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Preparation and Characterization of Fe 2 O 3 /Ammonium Perchlorate (AP) Nanocomposites through Ceramic Membrane Anti‐Solvent Crystallization
Author(s) -
Ma Zhenye,
Wu Rujun,
Song Jun,
Li Cheng,
Chen Rizhi,
Zhang Lixiong
Publication year - 2012
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201000132
Subject(s) - nanocomposite , ammonium perchlorate , materials science , crystallization , thermal decomposition , chemical engineering , high resolution transmission electron microscopy , ceramic , nanoparticle , ceramic membrane , solvent , sol gel , composite number , composite material , nanotechnology , chemistry , organic chemistry , transmission electron microscopy , engineering
Abstract A novel ceramic membrane anti‐solvent crystallization (CMASC) method was proposed to prepare Fe 2 O 3 /AP nanocomposites with core‐shell structure. For the preparation of Fe 2 O 3 /AP nanocomposites, several key advantages of the CMASC method are as follows. Firstly, both well‐dispersed Fe 2 O 3 nanoparticles and the superfine AP preparation can be achieved at one step. Secondly, no non‐component of solid propellant was involved in this composite process. Thirdly, the size and morphology of Fe 2 O 3 /AP nanocomposites can be effectively controlled by using the ceramic membrane with regular pore structure as feeding template. The morphology and structure of Fe 2 O 3 /AP nanocomposites were characterized by inductively coupled plasma spectrophotometry (ICP), IR spectroscopy, SEM, and HRTEM. The results verified that the size and morphology of Fe 2 O 3 /AP nanocomposites are controllable, and the dispersion of Fe 2 O 3 nanoparticles is greatly improved in Fe 2 O 3 /AP nanocomposites. Moreover, the thermal decomposition of the as‐prepared Fe 2 O 3 /AP nanocomposites was measured with TG‐DSC. The results showed that the Fe 2 O 3 nanoparticles in Fe 2 O 3 /AP nanocomposites exhibit better catalytic activity on the thermal decomposition of AP. In addition, the mechanism was also discussed.