Catalytic VOCs elimination over copper and cerium oxide modified mesoporous SBA-15 silica
Catalytic VOCs elimination over copper and cerium oxide modified mesoporous SBA-15 silica
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DOI：
10.1016/j.apcata.2012.12.007
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发表时间：
2013-02
影响因子：
5.5
通讯作者：
T. Tsoncheva;G. Issa;T. Blasco;M. Dimitrov;M. Popova;S. Hernández;D. Kovacheva;G. Atanasova;J. Nieto
中科院分区：
文献类型：
--
作者：
T. Tsoncheva;G. Issa;T. Blasco;M. Dimitrov;M. Popova;S. Hernández;D. Kovacheva;G. Atanasova;J. Nieto
以有序SBA-15 SiO2为载体制备了不同Cu/Ce比的Cu/CeO 2双组分材料，并与它们的块体类似物进行了比较。采用氮气物理吸附、XRD、UV-Vis、FTIR、XPS、拉曼光谱和氢气TPR对样品进行了表征。环己醇转化率被用作催化测试以获得关于负载材料的表面性质的更多信息。以甲苯和乙酸乙酯为探针分子，研究了样品在VOCs氧化反应中的催化性能。建立了介孔二氧化硅载体和样品组成对催化位点形成的强烈影响。
Copper and cerium oxide bi-component materials with different Cu/Ce ratio were prepared using ordered SBA-15 silica as a support and compared with their bulk analogs. The samples were characterized by nitrogen physisorption, XRD, UV-Vis, FTIR, XPS, Raman spectroscopy and TPR with hydrogen. Cyclohexanol conversion was used as a catalytic test to obtain more information for the surface properties of the supported materials. The catalytic properties of the samples were studied in VOCs oxidation using toluene and ethyl acetate as probe molecules. A strong effect of mesoporous silica support and samples composition on the formation of catalytic sites was established.