Journal
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 26, Pages 4167-4173Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.201200292
Keywords
Materials science; Nanostructures; Nanosheets; Nanofibers; Electro-spinning; Sol-gel processes; Thermal stability; Alumina fibers
Categories
Funding
- Science Funds for Distinguished Young Scientists of Shandong Province [JQ200903]
- Natural Science Foundation of Shandong Province [ZR2011BZ002]
Ask authors/readers for more resources
Flexible a-alumina nanofibers were fabricated by the solgel method combined with an electrospinning process. The sol was prepared with aluminum isopropoxide and aluminum nitrate as the precursors, nitric acid as the catalyst, and ethanol aqueous solution as the solvent. Small amounts of anhydrous magnesium sulfate as additive acted to stabilize the ?-Al2O3 structure and retard its conversion to a-Al2O3 firstly, and subsequently MgAl2O4 was formed at the grain boundaries to inhibit grain growth. Polyvinylpyrrolidone (PVP) was applied to tune sol viscosity. The fibers with diameters of 300400 nm are composed of a-Al2O3 nanosheets with thickness in the range of 2050 nm and stack along [0001] at the axial direction. The fibers exhibited good flexibility and thermal stability.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available