Nickel oxide (NiO) nanotubules were fabricated by a dodecylsulfate-mediated templating method in a homogeneous precipitation process. The nanotubules obtained have diameters of 20-160 nm and wall thickness of 8-50 nm with lengths up to several micrometers. The crystallinity, morphology and structure features of the NiO nanotubules were investigated by powder X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), infrared (IR) spectrum, etc. (C) 2004 Elsevier B.V. All rights reserved.