Catalytic oxidation of ethyl acetate and toluene over Cu-Ce-Zr supported ZSM-5/TiO2 catalysts | |
Dou BJ; Li SM; Liu DL; Zhao RZ; Liu JG; Hao QL; Bin F(宾峰); Hao, QL (reprint author), Tianjin Univ Sci & Technol, Coll Chem Engn & Mat Sci, Tianjin 300457, Peoples R China. | |
发表期刊 | RSC ADVANCES |
2016 | |
卷号 | 6期号:59页码:53852-53859 |
ISSN | 2046-2069 |
摘要 | Copper-cerium-zirconium catalysts loaded on ZSM-5/TiO2 (denoted as CCZ/Z and CCZ/T) were prepared and characterized in this investigation and the catalytic behaviors of VOCs over the catalysts were determined. It is shown that the low-temperature activities of ethyl acetate and toluene oxidation over the CCZ/T catalyst are obviously higher than that over the CCZ/Z catalyst. Compared with CCZ/Z, the force between the metal oxides and the support TiO2 is weaker and TiO2 can provide some lattice oxygen. The greater number of oxygen vacancies, together with more Cu+ species in CCZ/T increases the mobility of atomic oxygen anions, which can inhibit by-product formation and enhance catalytic activity effectively. Moreover, the larger pore size of CCZ/T is beneficial for the diffusion of reactants and products. The analysis of intermediate species and the Mars-van Krevelen mechanism well explain the superior oxidation performances of ethyl acetate and toluene on CCZ/T. Both CCZ/Z and CCZ/T show superior stability for the catalytic removal of ethyl acetate and toluene at their complete conversion temperatures, which contribute to the positive effects of the Ce-Zr promoters on the copper species and support. |
DOI | 10.1039/c6ra06421c |
URL | 查看原文 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000378521400030 |
WOS研究方向 | Chemistry |
WOS类目 | Chemistry, Multidisciplinary |
项目资助者 | We gratefully thank the financial support from the National Natural Science Foundation of China (21307088). |
课题组名称 | LHD高效洁净燃烧(CPCR) |
论文分区 | 二类 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/59576 |
专题 | 高温气体动力学国家重点实验室 |
通讯作者 | Bin F(宾峰); Hao, QL (reprint author), Tianjin Univ Sci & Technol, Coll Chem Engn & Mat Sci, Tianjin 300457, Peoples R China. |
推荐引用方式 GB/T 7714 | Dou BJ,Li SM,Liu DL,et al. Catalytic oxidation of ethyl acetate and toluene over Cu-Ce-Zr supported ZSM-5/TiO2 catalysts[J]. RSC ADVANCES,2016,6,59,:53852-53859. |
APA | Dou BJ.,Li SM.,Liu DL.,Zhao RZ.,Liu JG.,...&Hao, QL .(2016).Catalytic oxidation of ethyl acetate and toluene over Cu-Ce-Zr supported ZSM-5/TiO2 catalysts.RSC ADVANCES,6(59),53852-53859. |
MLA | Dou BJ,et al."Catalytic oxidation of ethyl acetate and toluene over Cu-Ce-Zr supported ZSM-5/TiO2 catalysts".RSC ADVANCES 6.59(2016):53852-53859. |
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