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Ultralight Magnetic Nanofibrous GdPO4 Aerogel

机译:超轻磁性纳米纤维GDPO4气凝胶

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Anisotropic aerogels are promising bulk materials with a porous 3D structure, best known for their large surface area, low density, and extremely low thermal conductivity. Herein, we report the synthesis and some properties of ultralight magnetic nanofibrous GdPO_(4) aerogels. Our proposed GdPO_(4) aerogel synthesis route is eco-friendly and does not require any harsh precursors or conditions. The most common route for magnetic aerogel preparation is the introduction of magnetic nanoparticles into the structure during the synthesis procedure. However, the nanofibrous GdPO_(4) aerogel reported in this work is magnetic by itself already and no additives are required. The hydrogel used for nanofibrous GdPO_(4) aerogel preparation was synthesized via a hydrothermal route. The hydrogel was freeze-dried and heat-treated to induce a phase transformation from the nonmagnetic trigonal to magnetic monoclinic phase. Density of the obtained magnetic nanofibrous monoclinic GdPO_(4) aerogel is only ca. 8 mg/cm~(3).
机译:各向异性气凝胶是具有多孔3D结构的散装材料,最适合其大表面积,低密度和极低的导热性。在此,我们报告了超轻磁性纳米纤维GDPO_(4)气凝胶的合成和一些性质。我们提出的GDPO_(4)气凝胶合成路线是环保的,不需要任何苛刻的前体或条件。最常见的磁性气凝胶制剂的路线是在合成过程中引入磁性纳米颗粒进入结构中的结构。然而,在本作工作中报道的纳米纤维GDPO_(4)气凝胶本身磁性磁性并且不需要添加剂。用于纳米纤维GDPO_(4)气凝胶制剂的水凝胶通过水热途径合成。将水凝胶冷冻干燥并热处理,以诱导来自非磁性间转化与磁性单斜相的相变。所得磁性纳米纤维单斜晶型GDPO_(4)气凝胶的密度仅为CA。 8 mg / cm〜(3)。

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