摘要
采用冰升华方法制备由可溶盐NaNO2和KNO2混合构成的非晶.当n(NaNO2)∶n(KNO2)=1∶1时,生成产物的非晶衍射峰相对强度最大;随着NaNO2摩尔分数的增加,其短程有序由6.7 nm减至4.8 nm,当n(NaNO2)∶n(KNO2)=2∶1时,其短程有序为3.7 nm,这是由于形成了不同于纯NaNO2或KNO2非晶的新非晶结构所致.
The mixed amorphous composites of soluble salts NaNO： and KNO2 were prepared by ice sublima- tion method. At the condition of n（ NaNO2 ） ： n（ KNO2） = 1 ： 1, the relative intensity of the diffraction peak of the amorphous product reaches the maximum; and the length of short range order decreased from 6.7 nm to 4.8 nm while the proportion of NANO2 to KNO2 increase. Specially, the minimum of 3.7 nm reaches at the condition of n（NaNO2）：n（KNO2） = 2：1. So we believe new amorphous structure that is different from pure NANO2 or KNO2 amorphous structure has been formed.
出处
《吉林大学学报（理学版）》
CAS
CSCD
北大核心
2008年第5期974-977,共4页
Journal of Jilin University:Science Edition
基金
国家自然科学基金(批准号:10374034)
关键词
冰升华
非晶
短程有序
ice sublimation
amorphous
short range order
