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    • 1. 发明授权
    • Materials and methods for immobilization of catalysts on surfaces and for selective electroless metallization
    • 用于固定催化剂在表面上和用于选择性无电镀金属化的材料和方法
    • US07862860B2
    • 2011-01-04
    • US11438248
    • 2006-05-22
    • Tricia Breen CarmichaelSarah Jane VellaAli Afzali-ArdakaniMahmoud Mostafa Khojasteh
    • Tricia Breen CarmichaelSarah Jane VellaAli Afzali-ArdakaniMahmoud Mostafa Khojasteh
    • B05D3/04C23C18/31B32B3/00
    • B01J31/2404B01J23/72B01J23/755B01J31/06B01J31/1658B01J31/185B01J31/2409B01J35/04B01J37/0217B01J2231/4205B01J2231/4261B01J2531/824C23C18/1608C23C18/1893C23C18/2086C23C18/30
    • A method of immobilizing a catalyst on a substrate surface involves providing novel ligating copolymers comprising functional groups capable of binding to a substrate surface and functional groups capable of ligating to catalysts such as metal ions, metal complexes, nanoparticles, or colloids; applying the ligating copolymer to a substrate surface to cause the ligating copolymer to bind thereto, and contacting the modified substrate surface with a solution of a catalyst, causing the catalyst to be ligated by the ligating copolymer and thus immobilized on the substrate surface. The ligating copolymer may be patterned on the substrate surface using a method such as microcontact printing. A method of selectively metallizing a substrate in a desired pattern involves using a ligating chemical agent comprising functional groups capable of binding to a substrate surface and functional groups capable of ligating to electroless plating catalysts; applying the ligating chemical agent to a substrate in a desired pattern using microcontact printing to cause the ligating chemical agent to bind thereto; contacting the modified substrate surface with a solution of an electroless plating catalyst, causing the catalyst to be ligated by the ligating chemical agent and thus bound to the surface; and metallizing the catalyzed regions of the substrate surface using electroless plating.
    • 将催化剂固定在基材表面上的方法包括提供包含能够结合底物表面的官能团和能够连接到催化剂如金属离子,金属络合物,纳米颗粒或胶体的官能团的新型连接共聚物; 将连接共聚物施加到基材表面以使连接共聚物与其结合,并使改性的基材表面与催化剂的溶液接触,使催化剂通过连接共聚物连接,从而固定在基材表面上。 连接共聚物可以使用诸如微接触印刷的方法在基材表面上图案化。 以期望的图案选择性地金属化基底的方法包括使用包含能够结合底物表面的官能团和能够连接到化学镀催化剂的官能团的连接化学试剂; 使用微接触印刷将结合的化学试剂以期望的图案施加到基底上以使结合的化学试剂与其结合; 使改性的基材表面与化学镀催化剂的溶液接触,使催化剂被连接的化学试剂连接并因此结合到表面上; 以及使用化学镀将金属化衬底表面的催化区域。
    • 6. 发明授权
    • Chemical oxidation of graphene and carbon nanotubes using Cerium (IV) ammonium nitrate
    • 使用硝酸铈(IV)硝酸铵对石墨烯和碳纳米管进行化学氧化
    • US08912525B2
    • 2014-12-16
    • US13329115
    • 2011-12-16
    • Ali Afzali-ArdakaniBhupesh ChandraGeorge S. Tulevski
    • Ali Afzali-ArdakaniBhupesh ChandraGeorge S. Tulevski
    • H01L29/06
    • H01L29/78B82Y30/00B82Y40/00C01B32/168C01B32/194
    • A process comprises combining a Ce (IV) salt with a carbon material comprising CNT or graphene wherein the Ce (IV) salt is selected from a Ce (IV) ammonium salt of a nitrogen oxide acid and is dissolved in a solvent comprising water. The process is conducted under conditions to substantially oxidize the carbon material to produce an oxidized material that is substantially non-conducting. After the oxidation, the Ce (IV) is substantially removed from the oxidized material. This produces a product made by the process. An article of manufacture comprises the product on a substrate. The oxidized material can be formed as a pattern on the substrate. In another embodiment the substrate comprises an electronic device with the oxidized material patterning non-conductive areas separate from conductive areas of the non-oxidized carbon material, where the conductive areas are operatively associated with the device.
    • 一种方法包括将Ce(IV)盐与包含CNT或石墨烯的碳材料组合,其中Ce(IV)盐选自氮氧化物的Ce(IV)铵盐,并溶解在包含水的溶剂中。 该方法在基本上氧化碳材料以产生基本不导电的氧化材料的条件下进行。 在氧化之后,Ce(IV)从氧化物质中大体上去除。 这产生了由该过程制成的产品。 制品包括在基材上的产品。 氧化物可以形成为基板上的图案。 在另一个实施例中,衬底包括电子器件,其中氧化材料图案化非导电区域与非氧化碳材料的导电区域分离,其中导电区域与器件可操作地相关联。