Rare earth lanthanum based aerogels with reduced chlorine ions were produced by a modified sol-gel process. In the process, the La³⁺ precursor was designed to coordinate acetylacetone to form a La-complex. Ethanediamine was added in sol solution to form hydrochloride precipitates that were filtered in the following step. After supercritical drying, La-aerogel monoliths with lamella and rod microstructure were achieved. The Ion Chromatography showed that the chlorine within the aerogel synthesized by an optimized recipe reduced to as low as 0.371 wt%, in compared to the well-established method (3.909 wt%). The sol-gel mechanism was explored in detail.

通过改进的溶胶-凝胶工艺生产了具有还原的氯离子的稀土镧基气凝胶。在此过程中，设计了La ³⁺前体以配位乙酰丙酮形成La-络合物。将乙二胺添加到溶胶溶液中以形成盐酸盐沉淀，将其在以下步骤中过滤。超临界干燥后，获得具有薄片和棒状微观结构的La-aerogel整料。离子色谱法显示，与公认的方法（3.909 wt％）相比，通过优化配方合成的气凝胶中的氯降低至0.371 wt％。详细探讨了溶胶-凝胶机理。