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1. 发明授权

US07032894B2 Flow distributor for monolith reactors 失效
公开(公告)号：US07032894B2
公开(公告)日：2006-04-25
申请号：US10013008
申请日：2001-11-05
申请人： George Y. Adusei , Stephen A. Campbell , Wei Liu , Mitchell E. Odinak , Shantanu Roy
发明人： George Y. Adusei , Stephen A. Campbell , Wei Liu , Mitchell E. Odinak , Shantanu Roy
IPC分类号： B01F3/04
CPC分类号： B01J19/2485 , B01J2219/185
摘要： A device for distributing fluid into a monolith bed includes a plurality of flow channels stacked in order of decreasing diameter. The flow channels successively split a flow stream into a multiple flow streams prior to the flow stream entering the monolith bed.

2. 发明授权

US06623707B1 Monolithic catalyst dehydrogenation reactor 失效
标题翻译：整体催化剂脱氢反应器
公开(公告)号：US06623707B1
公开(公告)日：2003-09-23
申请号：US09597888
申请日：2000-06-19
申请人： William P. Addiego , Stephen A. Campbell , Wei Liu , Mitchell E. Odinak
发明人： William P. Addiego , Stephen A. Campbell , Wei Liu , Mitchell E. Odinak
IPC分类号： C07C532
CPC分类号： B01J19/2485 , B01J8/0419 , B01J8/0453 , B01J8/0496 , B01J2208/00141 , B01J2208/00398 , B01J2208/00415 , C07C5/333 , C07C15/46
摘要： Axial flow dehydrogenation reactors comprising multiple catalyst beds formed of honeycomb monoliths, the beds being separated from each other by heating stages to maintain reactant stream temperature, provide low pressure drop and improved conversion efficiency when used alone or in combination with other reactors, e.g., as reactor upgrades for series reactor systems incorporating radial flow reactor stages.
摘要翻译：包括由蜂窝整料形成的多个催化剂床的轴流式脱氢反应器，通过加热阶段将床彼此分离以保持反应物流温度，当单独使用或与其它反应器组合使用时提供低压降和改善的转化效率，例如包括径流反应器级的串联反应器系统的反应堆升级。

3. 发明授权

US06896792B2 Method and device for improved catalytic activity in the purification of fluids 失效
标题翻译：用于改善流体净化中催化活性的方法和装置
公开(公告)号：US06896792B2
公开(公告)日：2005-05-24
申请号：US10167063
申请日：2002-06-11
申请人： Jean St-Pierre , David P. Wilkinson , Stephen A. Campbell
发明人： Jean St-Pierre , David P. Wilkinson , Stephen A. Campbell
IPC分类号： B01J23/42 , B01J38/00 , C25B3/02 , H01M8/06 , C25D17/00
CPC分类号： H01M8/0662
摘要： The activity of catalysts used in promoting the oxidation of certain oxidizable species in fluids can be enhanced via electrochemical methods, e.g., NEMCA. In particular, the activity of catalysts used in the selective oxidation of carbon monoxide can be enhanced. A purification system that exploits this effect is useful in purifying reformate supplied as fuel to a solid polymer electrolyte fuel cell stack. The purification system comprises an electrolytic cell with fluid diffusion electrodes. The activity of catalyst incorporated in the cell anode is enhanced.
摘要翻译：用于促进流体中某些可氧化物质氧化的催化剂的活性可以通过电化学方法例如NEMCA来增强。特别地，可以提高用于选择性氧化一氧化碳的催化剂的活性。利用这种效果的净化系统可用于将作为燃料提供的重整产物纯化成固体聚合物电解质燃料电池堆。净化系统包括具有流体扩散电极的电解池。加入到电池阳极中的催化剂的活性得到增强。

4. 发明授权

US06613464B1 Method and apparatus for reducing reactant crossover in a liquid feed electrochemical fuel cell 失效
标题翻译：用于减少液体进料电化学燃料电池中的反应物交换的方法和装置
公开(公告)号：US06613464B1
公开(公告)日：2003-09-02
申请号：US09255428
申请日：1999-02-22
申请人： David P. Wilkinson , Mark C. Johnson , Kevin M. Colbow , Stephen A. Campbell
发明人： David P. Wilkinson , Mark C. Johnson , Kevin M. Colbow , Stephen A. Campbell
IPC分类号： H01M800
CPC分类号： H01M4/926 , H01M4/86 , H01M4/8605 , H01M4/8626 , H01M4/96 , H01M8/0213 , H01M8/1004 , H01M8/1007 , H01M8/1009 , H01M2300/0082
摘要： In an electrochemical fuel cell, a sufficient quantity of catalyst, effective for promoting the reaction of reactant supplied to an electrode, is disposed within the volume of the electrode so that a reactant introduced at a first major surface of the electrode is substantially completely reacted upon contacting the second major surface. Crossover of reactant from one electrode to the other electrode through the electrolyte in an electrochemical fuel cell is thereby reduced.
摘要翻译：在电化学燃料电池中，在电极的体积内设置足够量的促进反应物供应到电极的催化剂，使得在电极的第一主表面上引入的反应基本上完全反应在接触第二主表面。因此，电化学燃料电池中通过电解质从一个电极到另一个电极的反应物交叉交叉。

5. 发明授权

US06475651B1 Method and apparatus for detecting transfer leaks in fuel cells 失效
标题翻译：用于检测燃料电池中的转移泄漏的方法和装置
公开(公告)号：US06475651B1
公开(公告)日：2002-11-05
申请号：US09628626
申请日：2000-07-31
申请人： David P. Wilkinson , Stephen A. Campbell
发明人： David P. Wilkinson , Stephen A. Campbell
IPC分类号： H01M804
CPC分类号： H01M8/04 , H01M8/04089
摘要： A method of detecting transfer leaks within a solid polymer electrolyte fuel cell stack comprises: supplying fuel or inert gas to the oxidant manifold(s) of the stack at a first pressure; supplying the other of fuel or inert gas to the fuel manifold(s) at a second pressure greater than or equal to the first pressure; optionally supplying fuel to the coolant manifold(s) at a third pressure; applying a potential difference across at least one of the fuel cell assemblies; and measuring the transfer current across the fuel cell assembly or assemblies. A corresponding apparatus detects transfer leaks within solid polymer electrolyte fuel cells stacks.
摘要翻译：检测固体聚合物电解质燃料电池堆内的转移泄漏的方法包括：在第一压力下将燃料或惰性气体供应到堆叠的氧化剂歧管; 以大于或等于第一压力的第二压力将燃料或惰性气体中的另一种供应到燃料歧管; 可选地在第三压力下向所述冷却剂歧管供应燃料; 在所述燃料电池组件中的至少一个上施加电势差; 并测量燃料电池组件或组件上的传输电流。相应的装置检测固体聚合物电解质燃料电池堆内的转移泄漏。

6. 发明授权

US06683011B2 Process for forming hafnium oxide films 有权
标题翻译：形成氧化铪膜的方法
公开(公告)号：US06683011B2
公开(公告)日：2004-01-27
申请号：US09992173
申请日：2001-11-14
申请人： Ryan C. Smith , Tiezhong Ma , Stephen A. Campbell , Wayne L. Gladfelter
发明人： Ryan C. Smith , Tiezhong Ma , Stephen A. Campbell , Wayne L. Gladfelter
IPC分类号： H01L21469
CPC分类号： H01L21/02181 , C23C16/405 , H01L21/02205 , H01L21/02271 , H01L21/28202 , H01L21/31604 , H01L29/518
摘要： A process for forming a hafnium oxide-containing film on a substrate such as silicon that includes introducing an anhydrous hafnium nitrate-containing precursor into a reactor containing the substrate, and converting the precursor into the hafnium oxide-containing film on the substrate by chemical vapor deposition.
摘要翻译：一种在诸如硅的衬底上形成含氧化铪的膜的方法，包括将含无水硝酸铪的前体引入含有衬底的反应器中，并通过化学气相将所述前体转化为所述衬底上的含氧化铪膜沉积

7. 发明授权

US6074773A Impregnation of microporous electrocatalyst particles for improving performance in an electrochemical fuel cell 失效
公开(公告)号：US6074773A
公开(公告)日：2000-06-13
申请号：US36389
申请日：1998-03-06
申请人： David P. Wilkinson , Stephen A. Campbell , Joy A. Roberts
发明人： David P. Wilkinson , Stephen A. Campbell , Joy A. Roberts
IPC分类号： H01M4/86 , H01M4/88 , H01M4/90 , H01M4/92 , H01M8/10 , B05D1/12 , H01M4/96
CPC分类号： H01M8/1004 , H01M4/8605 , H01M4/8892 , H01M4/90 , H01M4/9083 , H01M4/926 , H01M2300/0082
摘要： A method is provided for treating electrocatalyst particles and using the treated electrocatalyst for improving performance in an electrochemical fuel cell. The treatment method comprises impregnating pores of the electrocatalyst particles with an impregnant wherein the pores comprise micropores which have an aperture size less than 0.1 micron. The impregnant is preferably ion-conducting and may comprise an organic acid, an inorganic acid, or a polymer. Alternatively, or in addition, the impregnant has an oxygen permeability greater than that of water. The method of impregnating the electrocatalyst particles preferably comprises the steps of contacting the electrocatalyst particles with an impregnant and subjecting the electrocatalyst particles to a vacuum and/or an elevated pressure above atmospheric pressure. The treated electrocatalyst particles are incorporated into an electrochemical fuel cell. The impregnant improves the mass transport properties for the movement of reactants and reaction products within the micropores of the electrocatalyst particles, thereby improving electrocatalyst utilization and electrochemical fuel cell performance for a fixed amount of electrocatalyst.

8. 发明授权

US5863673A Porous electrode substrate for an electrochemical fuel cell 失效
标题翻译：用于电化学燃料电池的多孔电极基底
公开(公告)号：US5863673A
公开(公告)日：1999-01-26
申请号：US768650
申请日：1996-12-18
申请人： Stephen A. Campbell , Juergen Stumper , David P. Wilkinson , Michael T. Davis
发明人： Stephen A. Campbell , Juergen Stumper , David P. Wilkinson , Michael T. Davis
IPC分类号： H01M4/86 , H01M4/92 , H01M4/96 , H01M8/02 , H01M8/10 , H01M4/88
CPC分类号： H01M4/8626 , H01M4/86 , H01M4/8605 , H01M4/926 , H01M4/96 , H01M8/0213 , H01M8/1004 , H01M8/1007 , H01M8/1009 , H01M2300/0082 , Y10T29/49108
摘要： A porous electrode substrate for an electrochemical fuel cell comprises at least one preformed web having low or poor electrical conductivity. The web contains an electrically conductive filler. A method for preparing a porous electrode substrate for an electrochemical fuel cell comprises the step of filling a preformed web, the web having low or poor electrical conductivity, with an electrically conductive filler.
摘要翻译：用于电化学燃料电池的多孔电极基底包括至少一个具有低或差导电性的预成型网。网包含导电填料。一种制备用于电化学燃料电池的多孔电极基板的方法包括用导电填料填充预成型的网状物（具有低或差的导电性）的步骤。

9. 发明授权

US09799893B2 Catalyst support for fuel cell 有权
公开(公告)号：US09799893B2
公开(公告)日：2017-10-24
申请号：US12446118
申请日：2007-10-18
申请人： Stephen A. Campbell
发明人： Stephen A. Campbell
IPC分类号： H01M4/92 , H01M4/90 , H01M8/1018
CPC分类号： H01M4/92 , H01M4/9075 , H01M4/925 , H01M2008/1095
摘要： A catalytic material for a fuel cell comprising a catalyst supported on a catalyst support, wherein the catalyst support comprises a Period IV transition metal phosphide is disclosed. A membrane electrode assembly (MEA) and fuel cell stack comprising such a catalytic material are similarly disclosed.

10. 发明授权

US08722284B2 Synthesis of stable and durable catalyst composition for fuel cell 有权
标题翻译：燃料电池稳定耐用的催化剂组合物的合成
公开(公告)号：US08722284B2
公开(公告)日：2014-05-13
申请号：US13499068
申请日：2010-09-30
申请人： Stephen A. Campbell , Natalia Kremliakova
发明人： Stephen A. Campbell , Natalia Kremliakova
IPC分类号： H01M4/04
CPC分类号： B01J23/6484 , B01J23/6486 , H01M4/921 , H01M4/923 , H01M2008/1095
摘要： Provided is a catalyst composition comprising an intermetallic phase comprising Pt and a metal selected from either Nb or Ta, and a dioxide of the metal. Also provided is a low temperature method for making such compositions that results in the formation of intermetallic phase with small crystallite size and thus greater mass activity. In particular, a Pt3Nb—NbO2 catalyst composition can be prepared that is useful as a fuel cell catalyst and offers a very stable chemical substrate along with good electrode activity and remarkable durability. The use of Pt3Nb—NbO2 can considerably prolong fuel cell lifetime by reducing Pt dissolution levels and subsequent voltage losses. The Pt3Nb—NbO2 can be used in the cathode and/or anode of a fuel cell.
摘要翻译：提供了一种催化剂组合物，其包含金属间相，其包含Pt和选自Nb或Ta的金属和金属的二氧化物。还提供了一种用于制备这种组合物的低温方法，其导致形成具有小微晶尺寸的金属间相，从而导致更大的质量活性。特别地，可以制备可用作燃料电池催化剂的Pt3Nb-NbO2催化剂组合物，并提供非常稳定的化学底物以及良好的电极活性和显着的耐久性。 Pt3Nb-NbO2的使用可以通过降低Pt溶解水平和随后的电压损耗来大大延长燃料电池寿命。 Pt3Nb-NbO2可用于燃料电池的阴极和/或阳极。

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