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High-entropy ceramic nanofiber aerogel as well as preparation method and application thereof
The invention relates to high-entropy ceramic nanofiber aerogel as well as a preparation method and application thereof. The method comprises the following steps: adding a rare earth metal oxide or salt into a solvent, and uniformly stirring to obtain a high-entropy ceramic solution; adding polyvinylpyrrolidone into the obtained high-entropy ceramic spinning solution, and uniformly stirring to obtain a spinning solution; preparing the obtained spinning solution into a wet precursor through an electrostatic spinning method; the wet precursor is dried, and a high-entropy ceramic nanofiber aerogel precursor is obtained; and carrying out heat treatment on the high-entropy ceramic nanofiber aerogel precursor to obtain the high-entropy ceramic nanofiber aerogel. The technical problem to be solved is how to enable the high-entropy ceramic nanofiber aerogel to have excellent flexibility, high compressibility and high and low temperature resistance at the same time.
本发明涉及一种高熵陶瓷纳米纤维气凝胶及其制备方法和应用。所述方法包括以下步骤：将稀土金属氧化物或盐中加入溶剂中，搅拌均匀，得到高熵陶瓷溶液；将聚乙烯吡咯烷酮加入得到的高熵陶瓷纺丝液中，搅拌均匀，得到纺丝液；将得到的纺丝液经静电纺丝法制成湿前驱体；将湿前驱体进行干燥，即得高熵陶瓷纳米纤维气凝胶前驱体；将高熵陶瓷纳米纤维气凝胶前驱体进行热处理，即得到所述高熵陶瓷纳米纤维气凝胶。所要解决的技术问题是如何使高熵陶瓷纳米纤维气凝胶同时具有优异柔韧性、高压缩性以及耐高低温性能。
High-entropy ceramic nanofiber aerogel as well as preparation method and application thereof
The invention relates to high-entropy ceramic nanofiber aerogel as well as a preparation method and application thereof. The method comprises the following steps: adding a rare earth metal oxide or salt into a solvent, and uniformly stirring to obtain a high-entropy ceramic solution; adding polyvinylpyrrolidone into the obtained high-entropy ceramic spinning solution, and uniformly stirring to obtain a spinning solution; preparing the obtained spinning solution into a wet precursor through an electrostatic spinning method; the wet precursor is dried, and a high-entropy ceramic nanofiber aerogel precursor is obtained; and carrying out heat treatment on the high-entropy ceramic nanofiber aerogel precursor to obtain the high-entropy ceramic nanofiber aerogel. The technical problem to be solved is how to enable the high-entropy ceramic nanofiber aerogel to have excellent flexibility, high compressibility and high and low temperature resistance at the same time.
本发明涉及一种高熵陶瓷纳米纤维气凝胶及其制备方法和应用。所述方法包括以下步骤：将稀土金属氧化物或盐中加入溶剂中，搅拌均匀，得到高熵陶瓷溶液；将聚乙烯吡咯烷酮加入得到的高熵陶瓷纺丝液中，搅拌均匀，得到纺丝液；将得到的纺丝液经静电纺丝法制成湿前驱体；将湿前驱体进行干燥，即得高熵陶瓷纳米纤维气凝胶前驱体；将高熵陶瓷纳米纤维气凝胶前驱体进行热处理，即得到所述高熵陶瓷纳米纤维气凝胶。所要解决的技术问题是如何使高熵陶瓷纳米纤维气凝胶同时具有优异柔韧性、高压缩性以及耐高低温性能。
High-entropy ceramic nanofiber aerogel as well as preparation method and application thereof
高熵陶瓷纳米纤维气凝胶及其制备方法和应用
WU LINGHAO (author) / CHEN YUFENG (author) / ZHANG SHICHAO (author) / SUN HAORAN (author) / SUN XIANKAI (author) / AI BING (author)
2024-05-10
Patent
Electronic Resource
Chinese
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