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Conductive magnetic ceramic nanofiber aerogel as well as preparation method and application thereof
The invention discloses conductive magnetic ceramic nanofiber aerogel as well as a preparation method and application thereof, and the preparation method comprises the following steps: uniformly mixing polyethylene oxide and an aqueous solution of ethyl silicate to prepare precursor nanofiber; curing, pyrolyzing and cooling the precursor nanofiber, and uniformly dispersing the precursor nanofiber in a water phase to obtain a SiO2 nanofiber water-based dispersion; uniformly mixing the SiO2 nanofiber aqueous dispersion, the graphite oxide aqueous dispersion and ZIF-67 powder, and then carrying out liquid nitrogen freezing treatment; and freeze-drying the product subjected to liquid nitrogen freezing treatment, and annealing in an inert atmosphere to obtain the conductive magnetic ceramic nanofiber aerogel. According to the ultralight, bionic, porous, conductive and magnetic ceramic nanofiber aerogel provided by the invention, the interconnected high-porosity aerogel with good mechanical elasticity is constructed by utilizing a firm combination point of graphene, renewable flexible SiO2 nanofibers and magnetic components.
本发明公开了一种导电磁性陶瓷纳米纤维气凝胶及其制备方法与应用，制备方法包括如下步骤：将聚环氧乙烷与硅酸乙酯的水溶液混匀后，制备前驱体纳米纤维；将前驱体纳米纤维固化、热解、冷却后，均匀分散在水相中，获得SiO2纳米纤维水性分散体；将所述SiO2纳米纤维水性分散体、氧化石墨水分散体和ZIF‑67粉末混合均匀后，进行液氮冷冻处理；将液氮冷冻处理后的产品冷冻干燥、惰性氛围中退火，得到导电磁性陶瓷纳米纤维气凝胶。本发明提供的超轻、仿生多孔、导电和磁性陶瓷纳米纤维气凝胶利用石墨烯与可再生柔性SiO2纳米纤维和磁性组分的牢固结合点，构建了具有良好机械弹性的互连高孔隙率气凝胶。
Conductive magnetic ceramic nanofiber aerogel as well as preparation method and application thereof
The invention discloses conductive magnetic ceramic nanofiber aerogel as well as a preparation method and application thereof, and the preparation method comprises the following steps: uniformly mixing polyethylene oxide and an aqueous solution of ethyl silicate to prepare precursor nanofiber; curing, pyrolyzing and cooling the precursor nanofiber, and uniformly dispersing the precursor nanofiber in a water phase to obtain a SiO2 nanofiber water-based dispersion; uniformly mixing the SiO2 nanofiber aqueous dispersion, the graphite oxide aqueous dispersion and ZIF-67 powder, and then carrying out liquid nitrogen freezing treatment; and freeze-drying the product subjected to liquid nitrogen freezing treatment, and annealing in an inert atmosphere to obtain the conductive magnetic ceramic nanofiber aerogel. According to the ultralight, bionic, porous, conductive and magnetic ceramic nanofiber aerogel provided by the invention, the interconnected high-porosity aerogel with good mechanical elasticity is constructed by utilizing a firm combination point of graphene, renewable flexible SiO2 nanofibers and magnetic components.
本发明公开了一种导电磁性陶瓷纳米纤维气凝胶及其制备方法与应用，制备方法包括如下步骤：将聚环氧乙烷与硅酸乙酯的水溶液混匀后，制备前驱体纳米纤维；将前驱体纳米纤维固化、热解、冷却后，均匀分散在水相中，获得SiO2纳米纤维水性分散体；将所述SiO2纳米纤维水性分散体、氧化石墨水分散体和ZIF‑67粉末混合均匀后，进行液氮冷冻处理；将液氮冷冻处理后的产品冷冻干燥、惰性氛围中退火，得到导电磁性陶瓷纳米纤维气凝胶。本发明提供的超轻、仿生多孔、导电和磁性陶瓷纳米纤维气凝胶利用石墨烯与可再生柔性SiO2纳米纤维和磁性组分的牢固结合点，构建了具有良好机械弹性的互连高孔隙率气凝胶。
Conductive magnetic ceramic nanofiber aerogel as well as preparation method and application thereof
一种导电磁性陶瓷纳米纤维气凝胶及其制备方法与应用
ZENG ZHIHUI (author) / LI BIN (author) / LIU JIURONG (author) / LIU WEI (author) / WU NA (author)
2024-04-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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