Decoration of multiwalled carbon nanotubes with CoO and NiO nanoparticles and studies of their magnetism properties

Xiuying Wang; Feng Zhang; Xingfu Zhu; Baiying Xia; Jiesheng Chen; Shilun Qiu; Jixue Li

doi:10.1016/j.jcis.2009.05.006

Decoration of multiwalled carbon nanotubes with CoO and NiO nanoparticles and studies of their magnetism properties

J Colloid Interface Sci. 2009 Sep 1;337(1):272-7. doi: 10.1016/j.jcis.2009.05.006. Epub 2009 May 12.

Authors

Xiuying Wang¹, Feng Zhang, Xingfu Zhu, Baiying Xia, Jiesheng Chen, Shilun Qiu, Jixue Li

Affiliation

¹ State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China.

PMID: 19523647
DOI: 10.1016/j.jcis.2009.05.006

Abstract

Multiwalled carbon nanotubes (MWNTs) have been successfully decorated with magnetic CoO and NiO nanoparticles via the interaction of M(NH(3))x(2+) (M = Co,Ni) ions and the carboxyl groups on the surface of acid-treated MWNTs. The obtained composites were characterized by X-ray diffraction, scanning electron and transmission electron microscopies. The soaking time plays an important role in the preparation of the composites. Magnetic measurements indicate that both the CoO/MWNT and NiO/MWNT composites present superparamagnetic behavior which can be attributed to the small size of CoO and NiO nanoparticles.