Direct synthesis of highly stretchable ceramic nanofibrous aerogels via 3D reaction electrospinning

Xiaota Cheng, Yi-Tao Liu, Yang Si (), Jianyong Yu and Bin Ding ()
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Xiaota Cheng: Donghua University
Yi-Tao Liu: Donghua University
Yang Si: Donghua University
Jianyong Yu: Donghua University
Bin Ding: Donghua University

Nature Communications, 2022, vol. 13, issue 1, 1-8

Abstract: Abstract Ceramic aerogels are attractive for many applications due to their ultralow density, high porosity, and multifunctionality but are limited by the typical trade-off relationship between mechanical properties and thermal stability when used in extreme environments. In this work, we design and synthesize ceramic nanofibrous aerogels with three-dimensional (3D) interwoven crimped-nanofibre structures that endow the aerogels with superior mechanical performances and high thermal stability. These ceramic aerogels are synthesized by a direct and facile route, 3D reaction electrospinning. They display robust structural stability with structure-derived mechanical ultra-stretchability up to 100% tensile strain and superior restoring capacity up to 40% tensile strain, 95% bending strain and 60% compressive strain, high thermal stability from −196 to 1400 °C, repeatable stretchability at working temperatures up to 1300 °C, and a low thermal conductivity of 0.0228 W m−1 K−1 in air. This work would enable the innovative design of high-performance ceramic aerogels for various applications.

Date: 2022
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DOI: 10.1038/s41467-022-30435-z

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