专利号:US-8722284-B2 优先权日:2009-09-30 标 题:Synthesis of stable and durable catalyst composition for fuel cell 发明人:CAMPBELL STEPHEN A; KREMLIAKOVA NATALIA 权利人:CAMPBELL STEPHEN A; KREMLIAKOVA NATALIA; DAIMLER AG; FORD MOTOR CO 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 Pt 3 Nb—NbO 2 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 Pt 3 Nb—NbO 2 can considerably prolong fuel cell lifetime by reducing Pt dissolution levels and subsequent voltage losses. The Pt 3 Nb—NbO 2 can be used in the cathode and/or anode of a fuel cell.
专利号:US-8759247-B2 优先权日:2011-12-27 标 题 :Methanol electro-oxidation catalyst and method of making the same 发明人:ZAIDI SYED MOHAMMED JAVAID; RAHMAN SALEEM UR; AHMED SHAKEEL; BELLO MUKHTAR 权利人:ZAIDI SYED MOHAMMED JAVAID; RAHMAN SALEEM UR; AHMED SHAKEEL; BELLO MUKHTAR; UNIV KING FAHD PET & MINERALS 摘要:The methanol electro-oxidation catalysts include nano-oxides of rare earth metals (i.e., cesium, praseodymium, neodymium and samarium) and platinum nano-particles. The nano-oxides of the rare earth metals are dispersed during synthesis of a support material, preferably formed from mesoporous carbon. The platinum nano-particles form between about 10 wt % and about 15 wt % of the methanol electro-oxidation catalyst, the rare earth metal forms between about 10 wt % and about 15 wt % of the methanol electro-oxidation catalyst, and carbon and oxygen forming the balance (between about 70 wt % and about 80 wt %) of the methanol electro-oxidation catalyst.
专利号:US-9944869-B2 优先权日:2007-03-08 标 题 :Synthesis of liquid fuels and chemicals from oxygenated hydrocarbons 发明人:CORTRIGHT RANDY D; BLOMMEL PAUL G 权利人:VIRENT INC 摘要:Processes and reactor systems are provided for the conversion of oxygenated hydrocarbons to hydrocarbons, ketones and alcohols useful as liquid fuels, such as gasoline, jet fuel or diesel fuel, and industrial chemicals. The process involves the conversion of mono-oxygenated hydrocarbons to aromatics and gasoline range hydrocarbons where the oxygenated hydrocarbons are derived from biomass.
专利号:US-8778829-B2 优先权日:2012-01-03 标题 :Methanol electro-oxidation catalyst and method of making the same 发明人:ZAIDI SYED MOHAMMED JAVAID; RAHMAN SALEEM UR; AHMED SHAKEEL; BELLO MUKHTAR 权利人:ZAIDI SYED MOHAMMED JAVAID; RAHMAN SALEEM UR; AHMED SHAKEEL; BELLO MUKHTAR; UNIV KING FAHD PET & MINERALS 摘要:The active methanol electro-oxidation catalysts include nano-oxides of transition metals (i.e., iron, cobalt and nickel) and platinum-ruthenium alloy nano-particles. The nano-oxides of the transition metals are dispersed during synthesis of a support material, such as mesoporous carbon. The catalyst includes a support material formed from mesoporous carbon, a nano-oxide of a transition metal dispersed in the support material, and platinum-ruthenium alloy nano-particles supported on the nano-oxide of the transition metal, the platinum-ruthenium alloy nano-particles (in a 1:1 molar ratio) forming about 15 wt % of the methanol electro-oxidation catalyst, the transition metals forming about 15 wt % of the methanol electro-oxidation catalyst, and carbon and oxygen forming the balance of about 70 wt % of the methanol electro-oxidation catalyst.
专利号:US-2008300434-A1 优先权日:2007-03-08 标题 :Synthesis of liqiud fuels and chemicals from oxygenated hydrocarbons
专利号:EP-2698416-B1 优先权日:2007-03-08 标题:Synthesis of Liquid Fuels from Oxygenated Hydrocarbons 发明人:CORTRIGHT RANDY D; BLOMMEL PAUL G 权利人:VIRENT INC