| 新型CuO-ZnO-Al2O3复合金属氧化物的制备及其结构研究 |
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| 引用本文： | 刘玉成,李峰.新型CuO-ZnO-Al2O3复合金属氧化物的制备及其结构研究[J].工业催化,2008,16(10):100. |
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| 作者姓名： | 刘玉成 李峰 |
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| 作者单位： | 北京化工大学化工资源有效利用国家重点实验室，北京 100029 |
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| 摘 要： | 采用自行研制的成核晶化隔离法制备了不同Cu2+、Zn2+和Al3+物质的量比的层状双金属氢氧化物(LDHs)。通过X射线衍射(XRD)、红外光谱(FT-IR)、热重-差热分析(TG-DTA)、程序升温还原(TPR)及X光电子能谱(XPS)等研究手段对LDHs及其在500 ℃焙烧产物的组成、结构和表面化学状态进行了分析。结果表明，在焙烧产物中均存在一定形式相互作用的CuO-ZnO-Al2O3复合金属氧化物，Cu2+、Zn2+和Al3+之间的配比影响LDHs结构和热稳定性及其焙烧产物的组成和还原性能。
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| 关 键 词： | 催化化学 层状双金属氢氧化物 复合金属氧化物 铜 结构 还原 |
Study on preparation and structure of CuO-ZnO-Al2O3 mixed metal oxides |
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| LIU Yucheng,LI Feng.Study on preparation and structure of CuO-ZnO-Al2O3 mixed metal oxides[J].Industrial Catalysis,2008,16(10):100. |
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| Authors: | LIU Yucheng LI Feng |
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| Affiliation: | State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Layered double hydroxides(LDHs) with different Cu2+、Zn2+ and Al3+molar ratios were prepared by separate nucleation and aging steps method devoloped by our laboratory. The composition, structure and surface chemical states of LDHs and the products calcined at 500 ℃ were characterized by X ray diffraction(XRD), Fourier transform infrared(FT-IR), thermogravimetry differential thermal analysis (TG-DTA), temperature programmed reduction(TPR) and X ray photoelectron spectrometry(XPS). The results indicated that the interaction of CuO-ZnO-Al2O3 mixed metal oxides existed in LDH samples calcined at 500 ℃, and the molar ratio of Cu2+、Zn2+ and Al3+ had obviously influence on the structure and thermal stability of the LDHs, as well as the composition and reducibility of the calcined samples. |
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| Keywords: | layered double hydroxide mixed metal oxide copper structure reduction catalytic chemistry |
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