Electrospinning Equipment: Cost-effective Fabrication of Mesoporous Alumina Nanofibers via Electrospinning 2025-03-26
In this research, inexpensive precursors such as boehmite, PVA, and silica sol were utilized to fabricate mesoporous alumina nanofibers through electrospinning. Boehmite enabled a three - fold increase in the ceramic/polymer precursor ratio without disrupting the electrospinning process, improving fiber quality and reducing brittleness. XRD, FESEM, FTIR and other analyses were employed to characterize the fibers. The results showed that adding silica and increasing the calcination temperature decreased the fiber diameter, and silica inhibited the phase transformation of alumina, enhancing the thermal stability of the γ - Al₂O₃ phase. The synthesized γ - Al₂O₃ mesoporous fibers had a surface area of 204 m²/g and an average pore diameter of 9.5 nm, making them suitable for catalyst support applications. The use of low - cost precursors not only reduced production costs but also demonstrated potential for industrial - scale production.
