Facile synthesis and characterization of acetate intercalated Co-La layered double hydroxide

被引：0

作者：

Meenakshi Pokhriyal

Sitharaman Uma

Rajamani Nagarajan

机构：

[1] MaterialsChemistryGroup,DepartmentofChemistry,UniversityofDelhi

来源：

JournalofRareEarths | 2017年 / 35卷 / 05期

关键词：

layered double hydroxides; chemical synthesis; X-ray diffraction; intercalation; organic-inorganic hybrids; rare earths;

D O I：

暂无

中图分类号：

O611.64 [氢氧化物、碱];

学科分类号：

070301 ; 081704 ;

摘要：

Layered double hydroxide（LDH） comprising of Co2+ and La3+-ions with acetate counter anion was successfully synthesized by hydrogen peroxide catalyzed hydrolysis reaction and characterized extensively. The observed reflections in the powder X-ray diffraction pattern could be indexed in P3 space group with a=0.316 nm and c=2.97 nm. Lattice fringes of distances corresponding to the peaks observed in X-ray diffraction pattern were observed in high resolution transmission electron microscopic images. UV-visible diffuse reflectance spectroscopy results confirmed the presence of Co（OH）6 along with the presence of charge-transfer band due to the interlayer carboxylate anion. Magnetization measurements at room temperature indicated high spin configuration of Co2+-ion in the sample exhibiting paramagnetic behavior. The mixed metal oxide from calcination was used to reconstruct the parent layered structure. Intercalation experiments with other organic anions in Co-La LDH proved be successful.

引用

页码：474 / 479

页数：6

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