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Preparation and characterization of three-dimensional ordered macroporous rare earth oxide—CeO2

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Abstract

Three-dimensional ordered macroporous (3DOM) rare earth oxide—CeO2 was prepared by colloid crystal template. Cerous nitrate in the presence of citric acid was used as precursor and polystyrene (PS) beads as template. The effect and mechanism between citric acid and cerous nitrate was studied. The introduction of citric acid as chelator could overcome the disadvantage from the low melting point of single cerous nitrate and played an important role to the formation of 3DOM structure. The resulted CeO2 had three-dimensional ordered structure, uniform pore distribution, and interconnected macropores through small holes, which makes CeO2 probably become a new-type catalyst or catalyst support in future.

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Authors and Affiliations

  1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Dongying, 257061, China

    Shi Li, Jingtang Zheng, Weiya Yang, Yucui Zhao & Ying Liu

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  1. Shi Li
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  2. Jingtang Zheng
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  3. Weiya Yang
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  4. Yucui Zhao
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  5. Ying Liu
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Correspondence to Shi Li.

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Li, S., Zheng, J., Yang, W. et al. Preparation and characterization of three-dimensional ordered macroporous rare earth oxide—CeO2 . J Porous Mater 15, 589–592 (2008). https://doi.org/10.1007/s10934-007-9137-z

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  • DOI: https://doi.org/10.1007/s10934-007-9137-z

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