Synthesis of Co3O4 nanorod bunches from a single precursor CO(CO3)0.35Cl0.20(OH)1.10

CO3O4 nanorods were successfully synthesized from a single precursor via a thermal decomposition and oxidization route. The precursor used was Co(CO3)(0.35)Cl-0.20(OH)(1.10), which was prepared by a hydrothermal reaction using CoCl2(.)6H(2)O with CO(NH2)(2) at 95-120degreesC. Both the precursor and the as-prepared Co3O4 were characterized with XRD, TEM, SEM, TGA and XPS. The precursor, as well as CO3O4, was found to be composed of nanorods that were radially bunched. The Co3O4 nanorods obtained through a thermal treatment at 300 degreesC for 5 h were found to have a porous structure. (C) 2004 Elsevier SAS. All rights reserved.