INFLUENCE OF EXPERIMENTAL CONDITIONS ON THE SIZE AND SHAPE OF CRYSTALLITES PRODUCED BY A SOLID-STATE REACTION - CASE OF CD(OH)2 DECOMPOSITION INTO CDO

被引:16
作者
DUMAS, P
EA, N
NIEPCE, JC
WATELLE, G
机构
[1] Laboratoire de Recherche sur la Réactivité des Solides, Faculté des Sciences Mirande, 21000 Dijon, Campus Universitaire
关键词
D O I
10.1016/0022-4596(79)90174-9
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The results reported were obtained during investigation of the ideal experimental conditions for study of the structural transformation mechanism which occurs in the decomposition reaction of Cd(OH)2 into CdO. By measuring the sizes of CdO crystallites produced as a function of experimental conditions in which decomposition is carried out, it has been possible to distinguish pressure-temperature domains in which CdO formation occurs alone from other domains in which formation is always associated with evolution phenomena. A particular influence of water vapor is reported. The results are discussed in relation to the reaction mechanism. A very easy method using X-ray diffraction peak measurements has been used for crystallite shape characterization. © 1979.
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页码:317 / 327
页数:11
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