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Meso/macroporous γ-Al2O3 fabricated by thermal decomposition of nanorods ammonium aluminium carbonate hydroxide
- Source :
- Materials Research Bulletin. 47:1073-1079
- Publication Year :
- 2012
- Publisher :
- Elsevier BV, 2012.
-
Abstract
- A B S T R A C T Through exploring the reaction parameters during the synthesis of the AACH, rod-like ammonium aluminium carbonate hydroxide (AACH) with high crystallinity has been successfully prepared via a facile hydrothermal method. The synthesis parameters like time, the molar ratio of NH4HCO3/Al and the properties of starting materials were systematically investigated. The structure was characterized using X-ray powder diffraction (XRD), scanning electron microscopy (SEM), IR and transmission electron microscopy (TEM). The experimental results display that the obtained g-Al2O3 materials possess meso/ macroporosity and large pore volume, which are mainly attributed to the removal of gas molecules during the decomposition of AACH. Moreover, using the rod-like AACH as precursor, g-Al2O3 nanorods were obtained via a low-temperature thermal decomposition method.
- Subjects :
- Aluminium oxides
Materials science
Scanning electron microscope
Mechanical Engineering
Thermal decomposition
Inorganic chemistry
Condensed Matter Physics
chemistry.chemical_compound
Crystallinity
chemistry
Chemical engineering
Mechanics of Materials
Aluminium carbonate
Hydroxide
Hydrothermal synthesis
General Materials Science
Powder diffraction
Subjects
Details
- ISSN :
- 00255408
- Volume :
- 47
- Database :
- OpenAIRE
- Journal :
- Materials Research Bulletin
- Accession number :
- edsair.doi...........bf798613b886d7f8daafd951d1f1275b