Electrochemical impedance spectroscopy (EIS) investigation of zinc electrodeposition at 10mAcm(-2) indicated the possibility of hydrogen adsorption during deposition process. This causes low angle pyramidal {11.51 and {10.3} texture component via lateral bunching and results the morphology of ridges type. Conversely, at the same current density used in zinc-cobalt deposition the hydrogen adsorption is less pronounced due to adsorption of cobalt and/or cobalt-contained species during the growth stage. This leads to a strong inhibition resulted in a different type of growth, called "Field-Oriented Texture". This kind of growth promoted columnar grain growth results in a large number of elongated crystals almost normal to the substrate surface followed by some blocky crystals on top of them. This develops prism planes as a major texture component besides some basal and low angle pyramidal planes. (C) 2008 Elsevier Ltd. All rights reserved.