摘要:
A membrane electrode assembly, comprising at least two electrochemically active electrodes which are separated by at least on polymer electrolyte membrane, wherein the polymer electrolyte membrane has reinforcing elements which penetrate the polymer electrolyte membrane at least partially.The membrane electrode assembly is preferably obtained by a method in which (i) a polymer electrolyte membrane is formed in the presence of the reinforcing elements, (ii) the membrane and the electrodes are assembled in the desired order. The membrane electrode assembly is particularly suited for applications in fuel cells.
摘要:
A gripper for conveying a sheet through a printing machine makes it possible to increase speed. The gripper includes gripper fingers with finger tips disposed at a rotary articulation or joint.
摘要:
The present invention relates to the use of compounds of formula (I), wherein R is C1-C8-alkyl, unsubstituted or substituted with 1, 2 or 3 radicals selected from the group consisting of halogen, amino, nitro, cyano, C1-C4-alkenyl, C1-C4-haloalkenyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylthio, 5- to 10-membered heteroaryl containing as ring members 1, 2, 3 or 4 heteroatoms selected from oxygen, sulfur and nitrogen, and phenyl, wherein the heteroaryl and phenyl radicals may be substituted for the control of nematodes, a method for the control of nematodes, and a method for the protection of plants from infestation or attack by nematodes.
摘要:
The present invention relates to a membrane electrode unit having two gas diffusion layers, each contacted with a catalyst layer, which are separated by a polymer electrolyte membrane, wherein the polymer electrolyte membrane has an inner area which is contacted with a catalyst layer, and an outer area which is not provided on the surface of a gas diffusion layer, characterized in that the thickness of the inner area of the membrane decreases over a period of 10 minutes by at least 5% at a pressure of 5 N/mm2 and the thickness of the membrane in the outer area is greater than the thickness of the inner area of the membrane.
摘要翻译:本发明涉及一种具有两个气体扩散层的膜电极单元,每个气体扩散层与催化剂层接触,由聚合物电解质膜隔开,其中聚合物电解质膜具有与催化剂层接触的内部区域, 未设置在气体扩散层的表面上的外部区域,其特征在于,膜的内部区域的厚度在5N / mm 2的压力下在10分钟内降低至少5% 2,外部区域中的膜的厚度大于膜的内部区域的厚度。
摘要:
The invention relates to a single fuel cell, comprising a) at least two electrochemically active electrodes, separated by a polymer electrolyte membrane and b) at least two separator plates, having at least one respective gas channel for reaction gases, whereby at least one separator plate is composed of glassy carbon. Said invention also relates to methods for producing said single fuel cell as well as to fuel cells, comprising such a single fuel cell.
摘要:
The present invention relates to a proton-conducting polymer membrane coated with a catalyst layer, said polymer membrane comprising polymers which comprise phosphonic acid groups and are obtainable by polymerizing monomers comprising phosphonic acid groups, characterized in that the catalyst layer comprises ionomers which comprise phosphonic acid groups and are obtainable by polymerizing monomers comprising phosphonic acid groups.
摘要:
The present invention relates to a process for preparing 3-phenyl(thio)uracils and -dithiouracils of the formula I where the variables are each as defined in the description, and also intermediates for their preparation.
摘要:
A charging arrangement for a baking oven (8) is provided with a supply arrangement (9) for dough pieces (4) and a lifting and delivery device (34) for the dough pieces (4). The supply arrangement (9) is provided with a charging inlet, at least one supply bin (10, 23) and a supply outlet arranged underneath the charging inlet. A delivery inlet portion (37) of the lifting and delivery device (34) that is located at the bottom is in delivery engagement with the outlet of the supply arrangement under the influence of gravity. A baking system (1) with such a charging arrangement (9) can be easily operated and does not require the continuous presence of an operator. Furthermore, it can have an optically attractive design.
摘要:
The present invention relates to a process for preparing sulfamoyl halides of primary or secondary amines, comprising the following steps: i) reacting a primary or secondary amine A1 with at least equimolar amounts of SO3 or an SO3 source in the presence of at least equimolar amounts of a tertiary amine A2, based in each case on the amine A1, and ii) reacting the reaction mixture obtained in step i) with at least the amount of a phosphorus halide required by the stoichiometry; The invention further relates to a process for preparing sulfonic diamides, comprising the preparation of sulfamoyl halides by means of carrying out steps i) and ii) and subsequently reacting the sulfamoyl halide obtained with ammonia. The invention further relates to the use of this process for preparing active herbicidal ingredients having a sulfuric diamide structure. The invention further relates to novel sulfamoyl chlorides.
摘要:
A device for winding wire, cable or other winding material includes a device stand with a wobble drive generating a wobbling motion about a vertical axis, a supporting stand is connected to the wobble drive such that, first pivot bearings of the wobble drive are attached to the front face of the device stand and, second pivot bearings are attached to the supporting stand and the pivot bearings are connected to one another by crank arms, wherein the wobbling motion can be transmitted to the supporting stand such that the supporting stand performs a wobbling motion relative to the device stand, that the supporting stand has the winding device for the winding material attached to it such that the wobbling motion can be transmitted to the winding device, that the winding material can be deposited in the collecting device using the winding device which performs the wobbling motion.