SIOC 中文
ACS
Adv search

Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (1): 16-21. Previous Articles     Next Articles

层板Ni2+的引入对CuCr类水滑石晶体结构的影响研究

姜晓瑞, 李峰, Evans D.G., 段雪   

  1. 北京化工大学可控化学反应科学与技术基础教育部重点实验室, 北京, 100029
  • 投稿日期:2003-06-02 修回日期:2003-09-04 发布日期:2014-01-26
  • 通讯作者: 段雪 E-mail::E-mail:duanx@mail.buct.edu.cn
  • 基金资助:
    国家自然科学基金(No.20076003)资助项目.

Investigation of Effects of Incorporated Ni2+ on Crystal Structure of Layered Double Hydroxides Containing Cu(Ⅱ) and Cr(Ⅲ)

JIANG Xiao-Rui, LI Feng, EVANS D. G., DUAN Xue   

  1. Key Laboratory of Science and Technology of Controllable Reactions, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029
  • Received:2003-06-02 Revised:2003-09-04 Published:2014-01-26

PDF

672

This paper reports systematic investigation about the preparation of Cu(Ⅱ)-Ni(Ⅱ)-Cr(Ⅲ) layered double hydroxides (LDHs) with different Cu2+/Ni2+/Cr3+ ratio obtained by the new method developed in our laboratory in which nucleation and aging steps were separated. It was shown that when Cu2+/Ni2+/Cr3+ atomic ratio is between 1:2:1～1:3:1 in the reaction mixture under the hydrothermal aging conditions that aging temperature is 180℃, and aging time is above 4 h, fine crystallized LDH can be obtained. The LDHs were characterized by X-ray diffraction (XRD), FT-IR spectroscopy, chemical analysis, transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and particle size distribution analysis to describe their structure, constitution and thermal behavior. The results showed that the incorporation of Ni2+ in the layer improved the crystalline perfection and structural stability of LDH.

Key words: layered double hydroxide, preparation, layered structure, structural stability