公开(公告)号：US09947938B2

公开(公告)日：2018-04-17

申请号：US14765679

申请日：2014-01-29

申请人： Johnson Matthey Fuel Cells Limited

发明人： Rachel Louise O'Malley ,  Enrico Petrucco

IPC分类号： H01M4/92 ,  H01M8/1004 ,  H01M4/86 ,  B01J21/18 ,  B01J23/648 ,  B01J37/02 ,  B01J23/46 ,  H01M4/88 ,  H01M8/1018

CPC分类号： H01M4/921 ,  B01J21/18 ,  B01J23/466 ,  B01J23/6484 ,  B01J23/6486 ,  B01J37/0201 ,  H01M4/86 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/8842 ,  H01M4/925 ,  H01M4/926 ,  H01M8/1004 ,  H01M8/1018 ,  H01M2004/8684 ,  H01M2008/1095 ,  H01M2250/20 ,  H01M2300/0082 ,  Y02E60/521 ,  Y02T90/32

摘要： A method of operating a fuel cell having an anode, a cathode and a polymer electrolyte membrane disposed between the anode and the cathode, includes feeding the anode with an impure hydrogen stream having low levels of carbon monoxide up to 5 ppm, wherein the anode includes an anode catalyst layer including a carbon monoxide tolerant catalyst material, wherein the catalyst material includes: (i) a binary alloy of PtX, wherein X is a metal selected from the group consisting of Nb and Ta, and wherein the atomic percentage of platinum in the alloy is from 45 to 80 atomic % and the atomic percentage of X in the alloy is from 20 to 55 atomic %; and (ii) a support material on which the PtX alloy is dispersed; wherein the total loading of platinum in the anode catalyst layer is from 0.01 to 0.2 mgPt/cm2.

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。

公开(公告)号：US20100266929A1

公开(公告)日：2010-10-21

申请号：US12159220

申请日：2006-12-20

申请人： Hiroshi Kanemoto ,  Takao Ishikawa ,  Masafumi Noujima ,  Takeyuki Itabashi

发明人： Hiroshi Kanemoto ,  Takao Ishikawa ,  Masafumi Noujima ,  Takeyuki Itabashi

IPC分类号： H01M8/10 ,  B01J35/04 ,  B65B3/00

CPC分类号： B01J35/065 ,  B01J23/42 ,  B01J23/6486 ,  B01J23/8474 ,  C01B3/001 ,  C01B3/0015 ,  C01B3/02 ,  C01B3/26 ,  C01B3/501 ,  C01B2203/0277 ,  C01B2203/0405 ,  C01B2203/041 ,  C01B2203/048 ,  C01B2203/066 ,  C01B2203/84 ,  H01M4/90 ,  H01M4/9016 ,  H01M4/94 ,  H01M8/04208 ,  H01M8/04216 ,  H01M8/0631 ,  H01M8/065 ,  Y02E60/327 ,  Y02E60/328 ,  Y02E60/36

摘要： An object of the invention is to provide a catalyst of high activity having a dehydrogenation function or hydrogenation function, to provide a fuel cell with a high output density, and further to provide a hydrogen storage/supply device, with which hydrogen is stored or supplied in a high efficient manner.In order to achieve the above object, a porous oxide film of a metal oxide is formed on a hydrogen separation membrane surface of a catalyst having a dehydrogenation function or hydrogenation function and the hydrogen separation membrane is arranged so as to be partially exposed to at the interface with the porous oxide film. In doing so, hydrogen generated on the catalyst can quickly diffuse into the hydrogen separation membrane thereby efficiently releasing the hydrogen to outside of the reaction system. Eventually, the reaction efficiency can be improved. As to the fuel cell of the invention, the catalyst having the dehydrogenation function or hydrogenation function is used in a fuel cell and further in a hydrogen storage/supply device.

摘要翻译： 本发明的目的是提供具有脱氢功能或氢化功能的具有高活性的催化剂，以提供具有高输出密度的燃料电池，并且还提供氢储存/供应装置，氢被储存或供应 以高效率的方式。 为了实现上述目的，在具有脱氢功能或氢化功能的催化剂的氢分离膜表面上形成金属氧化物的多孔氧化物膜，并且氢分离膜被布置成部分地暴露于 与多孔氧化膜接触。 在这样做时，在催化剂上产生的氢可以快速扩散到氢分离膜中，从而有效地将氢释放到反应体系的外部。 最终可以提高反应效率。 对于本发明的燃料电池，具有脱氢功能或氢化功能的催化剂用于燃料电池中，并且还用于氢存储/供给装置。

公开(公告)号：US07015172B2

公开(公告)日：2006-03-21

申请号：US10481794

申请日：2002-06-12

申请人： Yasunobu Inoue

发明人： Yasunobu Inoue

IPC分类号： B01J27/14 ,  B01J27/188 ,  B01J27/185 ,  B01J23/58 ,  B01J23/16

CPC分类号： B01J35/004 ,  B01J23/6484 ,  B01J23/6486 ,  B01J27/1806 ,  B01J27/1811 ,  B01J27/195 ,  C01B3/042 ,  C01B13/0207 ,  Y02E60/364

摘要： A photo-catalyst comprising a compound having structure composing a network formed by mutual connection of an unit constructing oxygen octahedra or tetrahedra containing a transition metal ion or a typical metallic ion in d10 or d0 configuration and an unit constructing PO4 tetrahedron connected to said oxygen octahedra or tetrahedra, further containing an alkali metal besides said metallic ion as a consituent element, for example, AXNb2mP4O6m+8 (wherein A is Na, K or Li, X is 2, 3 or 4 and m is 3, 3.5 or 4) AXTa2mP4O6m+8 (wherein A is Na, K or Li, X is 2, 3 or 4 and m is 3, 3.5 or 4) AXIn2mP4O6m+8 (wherein A is Na, K or Li, X is 2, 3 or 4 and m is 3, 3.5 or 4) and RuO2 is loaded on the compound. The photo-catalyst can be used for the complete decomposition of water.

摘要翻译： 一种光催化剂，其包含具有构成网络的结构的化合物，所述化合物通过构成氧八面体的单元或含有过渡金属离子或典型金属离子的四面体相互连接而形成，所述四面体包含dO 10或d 0 配置和构成连接到所述氧八面体或四面体的PO 4四面体的单元，除了所述金属离子之外还含有碱金属作为构成元素，例如A X， （3）其中A为Na，K或Li，X为2,3或4，和/或 m为3，3.5或4）A 2 2 6×6m + 8（其中A为 Na，K或Li，X为2,3或4，m为3，3.5或4）A 2×2×4 O 6m + 8（其中A是Na，K或Li，X是2,3或4，m是3,3.5或4），并且RuO 2 N 2被加载到 复合。 光催化剂可用于水的完全分解。

公开(公告)号：US20020004453A1

公开(公告)日：2002-01-10

申请号：US09745501

申请日：2000-12-22

申请人： 3M Innovative Properties Company

发明人： Gregory M. Haugen ,  Mark K. Debe ,  John H. Thomas III ,  Krzysztof A. Lewinski ,  George D. Vernstrom

IPC分类号： B01J023/00

CPC分类号： H01M4/90 ,  B01J23/6486 ,  B01J23/6525 ,  B01J23/6527 ,  B01J37/34 ,  B01J37/346 ,  H01M4/9016 ,  H01M4/92

摘要： The present invention provides fuel cell electrode catalysts comprising alternating platinum-containing layers and layers containing suboxides of a second metal, where the catalyst demonstrates an early onset of CO oxidation. Preferred second metals are selected from the group consisting of Group IIIb metals, Group IVb metals, Group Vb metals, Group VIb metals and Group VIIb metals, most preferably Ti, Ta, W and Mo. The present invention additionally provides methods of making such catalysts, preferably by alternate deposition of platinum and second metals in the presence of substoichiometric amounts of gaseous oxygen.

公开(公告)号：US20160184804A1

公开(公告)日：2016-06-30

申请号：US14962697

申请日：2015-12-08

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Satoshi NAGAO ,  Kazutoshi AKASHI

IPC分类号： B01J23/648 ,  B01D53/94 ,  B01J35/02 ,  B01J37/34 ,  B01J35/00

CPC分类号： B01J23/6486 ,  B01D53/9413 ,  B01D53/9418 ,  B01D2255/1025 ,  B01D2255/2065 ,  B01D2255/207 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/30 ,  B01D2255/9202 ,  B01D2258/012 ,  B01J35/0013 ,  B01J35/026 ,  B01J37/349

摘要： An exhaust gas purifying catalyst has enhanced NOx purification performance in a lean atmosphere, and a production method for producing an exhaust gas purifying catalyst includes sputtering a target material containing Ta and Rh to form composite fine metal particles respectively containing Ta and Rh.

摘要翻译： 排气净化催化剂在贫气氛下具有提高的NOx净化性能，废气净化催化剂的制造方法包括溅射含有Ta和Rh的靶材，形成分别含有Ta和Rh的复合金属微粒。

公开(公告)号：US20160006041A1

公开(公告)日：2016-01-07

申请号：US14765679

申请日：2014-01-29

申请人： JOHNSON MATTHEY FUEL CELLS LIMITED

发明人： Rachel Louise O'MALLEY ,  Enrico PETRUCCO

IPC分类号： H01M4/92

CPC分类号： H01M4/921 ,  B01J21/18 ,  B01J23/466 ,  B01J23/6484 ,  B01J23/6486 ,  B01J37/0201 ,  H01M4/86 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/8842 ,  H01M4/925 ,  H01M4/926 ,  H01M8/1004 ,  H01M8/1018 ,  H01M2004/8684 ,  H01M2008/1095 ,  H01M2250/20 ,  H01M2300/0082 ,  Y02E60/521 ,  Y02T90/32

摘要： A method of operating a fuel cell having an anode, a cathode and a polymer electrolyte membrane disposed between the anode and the cathode, includes feeding the anode with an impure hydrogen stream having low levels of carbon monoxide up to 5 ppm, wherein the anode includes an anode catalyst layer including a carbon monoxide tolerant catalyst material, wherein the catalyst material includes: (i) a binary alloy of PtX, wherein X is a metal selected from the group consisting of Nb and Ta, and wherein the atomic percentage of platinum in the alloy is from 45 to 80 atomic % and the atomic percentage of X in the alloy is from 20 to 55 atomic %; and (ii) a support material on which the PtX alloy is dispersed; wherein the total loading of platinum in the anode catalyst layer is from 0.01 to 0.2 mgPt/cm2.

摘要翻译： 一种操作具有设置在阳极和阴极之间的阳极，阴极和聚合物电解质膜的燃料电池的方法，包括向阳极供给具有低至一百五ppm的一氧化碳水平不足的不纯氢气流，其中阳极包括 包含一氧化碳耐受催化剂材料的阳极催化剂层，其中所述催化剂材料包括：（i）PtX的二元合金，其中X是选自Nb和Ta的金属，并且其中铂的原子百分比 该合金为45〜80原子％，合金中X的原子百分比为20〜55原子％。 和（ii）分散有PtX合金的载体材料; 其中铂在阳极催化剂层中的总负载量为0.01至0.2mgPt / cm 2。

公开(公告)号：US20130209912A1

公开(公告)日：2013-08-15

申请号：US13814130

申请日：2011-07-21

申请人： Brian Ronald Charles Theobald ,  Sarah Caroline Ball ,  Rachel Louise O'Malley ,  David Thompsett ,  Graham Alan Hards

发明人： Brian Ronald Charles Theobald ,  Sarah Caroline Ball ,  Rachel Louise O'Malley ,  David Thompsett ,  Graham Alan Hards

IPC分类号： H01M4/92

CPC分类号： H01M4/921 ,  B01J23/6486 ,  B01J23/898 ,  H01M8/086 ,  H01M8/1018 ,  Y02E60/522 ,  Y02E60/523

摘要： A platinum alloy catalyst PtXY, wherein X is a transition metal (other than platinum, palladium or iridium) and Y is a transition metal (other than platinum, palladium or iridium) which is less leachable than X in an acidic environment, has an atomic percentage in the alloy of platinum is from 20.5-40 at %, of X is from 40.5-78.5 at % X and of Y is from 1-19.5 at %.

摘要翻译： 铂合金催化剂PtXY，其中X是过渡金属（除了铂，钯或铱之外），Y是在酸性环境中与X不易浸出的过渡金属（铂，钯或铱不同），具有原子 铂合金中的百分比为20.5-40原子％，X为40.5-78.5原子％X，Y为1-19.5原子％。

公开(公告)号：US20120189943A1

公开(公告)日：2012-07-26

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： H01M4/92 ,  B01J23/648 ,  H01M8/10 ,  B82Y40/00 ,  B82Y30/00

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。

公开(公告)号：US20090247401A1

公开(公告)日：2009-10-01

申请号：US12401255

申请日：2009-03-10

申请人： Wu Mei ,  Taishi Fukazawa ,  Itsuko Mizutani ,  Tsuyoshi Kobayashi ,  Yoshihiko Nakano ,  Mina Farag ,  Shinji Aoki ,  Yi-Qun Li

发明人： Wu Mei ,  Taishi Fukazawa ,  Itsuko Mizutani ,  Tsuyoshi Kobayashi ,  Yoshihiko Nakano ,  Mina Farag ,  Shinji Aoki ,  Yi-Qun Li

IPC分类号： B01J23/42

CPC分类号： H01M4/921 ,  B01J21/18 ,  B01J23/6486 ,  B01J23/6525 ,  B01J23/6527 ,  B01J23/898 ,  B01J23/8993 ,  B01J35/006 ,  B82Y30/00 ,  C22C5/04 ,  H01M4/9041 ,  H01M4/925 ,  H01M4/926

摘要： A methanol oxidation catalyst comprises a material of composition: PtxMzTau in which Pt is platinum, Ta is tantalum, M is an element includes at least one selected from the group consisting of V (vanadium), W (tungsten), Ni (nickel) and Mo (molybdenum), x is 40 to 98 at. %, z is 1.5 to 55 at. %, and u is 0.5 to 40 at. %. To maximize catalytic activity the mater al is preferably in the form of nanoparticles. The values of x, z and u are selected such that the element exhibits X-ray photoelectron spectroscopy peaks derived from an oxygen bond and a metal bond in which a peak area derived from the oxygen bond is twice or less of a peak area derived from the metal bond.

摘要翻译： 甲醇氧化催化剂包括组成的材料：<？in-line-formula description =“In-line Formulas”end =“lead”？> PtxMzTau <？in-line-formula description =“In-line Formulas”end = “尾”→其中Pt是铂，Ta是钽，M是元素包括选自V（钒），W（钨），Ni（镍）和Mo（钼），x 是40到98之间。 ％，z为1.5〜55at。 ％，u为0.5〜40at。 ％。 为了最大限度地发挥催化活性，本发明优选为纳米颗粒的形式。 选择x，z和u的值，使得该元件显示衍生自氧键和金属键的X射线光电子能谱峰，其中衍生自氧键的峰面积是衍生自氧键的峰面积的两倍或更少 金属键。