公开(公告)号：US20090090615A1

公开(公告)日：2009-04-09

申请号：US11905874

申请日：2007-10-05

Applicant: Chun-Ching Chien ,  Shean-Du Chiou ,  Su-Hsine Lin ,  Ning-Yih Hsu

Inventor： Chun-Ching Chien ,  Shean-Du Chiou ,  Su-Hsine Lin ,  Ning-Yih Hsu

IPC: B01J19/08

CPC classification number: H01M4/90 ,  H01M8/04223

Abstract: An apparatus is disclosed for controlling the oxidation state of catalyst for use in a fuel cell. The apparatus includes a holder, a working electrode disposed in the holder, an auxiliary electrode located right above the working electrode, a reference electrode disposed in the holder and a power supply connected to all of the electrodes.

Abstract translation: 公开了用于控制用于燃料电池的催化剂的氧化态的装置。 该装置包括保持器，设置在保持器中的工作电极，位于工作电极正上方的辅助电极，设置在保持器中的参考电极和连接到所有电极的电源。

公开(公告)号：US20110021342A1

公开(公告)日：2011-01-27

申请号：US12140834

申请日：2008-06-17

Applicant: Chun-Ching CHIEN ,  Shean-Du Chiou ,  Su-Hsine Lin ,  Ning-Yih Hsu

Inventor： Chun-Ching CHIEN ,  Shean-Du Chiou ,  Su-Hsine Lin ,  Ning-Yih Hsu

IPC: B01J21/18 ,  H01M4/88 ,  B01J37/08 ,  B01J37/04 ,  B01J37/06 ,  B01J23/46

CPC classification number: H01M4/926 ,  B01J23/6527 ,  B01J27/0573 ,  B01J37/0018 ,  B01J37/009 ,  B01J37/04 ,  B01J37/18 ,  H01M4/8605 ,  H01M4/921 ,  H01M8/1007 ,  Y02P70/56

Abstract: A method is disclosed for making Ru—Se and Ru—Se—W catalyst. In the method, carrier is processed with strong acid and poured into first ethylene glycol solution. Ultra-sonication and high-speed stirring are conducted on the first ethylene glycol solution, thus forming carbon paste. The carbon paste is mixed with second ethylene glycol solution containing at least one nanometer catalyst precursor and an additive. High-speed stirring is conducted to form mixture. The mixture is heated so that Ru—Se catalyst is reduced. The mixture is filtered to separate the carrier. Then, the carrier is washed with de-ionized water. Conducting drying and hydrogen reduction are conducted to make the Ru—Se catalyst on the carrier.

Abstract translation: 公开了制备Ru-Se和Ru-Se-W催化剂的方法。 在该方法中，载体用强酸处理并倒入第一乙二醇溶液中。 在第一乙二醇溶液上进行超声处理和高速搅拌，从而形成碳糊。 碳浆与含有至少一种催化剂前体和添加剂的第二乙二醇溶液混合。 进行高速搅拌以形成混合物。 将混合物加热使得Ru-Se催化剂被还原。 将混合物过滤以分离载体。 然后，用去离子水洗涤载体。 进行干燥和氢还原，使载体上的Ru-Se催化剂。

公开(公告)号：US07842153B2

公开(公告)日：2010-11-30

申请号：US11473023

申请日：2006-06-23

Applicant: Chun-Ching Chien ,  King-Tsai Jeng

Inventor： Chun-Ching Chien ,  King-Tsai Jeng

IPC: B44C1/175 ,  B32B7/14 ,  B32B37/06 ,  B32B37/12 ,  B32B38/10 ,  B29C65/52 ,  B32B37/16 ,  B29C65/56 ,  B29C65/72

CPC classification number: H01M4/8814 ,  H01M4/921

Abstract: Platinum- and platinum alloy-based catalysts with nanonetwork structures are formed on a substrate at first. Then, a support of a proton exchange membrane is taken. In the end, the catalysts are transferred to the support.

公开(公告)号：US07700520B2

公开(公告)日：2010-04-20

申请号：US10907950

申请日：2005-04-22

Applicant: Chun Ching Chien ,  King Tsai Jeng ,  Shean Du Chiou ,  Su Hsine Lin

Inventor： Chun Ching Chien ,  King Tsai Jeng ,  Shean Du Chiou ,  Su Hsine Lin

IPC: B01J37/34 ,  B01J31/00 ,  B01J21/00

CPC classification number: B01J37/0018 ,  B01J23/42 ,  B01J37/16 ,  B01J37/18 ,  H01M4/8621 ,  H01M4/8814 ,  H01M4/8842 ,  H01M4/885 ,  H01M8/1011 ,  H01M2008/1095 ,  Y02E60/523 ,  Y10S977/883

Abstract: This invention relates to the preparations of noble metal catalysts, i.e., platinum and platinum alloys, on suitable supports with nanonetwork structures and high catalytic efficiencies. A compact structure of a monolayer or a few layers is formed by self-assembly of organic polymer, e.g., polystyrene (PS), nanospheres or inorganic, i.e., silicon dioxide (SiO2), nanospheres on a support surface. In the void spaces of such a compact arrangement, catalyst is formed by filling with catalyst metal ion-containing aqueous solution and reduced by chemical reduction, or formed by vacuum sputtering. When using organic polymer nanospheres as the starting or structure-directing material, the polymer particles are removed by burning at a high temperature and the catalyst having a nanonetwork structure is obtained. In the case of using silicon dioxide nanospheres as the starting material, silicon dioxide particles are dissolved with hydrofluoric acid solution and evaporated away leading to formation of a similar nanonetwork structure made of catalyst. The catalysts prepared by these methods possess characteristics of robust in structure, uniform in hole size and high in catalytic surface area. Their main applications include uses as catalysts in direct methanol and proton exchange membrane fuel cells, as well as in chemical reactors, fuel reformers, catalytic converters, etc.

Abstract translation: 本发明涉及贵金属催化剂即铂和铂合金在具有纳米网络结构和高催化效率的合适载体上的制备。 通过在载体表面上自组装有机聚合物，例如聚苯乙烯（PS），纳米球或无机即二氧化硅（SiO 2）纳米球，形成单层或几层的致密结构。 在这种紧凑结构的空隙空间中，通过填充含催化剂金属离子的水溶液并通过化学还原减少或通过真空溅射形成催化剂。 当使用有机聚合物纳米球作为起始或结构导向材料时，通过在高温下燃烧除去聚合物颗粒，并获得具有纳米网络结构的催化剂。 在使用二氧化硅纳米球作为起始材料的情况下，二氧化硅颗粒用氢氟酸溶液溶解并蒸发掉，导致形成由催化剂制成的类似的纳米网络结构。 通过这些方法制备的催化剂具有结构坚固，孔尺寸均匀，催化表面积高的特点。 其主要应用包括用作直接甲醇和质子交换膜燃料电池中的催化剂，以及化学反应器，燃料重整器，催化转化器等。

公开(公告)号：US20060272943A1

公开(公告)日：2006-12-07

申请号：US10908990

申请日：2005-06-03

Applicant: Chun Ching Chien ,  King Jeng ,  Shean Chiou ,  Su Lin ,  Wan Huang ,  Sheng Chen

Inventor： Chun Ching Chien ,  King Jeng ,  Shean Chiou ,  Su Lin ,  Wan Huang ,  Sheng Chen

IPC: G01N27/26

CPC classification number: G01N33/22 ,  H01M4/8605 ,  H01M8/0247 ,  H01M8/04186 ,  H01M8/04194 ,  H01M8/1011 ,  Y02E60/523

Abstract: A simple fuel cell-type electrochemical sensor for sensing the concentration of a specific fuel, e.g., methanol, ethanol, formic acid, sodium borohydride, etc., prepared in an aqueous solution is developed. The sensor is mainly composed of a membrane electrode assembly (MEA), which is made by hot pressing a piece of electro catalytic anode and a piece of electro catalytic cathode on each side of a proton exchange membrane (PEM), such as Nafion® 117. It is uniquely designed to have an anode size much smaller than that of the cathode and utilizes ambient air as an oxidant. The innovative approach is to ensure the fuel diffused to the anode/membrane interface can be totally reacted so as to eliminate the interferences of fuel crossover and enhance output signal. Thus, the measured sensor current reflects the concentration of diffusion-limited fuel at the membrane/electrode interface, which is proportional to fuel concentration in the bulk. It can be easily operated in a passive mode as well as in an active mode with aqueous fuel solution under a stagnant or a flowing condition. The applications include uses in fuel cell systems, such as direct methanol fuel cell systems, for sensing and monitoring fuel concentration in an aqueous solution.

Abstract translation: 开发了用于感测在水溶液中制备的特定燃料（例如甲醇，乙醇，甲酸，硼氢化钠等）的浓度的简单燃料电池型电化学传感器。 该传感器主要由膜电极组件（MEA）组成，该膜电极组件通过热电催化阳极和质子交换膜（PEM）两侧的电催化阴极（如Nafion（R） ）117.其独特设计为具有比阴极尺寸小得多的阳极尺寸，并且利用环境空气作为氧化剂。 创新的方法是确保扩散到阳极/膜界面的燃料可以完全反应，以消除燃料交叉的干扰并增强输出信号。 因此，测量的传感器电流反映了膜/电极界面处的扩散受限燃料的浓度，其与体积中的燃料浓度成比例。 在惰性或流动状态下，它可以容易地在被动模式以及活性模式下与含水燃料溶液一起操作。 这些应用包括用于燃料电池系统，例如直接甲醇燃料电池系统，用于感测和监测水溶液中的燃料浓度。