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CATALYST FOR DIESEL PARTICULATE FILTER, PREPARATION METHOD OF THE SAME, AND SMOKE REDUCTION DEVICE OF DIESEL ENGINE
CATALYST FOR DIESEL PARTICULATE FILTER, PREPARATION METHOD OF THE SAME, AND SMOKE REDUCTION DEVICE OF DIESEL ENGINE
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机译:柴油机颗粒过滤器的催化剂,相同的制备方法和减少柴油机烟气的装置
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摘要
PURPOSE: A catalyst for a diesel particulate filter, a method for manufacturing the same, a smoke reducing apparatus for diesel vehicle including the same are provided to maintain the high activity of the catalyst for a long period of time regardless of high temperature or vulcanization condition by using a silica-carried platinum-neodymium alloy. CONSTITUTION: A catalyst for a diesel particulate filter includes a silica-carried platinum-neodymium alloy. The molar ratio of the platinum and the neodymium in the alloy is 1:0.1 to 1:1.2. The content of the platinum in the total weight of the catalyst is between 0.1 and 10 weight%. One H_2-temperature programmed reduction peak of the catalyst is in a range between 400 and 800 degrees Celsius. A method for manufacturing the catalyst includes the following: A platinum precursor and a neodymium precursor are mixed in an aqueous solution. The mixture is carried in silica. The silica-carried mixture is plasticized at a temperature between 300 and 600 degrees Celsius. In the plasticizing process, a platinum-neodymium alloy is formed and the alloy is fixed to the silica.
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