Journal
CERAMICS INTERNATIONAL
Volume 46, Issue 7, Pages 9952-9956Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2019.12.107
Keywords
Porous alumina; Nanofibers; Electrospinning; Polymer template; Polyvinyl butyral
Categories
Funding
- Science Fund for Excellent Young Scholars of Science and Technology Agency of Jilin Province [20180520148JH]
- Fund of Education Department of Jilin Province
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In this work, mesoporous alumina nanofibers were synthesized using polyvinyl butyral (PVB) as polymer template via electrospinning technique. Both alumina precursor sol and precursor solution mixed well with PVB ethanol solution in temperature range of 40-80 degrees C to attain transparent spinning solutions. Continuous precursor nanofibers with rough and warped surface were obtained after electrospinning. Calcination of precursor nanofibers in air yielded the opening of mesopores in alumina nanofibers. Rapid escape of gaseous products and phase separation between PVB and alumina precursors were responsible for the formation of porous framework.
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