期刊
JOURNAL OF RARE EARTHS
卷 29, 期 9, 页码 855-860出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1002-0721(10)60555-8
关键词
catalytic combustion; volatile organic compounds (VOCs); monolithic catalysts; Cu-Mn-Ce mixed oxides; rare earths
资金
- National Natural Science Foundation of China [21107096]
- Zhejiang Provincial Natural Science Foundation [Y5090202]
A monolithic series of Cu-Mn-Ce oxides supported on cordierites with different Cu/Mn/Ce molar ratios were prepared by the in-situ sol-gel method without any binder. The catalysts were characterized by scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), X-ray diffraction (XRD), and Brunauer-Emmett-Teller method (BET) and examined in the catalytic combustion of volatile organic compounds (VOCs). The results showed that the well-dispersed nanometer particles of mixed oxides adhered firmly to the cordierite surface. Cu(0.15)Mn(0.3)Ce(55)/cordierite was identified as the most active catalyst. Compared with commercial Pd/Al(2)O(3), Cu(0.15)Mn(0.3)Ce(55)/cordierite showed higher activities for the combustion of various types of VOCs, especially for oxy-derivative compounds which could be lighted off below 200 degrees C.
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