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公开(公告)号：US5368717A
公开(公告)日：1994-11-29
申请号：US32959
申请日：1993-03-17
CPC分类号： C25D5/56 , H05K3/188 , H05K2201/0329
摘要： An electroplated element is formed to include an insulating substrate, a conducting polymer polymerized in situ on the substrate, and a metal layer deposited on the conducting polymer. In one application a circuit board is formed by polymerizing pyrrole on an epoxy-fiberglass substrate in a single step process and then electrodepositing a metal over the resulting polypyrrole polymer. No chemical deposition of the metal is required prior to electroplating and the resulting layer of substrate-polymer-metal has excellent adhesion characteristics. The metal deposition is surprisingly smooth and uniform over the relatively high resistance film of polypyrrole. A continuous manufacturing process is obtained by filtering the solution between successive substrates to remove polymer formed in the solution, by maintaining the solution oxidizing potential within selected limits, and by adding a strong oxidant, such as KMnO.sub.4 at periodic intervals to maintain a low sheet resistivity in the resulting conducting polymer film.
摘要翻译： 电镀元件形成为包括绝缘基板，在基板上原位聚合的导电聚合物和沉积在导电聚合物上的金属层。 在一个应用中，电路板是通过在环氧树脂 - 玻璃纤维基材上以一步法聚合吡咯然后在所得聚吡咯聚合物上电沉积金属形成的。 在电镀之前不需要金属的化学沉积，并且所得到的基底 - 聚合物 - 金属层具有优异的粘附特性。 金属沉积在聚吡咯的相对高的电阻膜上令人惊讶地平滑和均匀。 通过在连续的底物之间过滤溶液以除去在溶液中形成的聚合物，通过将溶液氧化势保持在选择的范围内，并且通过以周期性间隔加入强氧化剂如KMnO 4以保持低的薄层电阻率来获得连续的制造方法 在所得的导电聚合物膜中。
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公开(公告)号：US06635369B2
公开(公告)日：2003-10-21
申请号：US09862933
申请日：2001-05-22
IPC分类号： H01M800
CPC分类号： H01M8/043 , H01M8/04223 , H01M8/04238
摘要： A method is provided for operating a fuel cell at high voltage for sustained periods of time. The cathode is switched to an output load effective to reduce the cell voltage at a pulse width effective to reverse performance degradation from OH adsorption onto cathode catalyst surfaces. The voltage is stepped to a value of less than about 0.6 V to obtain the improved and sustained performance.
摘要翻译： 提供了用于在高电压下持续运行燃料电池的方法。 阴极被切换到有效地降低电池电压的输出负载，脉冲宽度有效地反转从OH吸附到阴极催化剂表面上的性能降解。 电压步进到小于约0.6V的值，以获得改进的和持续的性能。
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公开(公告)号：US07589047B1
公开(公告)日：2009-09-15
申请号：US11449407
申请日：2006-06-08
IPC分类号： B01J23/56
CPC分类号： H01M4/92 , H01M4/881 , H01M4/8828 , H01M4/925
摘要： A method of depositing noble metals on a metal hexaboride support. The hexaboride support is sufficiently electropositive to allow noble metals to deposit spontaneously from solutions containing ionic species of such metals onto the support. The method permits the deposition of metallic films of controlled thickness and particle size at room temperature without using separate reducing agents. Composite materials comprising noble metal films deposited on such metal hexaborides are also described. Such composite materials may be used as catalysts, thermionic emitters, electrical contacts, electrodes, adhesion layers, and optical coatings.
摘要翻译： 将贵金属沉积在金属六硼化物载体上的方法。 六硼化物载体具有足够的正电性，以使贵金属从含有这种金属的离子物质的溶液自发沉积到载体上。 该方法允许在室温下沉积受控厚度和粒度的金属膜，而不使用单独的还原剂。 还描述了包含沉积在这种金属六硼化物上的贵金属膜的复合材料。 这种复合材料可以用作催化剂，热电子发射体，电接触，电极，粘合层和光学涂层。
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公开(公告)号：US06818341B2
公开(公告)日：2004-11-16
申请号：US09848823
申请日：2001-05-03
IPC分类号： H01M490
CPC分类号： H01M4/926 , B01J21/18 , B01J23/72 , H01M4/8605 , H01M4/881 , H01M4/90 , H01M4/92 , H01M4/921 , H01M8/1004 , H01M2004/8684 , H01M2300/0082
摘要： A polymer electrolyte fuel cell (PEFC) is designed to operate on a reformate fuel stream containing oxygen and diluted hydrogen fuel with CO impurities. A polymer electrolyte membrane has an electrocatalytic surface formed from an electrocatalyst mixed with the polymer and bonded on an anode side of the membrane. An anode backing is formed of a porous electrically conductive material and has a first surface abutting the electrocatalytic surface and a second surface facing away from the membrane. The second surface has an oxidation catalyst layer effective to catalyze the oxidation of CO by oxygen present in the fuel stream where at least the layer of oxidation catalyst is formed of a non-precious metal oxidation catalyst selected from the group consisting of Cu, Fe, Co, Tb, W, Mo, Sn, and oxides thereof, and other metals having at least two low oxidation states.
摘要翻译： 聚合物电解质燃料电池（PEFC）设计用于在含有CO和稀释的氢燃料与CO杂质的重整燃料流上运行。 聚合物电解质膜具有由与聚合物混合并结合在膜的阳极侧上的电催化剂形成的电催化剂表面。 阳极背衬由多孔导电材料形成，并且具有邻接电催化表面的第一表面和背离膜的第二表面。 第二表面具有氧化催化剂层，其有效地催化存在于燃料流中的氧的CO氧化，其中氧化催化剂层至少由非贵金属氧化催化剂形成，所述非贵金属氧化催化剂选自Cu，Fe， Co，Tb，W，Mo，Sn及其氧化物，以及具有至少两种低氧化态的其它金属。
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