Deep oxidation of volatile organic compounds using ordered cobalt oxides prepared by a nanocasting route
Deep oxidation of volatile organic compounds using ordered cobalt oxides prepared by a nanocasting route
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DOI：
10.1016/j.apcata.2010.07.018
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发表时间：
2010-09-30
影响因子：
5.5
通讯作者：
Solsona, Benjamin
中科院分区：
文献类型：
--
作者：
Garcia, Tomas;Agouram, Said;Solsona, Benjamin
以介孔KIT-6 SiO2为硬模板，通过纳米浇铸法成功制备了具有高比表面积（173 m2/g）的有序Co 3 O 4，并对一系列典型的挥发性有机物（VOCs）进行了深度氧化实验：丙烷作为短链烷烃的模型，甲苯作为单芳烃的模型.结果表明，该催化剂对VOC深度氧化的催化活性非常高，且在中温下的催化稳定性非常好。然而，有序结构在催化性能中的作用似乎并不是有益的。增强的催化活性已被解释在高表面积和氧空位的存在下。在目前的工作中，我们首次展示了纳米钴氧化物消除不同挥发性有机化合物的催化行为。(C)2010爱思唯尔有限公司版权所有。
Ordered Co3O4 with high surface area (until 173 m(2)/g) has been successfully obtained through a nanocasting route using mesoporous KIT-6 silica as a hard template and tested in the deep oxidation of a series of representative volatile organic compounds (VOCs): propane as a model of short chain alkane and toluene as a model of monoaromatic hydrocarbon. It has been demonstrated that the catalytic activity for VOC deep oxidation is very elevated and its catalytic stability at moderate temperatures very good. However, the role of the ordered structure in the catalytic performance does not seem to be beneficial. The enhanced catalytic activity has been explained in terms of both the high surface area and the presence of oxygen vacancies. In the present work we show for the first time the catalytic behaviour of a nanocasted cobalt oxide for the elimination of different VOCs. (C) 2010 Elsevier B.V. All rights reserved.