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首页> 外文期刊>Catalysis science & technology >The transient reduction of NO with CO and naphthalene in the presence of oxygen using a core-shell SmCeO2@TiO2-supported copper catalyst
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The transient reduction of NO with CO and naphthalene in the presence of oxygen using a core-shell SmCeO2@TiO2-supported copper catalyst

机译：没有公司和瞬态减少萘的氧使用核壳SmCeO2@TiO2-supported铜催化剂

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摘要

This work studied the reaction of common pollutants on a catalytic surface under oxidizing conditions. CO and naphthalene were used to reduce NO in the presence of oxygen during the transient heating of metal oxide nanoparticles. The latter consisted of a core-shell SmCeO2@TiO2 support with a TiO2 core and a samarium-stabilized CeO2 shell, impregnated with copper and potassium. The addition of potassium simulated the gradual accumulation of an alkali metal during biomass combustion, which can poison the catalyst. The Cu/SmCeO2@TiO2 catalyst achieved the complete conversions of NO, CO and naphthalene at 225, 236 and 255 degrees C, respectively. Even though the inclusion of potassium had the expected negative effect, the K/Cu/SmCeO2@TiO2 catalyst was still able to fully convert NO and CO at 323 and 299 degrees C, respectively, whereas a maximum naphthalene conversion of only 66% was obtained at 350 degrees C.
机译：这项工作研究了常见的反应污染物在催化剂表面氧化条件。减少在氧气的存在瞬态加热的金属氧化物纳米颗粒。后者由核壳SmCeO2@TiO2二氧化钛的核心和支持samarium-stabilized CeO2壳,浸渍铜和钾。模拟碱溶液的逐步积累金属在生物质燃烧,毒药催化剂。不,公司实现了完整的转换萘在225、236和255摄氏度,分别。钾有预期的负面影响,K /铜/ SmCeO2@TiO2催化剂仍能够完全将没有和公司在323 - 299摄氏度,分别,而最大的萘350年只有66%得到转换摄氏度。

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