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首页> 外国专利> metal oxide support material, process for the preparation of metal oxide support material, use of metal oxide support material, diesel oxidation catalyst, and method for treating exhaust gas stream emissions diesel engine

metal oxide support material, process for the preparation of metal oxide support material, use of metal oxide support material, diesel oxidation catalyst, and method for treating exhaust gas stream emissions diesel engine

机译：金属氧化物载体材料，金属氧化物载体材料的制备方法，金属氧化物载体材料的用途，柴油机氧化催化剂以及处理废气流的方法

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metal oxide support material, process for the preparation of metal oxide support material, use of metal oxide support material, diesel oxidation catalyst, and method for treating exhaust gas stream emissions diesel engine. The present invention relates to a metal oxide support material containing nanoscale platinum-iron group metal particles having a particle size in the range 0.5 nm to 10 nm, which is considered to be at least 70% of all The nanoscale platinum-iron group metal particles located on an outer surface layer have an average volume of less than 30% based on the total volume of the metal oxide support material. In addition, the present invention relates to a process for the preparation of such nanoscale platinum-iron group metal oxide support material. furthermore, the present invention relates to the use of metal oxides containing nanoscale platinum-iron group metal particles as catalysts, for example as a diesel oxidation catalyst for treating diesel engine exhaust gas emissions.
机译：金属氧化物载体材料，金属氧化物载体材料的制备方法，金属氧化物载体材料的用途，柴油机氧化催化剂以及处理柴油机废气排放的方法。本发明涉及一种金属氧化物载体材料，其包含具有在0.5nm至10nm范围内的粒径的纳米级铂-铁族金属颗粒，其被认为至少占全部纳米级铂-铁族金属颗粒的70％。相对于金属氧化物载体材料的总体积，位于外表面层上的“α”平均体积小于30％。另外，本发明涉及制备这种纳米级铂-铁族金属氧化物载体材料的方法。此外，本发明涉及含有纳米级铂-铁族金属颗粒的金属氧化物作为催化剂，例如作为用于处理柴油发动机废气排放的柴油氧化催化剂的用途。

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