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Surface Characterization of Copper-Aluminum-Magnesium Hydrotalcites Investigated by Inverse Gas Chromatography

  • Fu Xiaowei ,
  • Ni Zheming ,
  • Liu Jiao
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  • College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310032

Received date: 2011-12-29

  Revised date: 2012-03-09

  Online published: 2012-03-09

Abstract

CuxMg3-xAl-LDHs have been synthesized by coprecipitation, then characterized by FTIR and inverse gas chromatography (IGC). Surface characterization of CuMgAl hydrotalcites has been investigated, link up with outcome of computer simulation. With increasing amounts of Cu2+, surface free energy and the dispersive component of the surface energy increase, then the chemical stability of the system become worse, this may attribute to Jahn-Teller distortion of Cu2+ which affect stability of brucite-like layers, to a large extent; the alkalescence of hydrotalcites decrease originally, then increase with increasing amounts of Cu2+.

Cite this article

Fu Xiaowei , Ni Zheming , Liu Jiao . Surface Characterization of Copper-Aluminum-Magnesium Hydrotalcites Investigated by Inverse Gas Chromatography[J]. Acta Chimica Sinica, 2012 , 70(08) : 968 -972 . DOI: 10.6023/A1112291

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