新型红色发光单相碳酸氧铕的合成

Synthesis of new red-emitting single-phase europium oxycarbonate.

作者信息

Pol Vilas G, Calderon-Moreno Jose M, Popa Monica, Acharya Somobratra, Ariga Katsuhiko, Thiyagarajan P

机构信息

IPNS, Argonne National Laboratory, Argonne, Illinois 60439, USA.

出版信息

Inorg Chem. 2009 Jun 15;48(12):5569-73. doi: 10.1021/ic900290b.

DOI:10.1021/ic900290b

PMID:19419151

Abstract

A fascinating one-pot solvent-, catalyst-, and template-free synthesis process to facilitate a single-phase crystalline hexagonal type-II luminescent Eu(2)O(2)CO(3) organization comprised of nanoplates is demonstrated. The thermolysis (700 degrees C) of europium acetate in a closed stainless steel reactor under autogenic pressure [approximately 3 MPa] yielded Eu(2)O(2)CO(3) superstructures. Powder X-ray diffraction, high-resolution transmission electron microscopy, and Raman measurements confirmed the structure. Fourier transform infrared spectroscopy, energy-dispersive spectrometry, and CHNS analysis verified the composition. Scanning electron microscopy corroborated the morphology of the new Eu(2)O(2)CO(3) compound, and the primary luminescence properties are accounted.

摘要

展示了一种引人入胜的一锅法无溶剂、无催化剂和无模板的合成过程，该过程有助于形成由纳米片组成的单相结晶六方型-II发光Eu(2)O(2)CO(3)结构。在封闭的不锈钢反应器中，醋酸铕在自生压力[约3MPa]下进行热解（700℃），得到Eu(2)O(2)CO(3)超结构。粉末X射线衍射、高分辨率透射电子显微镜和拉曼测量证实了其结构。傅里叶变换红外光谱、能量色散光谱和CHNS分析验证了其组成。扫描电子显微镜证实了新型Eu(2)O(2)CO(3)化合物的形态，并对其主要发光性质进行了说明。