Variation of sol-gel synthesis parameters and their consequence for the surface area and structure of magnesium fluoride

被引:42
作者
Wuttke, S. [1 ]
Scholz, G. [1 ]
Ruediger, S. [1 ]
Kemnitz, E. [1 ]
机构
[1] Humboldt Univ, Inst Chem, D-12489 Berlin, Germany
关键词
D O I
10.1039/b711855d
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
High surface area MgF2 was prepared by the sol-gel technique from magnesium alkoxides. The influence of different ratios of Mg(OCH3)(2) to HF, of different magnesium alkoxides, catalysts, solvents as well as different aging times was investigated. XRD, MAS-NMR, FT-IR, thermal analysis and elemental analysis were applied to study the structure, composition and thermal behaviour of the bulk materials. The determination of the surface properties was accomplished with N-2 and Ar adsorption-desorption isotherms.
引用
收藏
页码:4980 / 4988
页数:9
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