Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (08): 968-972.DOI: 10.6023/A1112291 Previous Articles     Next Articles

Full Papers


付晓微, 倪哲明, 刘娇   

  1. 浙江工业大学化学工程与材料学院 杭州 310032
  • 投稿日期:2011-12-29 修回日期:2012-03-09 发布日期:2012-03-09
  • 通讯作者: 倪哲明

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

Fu Xiaowei, Ni Zheming, Liu Jiao   

  1. College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310032
  • Received:2011-12-29 Revised:2012-03-09 Published:2012-03-09

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+.

Key words: inverse gas chromatography, copper-aluminum-magnesium hydrotalcites, surface characterization