A highly efficient and porous catalyst for simultaneous removal of NOx and diesel soot
A highly efficient and porous catalyst for simultaneous removal of NOx and diesel soot
复制标题
一种高效多孔催化剂，可同时去除氮氧化物和柴油机烟灰
DOI：
10.1016/j.catcom.2006.04.015
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发表时间：
2007-02-01
影响因子：
3.7
通讯作者：
Huang, Zhen
中科院分区：
文献类型：
--
作者：
Peng, Xiaosheng;Lin, He;Huang, Zhen
合成了一种同时去除氮氧化物（NOx）和柴油机烟灰的高效多孔催化剂（La0.8K0.2Cu0.05Mn0.95O3），并通过XRD、BET、SEM-EDS、XRF和XPS对样品进行了表征。结果表明该催化剂为钙钛矿型催化剂，具有非常好的多相催化反应特性。通过程序升温反应（TPR）在模拟柴油机排气条件下评价其催化性能。 TPR 结果表明，该催化剂是同时去除 NOx 和柴油机烟灰的有希望的候选者。 NO最大转化为N，烟灰着火温度分别为54.8%和260℃。与以往报道相比，通过同时用K部分取代La和用Cu部分取代Mn，该催化剂的综合性能得到了很大的提高。 (c) 2006 Elsevier B.V. 保留所有权利。
A highly efficient and porous catalyst (La0.8K0.2Cu0.05Mn0.95O3) for simultaneous removal of nitrogen oxides (NOx) and diesel soot was synthesized and the sample was characterized by XRD, BET, SEM-EDS, XRF, and XPS. The results indicate that this catalyst is perovskite and it possesses the very good characteristics for multiphase catalytic reactions. The catalytic properties were appraised under simulated diesel engine exhaust by temperature programmed reaction (TPR). TPR results indicate that this catalyst is a promising candidate for simultaneous removal of NOx and diesel soot. The maximum NO conversion into N, and the ignition temperature of soot are 54.8% and 260 degrees C, respectively. Comparing with those in previous reports, the comprehensive performance of this catalyst is greatly improved by partial substitution of La with K and Mn with Cu at the same time. (c) 2006 Elsevier B.V. All rights reserved.