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Download fileNanofibrous Aerogel Bulk Assembled by Cross-Linked SiC/SiOx Core–Shell Nanofibers with Multifunctionality and Temperature-Invariant Hyperelasticity
journal contribution
posted on 2019-09-17, 13:38 authored by Bo Ren, Jingjing Liu, Yedong Rong, Lu Wang, Yuju Lu, Xiaoqing Xi, Jinlong YangNanofibrous aerogels
constructed solely by ceramic components with
temperature-invariant hyperelasticity could have broad technological
implications in extreme environments. However, creating such materials
has proven to be extremely challenging. Despite the results from laboratory,
those aerogels are, unfortunately, still plagued with issues that
would retard their further application: inferior structural integrity,
failure at large compressive deformation, high production cost, and
inability to withstand rigorous working conditions. To tackle these
challenges, we report a facile strategy combining the chemical vapor
deposition process and layer-by-layer self-assembly to construct hyperelastic
SiC nanofibrous aerogels with three-dimensional porous architecture
and improved structural integrity. The resultant aerogels outperform
their natural counterparts and most state-of-the-art ceramic nanofibrous
aerogels in their capability to quickly recover from large compressive
deformation (50% strain), function in a wide range of temperatures,
from −196 °C to 1100 °C in air, maintain high particle
matter removal efficiency of >99.96%, and rapidly absorb various
organic
solvents and oils with high capacity and robust recoverability. Nanofibrous
aerogels constructed by such a versatile method could provide fresh
insights into the exploration of multifunctional nanofibrous aerogels
for a variety of applications in extreme environments.
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temperature-invariant hyperelasticityproduction costnanofibrous aerogelschemical vapor deposition processhyperelastic SiC nanofibrous aerogelsmultifunctional nanofibrous aerogelslayer-by-layer self-assemblyparticle matter removal efficiencyNanofibrous Aerogel Bulk AssembledTemperature-Invariant Hyperelasticity Nanofibrous aerogelsNanofibrous aerogels