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    • 5. 发明授权
    • Wall construction for electrolytic cell
    • 电解槽墙结构
    • US06852204B2
    • 2005-02-08
    • US10208099
    • 2002-07-31
    • Weitung WangHancun ChenJack C. Chen
    • Weitung WangHancun ChenJack C. Chen
    • B01D53/32C25B9/00C25B11/04
    • B01D53/326
    • A wall construction for an electrolytic cell to separate oxygen from an oxygen containing gas in which an electrolyte layer of less than 200 microns and a cathode layer of less than 500 microns are supported by an anode that can have a sufficient thickness to also contain the separated oxygen at pressure. The cathode is formed from the same material as the electrolyte and also a noble metal or noble metal alloy and a mixed conductor. The cathode contains a sufficient amount of the noble metal or noble metal allow and the mixed conductor that the total resistance thereof is not greater than about 70 percent of the total resistance of the anode and the cathode. In a preferred embodiment, first and second porous interfacial layers are situated between an anode layer and the electrolyte and the electrolyte and a cathode layer, respectively. The first and second porous interfacial layers increase thermal compatibility between the anode and cathode and the electrolyte, improve the three-phase boundary and allow thinner electrolytes to be employed with fewer manufacturing defects.
    • 用于将氧气与含氧气体分离的壁结构,其中小于200微米的电解质层和小于500微米的阴极层由阳极支撑,该阳极可以具有足够的厚度以也含有分离的 氧气在压力下。 阴极由与电解质相同的材料形成,也由贵金属或贵金属合金和混合导体形成。 阴极含有足够量的贵金属或贵金属允许的混合导体,其总电阻不大于阳极和阴极的总电阻的约70%。 在优选的实施方案中,第一和第二多孔界面层分别位于阳极层和电解质之间,并且分别位于电解质和阴极层之间。 第一和第二多孔界面层增加了阳极和阴极与电解质之间的热相容性,改善了三相边界,并允许使用较薄的电解质,而制造缺陷较少。
    • 7. 发明授权
    • Ion conducting ceramic membrane and surface treatment
    • 离子导电陶瓷膜和表面处理
    • US06264811B1
    • 2001-07-24
    • US09532123
    • 2000-03-21
    • Weitung WangJack C. ChenPrasad ApteTerry Joseph Mazanec
    • Weitung WangJack C. ChenPrasad ApteTerry Joseph Mazanec
    • C25B1300
    • B01D67/0093B01D53/228B01D53/32B01D69/00B01D71/024B01D2257/104B01D2325/26C01B13/0255
    • The present invention provides an ion conducting ceramic membrane selectively permeable to a gas, for instance oxygen and a method of treating such a membrane to improve permeation through the membrane. The membrane is formed by a mass of a substance through which ions of the gas migrate. The mass has two opposed surfaces where dissociation and ionization of the gas occurs and gas ions release electrons and recombine to form molecules of the gas, respectively. At least one of said two opposed surfaces is treated by a removal of surface material to produce surface irregularities of increased area and therefore an increase in total surface area of a treated surface to in turn increase permeation of the gas. Preferably, both surfaces of the membrane are treated by chemical etching techniques, although sand blasting and ion etching are other possible surface treatments in accordance with the present invention.
    • 本发明提供了对气体(例如氧气)可选择性渗透的离子导电陶瓷膜,以及处理这种膜以改善通过膜的渗透的方法。 膜由质量的物质形成,气体的离子通过该物质迁移。 质量具有两个相对的表面,其中气体的离解和电离发生,气体离子释放电子并重新组合以形成气体分子。 通过去除表面材料来处理所述两个相对表面中的至少一个,以产生增加的面积的表面不规则性,因此处理表面的总表面积的增加又增加了气体的渗透。 优选地,通过化学蚀刻技术处理膜的两个表面,尽管喷砂和离子蚀刻是根据本发明的其它可能的表面处理。