CAS: 13801-49-5; Tetrakis(Diethylamino)Zirconium

专利信息

专利号:US-7144563-B2
优先权日:2004-04-22
标题:Synthesis of branched carbon nanotubes
发明人：RAO APPARAO M; GOTHARD NICHOLAS W; GAILLARD JAY B
权利人:UNIV CLEMSON
摘要:The present invention discloses a relatively simple CVD method for forming branched carbon nanotubes. In general, the method includes adding a dopant to the precursor materials. The dopant can be a material that has a thermodynamically more favorable carbide-forming reaction at the reactor conditions than does the catalyst that is provided to the reactor by a second precursor material. The doped nanoparticles formed in the reactor can adhere to the walls of the developing nanotubes and provide a nucleation site for the development of one or more branches on the nanotube. The nanotubes formed according to the invention can be recognized as such due to the presence of the doped nanoparticles adhered along the walls of the branched nanotubes.

专利号:US-8859785-B2
优先权日:2009-05-29
标 题 :Volatile group 2 metal precursors
发明人：NORMAN JOHN ANTHONY THOMAS
权利人:NORMAN JOHN ANTHONY THOMAS; AIR PROD & CHEM
摘要:A compound comprising one or more polyfunctionalized pyrrolyl anions coordinated to a metal selected from the group consisting of barium, strontium, magnesium, radium or calcium or mixtures thereof. Alternatively, one anion can be substituted with and a second non-pyrrolyl anion. n Synthesis of the novel compounds and their use to form BST films is also contemplated.