,并且从重整器流入系统的第一堆叠中,并且合适的烃化合物通过进一步的连接管线沿引入的燃料气体的流动方向顺序地进一步供给 在堆叠和空气的燃料电池的阳极处将碳氢化合物的直接内部重整作为氧化装置在阴极侧供应到各个燃料电池单体的堆叠。