Fabrication of flexible and amphiphobic alumina mats by electrospinning

An Efficient Strategy for Reinforcing Flexible Ceramic Membranes

“…To maintain a ceramic nanofibrous membrane’s fragile networks for practical applications, it is critical to develop new methods to reinforce the membrane networks. Incorporating flexible one-dimensional fibers into the membrane structures is an effective way to enhance the structural robustness of membrane materials, as highlighted by the unexpectedly obtained soft SiO 2 and Al 2 O 3 fibrous membranes. Subsequently, developing flexible fibrous structures to improve the mechanical performance of ceramic membranes has attracted the most interest for this community. , Recent studies have demonstrated that the realization of ceramic nanofibrous structures with high length-to-diameter ( L / D ) ratios could refine the crystal size to enlarge the grain boundaries, which will help to reduce crack propagation and prevent fibers from breaking when the crystal fibers are bent, thus softening and reinforcing the fibrous materials. − Despite this outstanding potential, there is a large amount of room to further improve the mechanical and thermal insulation performance of ceramic nanofibrous membranes due to the existence of voids and gaps among the flexible ceramic nanofibers, in which the lack of a stable interfacial interaction between nanofibers limits the improvement of its thermal insulation and mechanical stability. , Furthermore, the complex design and manufacturing of robust ceramic nanofibrous membranes materials limit its potential for its large-scale applications.…”

“…To maintain a ceramic nanofibrous membrane's fragile networks for practical applications, it is critical to develop new methods to reinforce the membrane networks. Incorporating flexible one-dimensional fibers into the membrane structures is an effective way to enhance the structural robustness of membrane materials, as highlighted by the unexpectedly obtained soft SiO 2 16 and Al 2 O 3 17 fibrous membranes. Subsequently, developing flexible fibrous structures to improve the mechanical performance of ceramic membranes has attracted the most interest for this community.…”

Development of superamphiphobic alumina nanofiber mats using trimethoxysilane with a short perfluoroalkyl chain

“…Zhang et al. 38 fabricated amphiphobic alumina microfiber mats (water θ* = 134 ∘ and oil θ* = 122 ∘) for anti-corrosion applications, but the fabrication process used hazardous long-chain perfluoroalkylsilanes (FAS), that is, (heptadecafluoro-1, 1, 2, 2-tetradecyl)trimethoxysilane.…”

“…[34][35][36] Hayase et al 37 created a superamphiphobic AN surface for crude oil antifouling applications using supercritical drying to achieve a rough substrate, and then reducing the surface energy by chemical vapor deposition with (1H, 1H, 2H, 2H-heptadecafluorodecyl)-trimethoxysilane, which are toxicological long-chain perfluorinated compounds. Zhang et al 38 fabricated amphiphobic alumina microfiber mats (water à ¼ 134 and oil à ¼ 122 ) for anti-corrosion applications, but the fabrication process used hazardous long-chain perfluoroalkylsilanes (FAS), that is, (heptadecafluoro-1, 1, 2, 2-tetradecyl)trimethoxysilane.…”