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首页> 外文期刊>Catalysis Communications >CoAl2O4 spinel catalyst for soot combustion with NO_x/O2
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CoAl2O4 spinel catalyst for soot combustion with NO_x/O2

机译：CoAl2O4尖晶石催化剂，用于NO_x / O2烟尘燃烧

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摘要

Mesoporous and nanosized cobalt aluminate spinel with high specific surface area was prepared using microwave assisted glycothermal method and used as soot combustion catalyst in a NO_x + O2 stream. For comparison, zinc aluminate spinel and alumina supported platinum catalysts were prepared and tested. All samples were characterised using XRD, (HR)TEM, N2 adsorption-desorption measurements. The CoAl2O4 spinel was able to oxidise soot as fast as the reference Pt/Al2O3 catalyst. Its catalytic activity can be attributed to a high NO_x chemisorption on the surface of this spinel, which leads to the fast oxidation of NO to NO2.
机译：采用微波辅助糖热法制备了具有高比表面积的介孔纳米级铝酸钴尖晶石，并用作NO_x + O2流中的烟尘燃烧催化剂。为了比较，制备并测试了铝酸锌尖晶石和氧化铝负载的铂催化剂。使用XRD，（HR）TEM，N2吸附-脱附测量对所有样品进行表征。 CoAl2O4尖晶石能够像参考Pt / Al2O3催化剂一样快速氧化烟灰。其催化活性可以归因于该尖晶石表面的高NO_x化学吸附，这导致NO快速氧化为NO2。

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