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Investigation of the Structure of γ-Al2O3-Supported MgO by Surface Extended Energy Loss Fine Structure

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Institute of Physical Chemistry, Peking University, Beijing, 100871, P. R. China
Cite this: J. Phys. Chem. A 2002, 106, 12, 2815–2819
Publication Date (Web):February 26, 2002
https://doi.org/10.1021/jp010712r
Copyright © 2002 American Chemical Society

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    Abstract

    This study for the first time investigated the structure of a supported oxide system by SEELFS, the research of which had significance not only in the preparation of advanced solid base catalyst but also in the application of SEELFS technique onto a supported system. We present here the experimental results of a supported oxide system by SEELFS through the structural analysis of magnesia on a γ-alumina carrier. Using a fitting procedure based on an EXAFS-like formula and the phase shifts of a model compound of MgO, the coordination distances for Mg−O and Mg−Mg shells were obtained semiquantitatively and the coordination numbers obtained qualitatively. In addition, the contribution terms in the SEELFS oscillation of Mg K-edge of magnesia were also analyzed by the back Fourier transform of a corresponding Fourier function.

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     Corresponding author. Fax:  +86-10-62753937. E-mail:  huanghz@ csb0.ipc.pku.edu.cn.

    Cited By

    This article is cited by 6 publications.

    1. Muhammad Farooq, Anita Ramli, and Duvvuri Subbarao . Physiochemical Properties of γ-Al2O3–MgO and γ-Al2O3–CeO2 Composite Oxides. Journal of Chemical & Engineering Data 2012, 57 (1) , 26-32. https://doi.org/10.1021/je200597h
    2. Hiromi Matsuhashi, Tetsuro Fujita. Synthesis of a water tolerant solid base of CaO covered with Al2O3. Catalysis Today 2011, 164 (1) , 131-134. https://doi.org/10.1016/j.cattod.2010.10.057
    3. Hiromi Matsuhashi, Koji Nagashima, Nobuaki Naijo, Hirofumi Aritani. Surface Base Sites of MgO Covered with Al2O3: XANES Analysis of Al and Mg K-edges. Topics in Catalysis 2010, 53 (7-10) , 659-663. https://doi.org/10.1007/s11244-010-9502-z
    4. Hiromi Matsuhashi. Synthesis of Novel Solid Base of MgO Covered with Metal Oxides. Topics in Catalysis 2009, 52 (6-7) , 828-833. https://doi.org/10.1007/s11244-009-9234-0
    5. Zhe Wang, Haiqin Wan, Bin Liu, Xi Zhao, Xiaowei Li, Haiyang Zhu, Xuan Xu, Fangying Ji, Keqin Sun, Lin Dong, Yi Chen. Influence of magnesia modification on the properties of copper oxide supported on γ-alumina. Journal of Colloid and Interface Science 2008, 320 (2) , 520-526. https://doi.org/10.1016/j.jcis.2008.02.001
    6. Hui Wang, Hongbo Guan, Lianyun Duan, Youchang Xie. Dispersion of MgO on Pt/γ-Al2O3 and the threshold effect in NO storage. Catalysis Communications 2006, 7 (10) , 802-806. https://doi.org/10.1016/j.catcom.2006.03.003

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