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Spinel structure high-entropy ceramic aerogel material as well as preparation method and application thereof
The invention belongs to the technical field of ceramic aerogel materials, and provides a spinel-structured high-entropy ceramic aerogel material and a preparation method and application thereof.The preparation method comprises the steps that hydrated metal inorganic salt serves as a cation source, and deionized water and an organic solvent are used for dissolving the hydrated metal inorganic salt; the invention relates to a preparation method of a spinel-structured high-entropy ceramic aerogel material, which comprises the following steps of: preparing a metal ion precursor solution, uniformly mixing to form the metal ion precursor solution, forming wet gel under the action of a gel accelerator, aging, drying at normal pressure to form an aerogel precursor, and finally performing heat treatment to obtain the spinel-structured high-entropy ceramic aerogel material, and the preparation method is short in process flow, simple and convenient to operate, mild in condition, safe, efficient and low in cost. The prepared spinel-structured high-entropy ceramic aerogel material has a uniform nanoscale reticular porous structure, a relatively high specific surface area and a relatively low high-temperature heat conductivity coefficient, and is a reserve base material in the fields of extreme heat insulation and high temperature resistance.
本发明属于陶瓷气凝胶材料技术领域，本发明提供了一种尖晶石结构高熵陶瓷气凝胶材料及其制备方法和应用，本发明以水合金属无机盐作为阳离子源，利用去离子水和有机溶剂将水合金属无机盐溶解，并均匀混合形成金属离子前驱体溶液，再通过凝胶促进剂作用形成湿凝胶，后经老化、常压干燥形成气凝胶前驱体，最后进行热处理获得尖晶石结构高熵陶瓷气凝胶材料，本发明的制备方法工艺流程短、操作简便、条件温和、安全高效、成本低。制得的尖晶石结构高熵陶瓷气凝胶材料具有均匀的纳米级网状多孔结构、较高的比表面积与较低的高温导热系数，为极端隔热、耐高温领域的储备基础材料。
Spinel structure high-entropy ceramic aerogel material as well as preparation method and application thereof
The invention belongs to the technical field of ceramic aerogel materials, and provides a spinel-structured high-entropy ceramic aerogel material and a preparation method and application thereof.The preparation method comprises the steps that hydrated metal inorganic salt serves as a cation source, and deionized water and an organic solvent are used for dissolving the hydrated metal inorganic salt; the invention relates to a preparation method of a spinel-structured high-entropy ceramic aerogel material, which comprises the following steps of: preparing a metal ion precursor solution, uniformly mixing to form the metal ion precursor solution, forming wet gel under the action of a gel accelerator, aging, drying at normal pressure to form an aerogel precursor, and finally performing heat treatment to obtain the spinel-structured high-entropy ceramic aerogel material, and the preparation method is short in process flow, simple and convenient to operate, mild in condition, safe, efficient and low in cost. The prepared spinel-structured high-entropy ceramic aerogel material has a uniform nanoscale reticular porous structure, a relatively high specific surface area and a relatively low high-temperature heat conductivity coefficient, and is a reserve base material in the fields of extreme heat insulation and high temperature resistance.
本发明属于陶瓷气凝胶材料技术领域，本发明提供了一种尖晶石结构高熵陶瓷气凝胶材料及其制备方法和应用，本发明以水合金属无机盐作为阳离子源，利用去离子水和有机溶剂将水合金属无机盐溶解，并均匀混合形成金属离子前驱体溶液，再通过凝胶促进剂作用形成湿凝胶，后经老化、常压干燥形成气凝胶前驱体，最后进行热处理获得尖晶石结构高熵陶瓷气凝胶材料，本发明的制备方法工艺流程短、操作简便、条件温和、安全高效、成本低。制得的尖晶石结构高熵陶瓷气凝胶材料具有均匀的纳米级网状多孔结构、较高的比表面积与较低的高温导热系数，为极端隔热、耐高温领域的储备基础材料。
Spinel structure high-entropy ceramic aerogel material as well as preparation method and application thereof
一种尖晶石结构高熵陶瓷气凝胶材料及其制备方法和应用
HE XIAOYONG (author) / HE GUANGMING (author) / NIU LUKUN (author) / CHEN SHOUXI (author) / HE WEN (author) / FENG YUXIANG (author) / HE BIAO (author) / HUANG DEZHI (author) / HU GUOYONG (author)
2024-11-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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