Porous nanotubes of Co3O4: Synthesis, characterization, and magnetic properties

• DOI: 10.1063/1.1789577
• Publication Date: 2004-09-17T22:02:05Z
• Authors: R. M. Wang; C. M. Liu; H. Z. Zhang; C. P. Chen; L. Guo; H. B. Xu; S. H. Yang
• Keywords: Characterization; Microemulsion

Stoichiometric Co3O4 porous nanotubes have been synthesized through a simple modified microemulsion method. The structural and the chemical information of as-grown investigated by means x-ray diffraction, electron microscopy, energy loss spectroscopy, dynamic force microscopy. results reveal that materials are formed concentric stacking (111) planes or weaved with diameters ranging from tens to ∼200nm sidewall thickness 2to∼20nm. Magnetic property sample demonstrates magnetic transition temperature at 8.4K, indicating macroscopic quantum confinement effects nanotube.