Synthesis of colloidal dispersions of NiAl, ZnAl, NiCr, ZnCr, NiFe, and MgFe hydrotalcite-like nanoparticles

被引：41

作者：

Bellezza, Francesca ^{[1
,2
]}

Nocchetti, Morena ^{[1
,2
]}

Posati, Tamara ^{[1
,2
]}

Giovagnoli, Stefano ^{[3
]}

Cipiciani, Antonio ^{[1
,2
]}

机构：

[1] Univ Perugia, Dipartimento Chim, I-06123 Perugia, Italy

[2] Univ Perugia, CEMIN, I-06123 Perugia, Italy

[3] Univ Perugia, Dipartimento Chim & Tecnol Farmaco, I-06123 Perugia, Italy

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2012年 / 376卷

关键词：

Hydrotalcite-like compounds; Microemulsion; Nanoparticles; Aqueous dispersions; Colloidal stability; LAYERED DOUBLE HYDROXIDES; TRANSPARENT; FILMS; SIZE; PRECURSORS; CATALYSTS; HYDROGEN; ANIONS;

D O I：

10.1016/j.jcis.2012.02.034

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Colloidal aqueous dispersions of nanometric NiAl, ZnAl, NiCr, ZnCr, NiFe, and MgFe hydrotalcite-like compounds were prepared in a water/cetyltrimethylammonium bromide/n-butanol/isooctane microemulsion. Particle sizes were analyzed with different techniques, and the results confirm dimensions between 10 and 30 nm, except for ZnAl-HTlc (150-200 nm). A good colloidal stability of HTlc-NPs aqueous dispersions, investigated with DLS and Pz measurements, was obtained without the need for any stabilizing agent. SEM images clearly showed that the obtained HTlc posses a high tendency to spontaneously form homogeneous and dense stacking of plate-like HTlc crystals directly from aqueous solution, giving rise to the developing of functional materials in optical, electrical and magnetic fields. (C) 2012 Elsevier Inc. All rights reserved.

引用

页码：20 / 27

页数：8

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