Open Access Nano Perspectives

Preparation and Characteraction of New Magnetic Co–Al HTLc/Fe3O4Solid Base

Jun Wang12*, Jia You3, Zhanshuang Li12, Piaoping Yang12, Xiaoyan Jing12 and Milin Zhang12

Author Affiliations

1 College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China

2 The Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin, 150001, P. R. China

3 The 49th Research Institute of China Electronics Technology Group, Harbin, 150001, P. R. China

For all author emails, please log on.

Nanoscale Research Letters 2008, 3:338-342  doi:10.1007/s11671-008-9162-0

Published: 5 September 2008

Abstract

Novel magnetic hydrotalcite-like compounds (HTLcs) were synthesized through introducing magnetic substrates (Fe3O4) into the Co–Al HTLcs materials by hydrothermal method. The magnetic Co–Al HTLcs with different Fe3O4contents were characterized in detail by XRD, FT-IR, SEM, TEM, DSC, and VSM techniques. It has been found that the magnetic substrates were incorporated with HTLcs successfully, although the addition of Fe3O4might hinder the growth rate of the crystal nucleus. The morphology of the samples showed the relatively uniform hexagonal platelet-like sheets. The grain boundaries were well defined with narrow size distribution. Moreover, the Co–Al HTLcs doped with magnetic substrates presented the paramagnetic property.

Keywords:
Magnetic Co–Al hydrotalcite; Hydrothermal method; Paramagnetism; Nanoparticles; X-ray techniques