Yttrium, Lanthanide and Mixed Y‐Ln Vanadates Prepared from Molecular Precursors Based on EDTA
作者:Nicolas Deligne、Vanessa Gonze、Daisy Bayot、Michel Devillers
DOI:10.1002/ejic.200700953
日期:2008.2
Yttrium(III) and lanthanide(III) vanadates corresponding to the general formula AVO(4) (A = Y, Pr, Sm, Eu, Gd, Dy, Er) were prepared by a nonconventional soft chemistry route in which coordination compounds of the different elements to be incorporated were used as molecular precursors. In this case, EDTA-based yttrium(III), lanthanide(III) and vanadium(V) complexes were synthesised, characterised and
对应于通式 AVO(4) (A = Y, Pr, Sm, Eu, Gd, Dy, Er) 的钇 (III) 和镧系元素 (III) 钒酸盐是通过非常规软化学路线制备的,其中要加入的不同元素被用作分子前体。在这种情况下,基于 EDTA 的钇 (III)、镧系元素 (III) 和钒 (V) 配合物在 800 度的中等温度下合成、表征并用作制备锆石型 AVO(4) 材料的前体C,由 XRD 和拉曼分析证明。还获得了固溶体,如 Y1-x-PrxO4 和 Y1-x-GdxVO4。观察到化学成分和晶格参数或拉曼位移之间的线性相关性。SEM用于表征颗粒尺寸和形态。((D Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim,