以聚丙烯酸作为模板,NiCl2·6H2O为前驱体,采用环氧化物法制得了镍基复合气凝胶,该气凝胶经过400℃处理后得到氧化镍气凝胶。通过场发射扫描电镜（FESEM）、高分辨透射电镜（HRTEM）、X射线衍射（XRD）和N2吸附对气凝胶的结构进行了表征,结果表明气凝胶是由大量纳米颗粒堆积而成的,其骨架是由大量含氧化镍的胶体颗粒组成的;N2吸附表明气凝胶具有较高的比表面积为192m2/g。X射线衍射（XRD）谱图表明,室温下合成的镍基复合气凝胶为无定形态,该样品经过400℃处理后气凝胶的晶型发生了变化,得到氧化镍气凝胶。
The nickel-based aerogel was prepared using polyacrylic acid as an template and nickel chloride as precursor via epoxide addition method.The aerogel has been characterized using field emission scanning electron microscopy（FESEM）,high resolution transmission electron microscopy（HRTEM）,nitrogen adsorption/desorption analysis and powder X-ray diffraction（XRD）.The results indicate that the nickel-based aerogel has a typical three dimensional structure made up of spherical particles with an open porous network and has high surface area about 192 m2/g.The X-ray diffraction（XRD） patterns show that the aerogel prepared at room temperature belongs to amorphous material.The sample was calcined at 400℃ to obtain a crystalline nickel oxide aerogel.
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