NDLI: Preparation, characterization and thermal behavior of silver behenate nanocrystals

Content Provider	Springer Nature Link
Author	Liu, Xianhao Lu, Shuxia Cao, Weiliang Zhang, Jingchang
Copyright Year	2006
Abstract	Silver behenate nanocrystals were first prepared by chemical precipitation in a water tert-butyl alcohol mixed solvent. The influence of main factors on the silver behenate crystal size was studied. The morphology, crystal structure and thermal behavior of silver behenate nanocrystals were investigated using SEM, TEM, XRD, IR and TG-DTA. These results showed that the preparation method, reaction temperature and excessive silver ion concentration in reaction solution played important roles in determining the size of silver behenate nanocrystals. The prepared silver behenates were scaly crystals with a mean diameter of about 70 nm. The silver behenate nanocrystals possessed layer structure. A series of structural changes of silver behenate nanocrystals were observed at different temperatures. The silver behenate nanocrystals had excellent thermal stability below 120°C. At high temperature there were two distinct transitions resulting in dramatic structural changes. In the first transition at 138°C, the alkyl chains of silver behenate were transformed from an ordered into a disordered state. In the second transition at 230°C, a completely irreversible structural change took place due to the decomposition of silver behenate nanocrystals.
Starting Page	515
Ending Page	520
Page Count	6
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	51
Issue Number	5
e-ISSN	18619541
Language	English
Publisher	Science in China Press
Publisher Date	2006-01-01
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	silver behenate nanocrystals preparation characterization thermal behavior Chemistry/Food Science Geosciences Life Sciences Physics Engineering Science
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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