Preparation and Characterization of Rare Earth Solid Superacids SO₄^2-/TiO₂-SnO₂-Dy₂O₃

Abstract:

A new rare earth solid superacids catalyst SO₄^2-/TiO₂-SnO₂-Dy₂O₃ was prepared by coprecipitation-impregnating method, and the optimum preparation conditions were obtained. The physic- chemical properties of the catalyst was characterized by FTIR, TG-DTA, XRD and BET. The results showed the prepared catalyst is superacid with good thermal stability and high specific surface area. The sulfuric groups were proved to be chelated and bridgingly connected on the surface of the catalyst.

• Periodical: Advanced Materials Research (Volumes 287-290)
• Pages: 1659-1665
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.287-290.1659
• Online since: July 2011
• Authors: Hai Fu Guo, Xiang Li, Zhi Sheng Chen, Peng Yan, Shu Min Li
• Keywords: Esterification Reaction, Preparation Condition, Rare Earth (RE), So₄^2-/ TiO₂-SnO₂-Dy₂O₃, Solid Superacids

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