Mg/Al layered double hydroxide-Pt nanoparticle composite by delamination-restacking route

被引：7
|
作者：
Nityashree, N. [1 ]
Menezes, Premitha [1 ]
机构：
[1] St Josephs Coll, Dept Chem, Mat Res Grp, 36 Lalbagh Rd, Bangalore 560027, Karnataka, India
来源：
APPLIED NANOSCIENCE | 2013年 / 3卷 / 04期
关键词：
Layered double hydroxide; Delamination-restacking; Capped Pt-nanoparticles; Nanocomposite;
D O I：
10.1007/s13204-012-0137-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Platinum nanoparticle intercalated magnesium-aluminum layered double hydroxide (LDH) composite was prepared by restacking the colloidal dispersion of organically modified LDH in the presence of preformed oleylamine capped platinum nanoparticles in n-butanol. The resultant nanocomposite was characterized using powder X-ray diffraction (PXRD), infrared (IR) spectroscopy, transmission electron microscopy (TEM), selected area electron diffraction and energy dispersive X-ray spectroscopy (EDX). The PXRD pattern of the composite indicates an expanded interlayer due to the intercalation of the Pt-nanoparticles into the LDH interlayer region. PXRD patterns along with the IR spectra confirm the formation of the precursors and the composite. TEM image of Pt-nanoparticles shows spherical particles with an average particle size of similar to 3 nm and that of the composite shows dispersed Pt-nanoparticles on the LDH matrix. The presence of Pt, Mg and Al in the composite is indicated in the EDX data.
引用
收藏
页码：321 / 327
页数：7
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