Cobalt Nanostructured Coatings for Methanol Anodic Oxidizing Maryna Ved*, Nikolay Sakhnenko and Tatiana Nenastina National Technical University, Ukraine Introduction Eco-friendly Fuel Cells (FC), Solar Cells (SC) are among the promising renewable energy sources, however, the high cost of the noble metal electrodes prevents their dissemination and widespread use. Development of FC, SC and various Red-ox Flow Batteries (RFB) needs to create effective catalytic electrodes based on the transition metals. Among the most important requirements to electrode materials are chemical stability of the surface and inactivity to technological environment components; wide window of polarization potentials, in which electrode stays inactive; high selectivity and catalytic activity toward main electrode reactions; significant specific surface area. Even brief review gives an impression that in scientific literature for the last years there are too few publications on electrode materials on the basis of hi-tech materials, such as nanostructured and nanocrystalline materials based on the corrosion resistant amorphous metal alloys (metal glass), or nanostructured deposits by synergistic alloys [1-3]. The most efficient directions of catalytic materials synthesis are electrochemical technologies that provide flexibly control the composition, the deposition rate, the state of the surface, by varying the electrolyte nature and polarization mode [4-6]. Because of this it is possible to fabricate the deposits with desirable functional properties (synergistic or additive) [7-10]. Methods Alloys Co-Mo-W(Zr) were deposited onto the steel substrate from a citrate-diphosphate bath in pulse mode [7,9]. The chemical composition of the coatings was determined by energy dispersive X-ray spectroscopy (EDS) on an Oxford INCA Energy 350 electron probe microanalysis integrated into the system of the SEM. The surface morphology of the deposits was studied with a Zeiss EVO 40XVP scanning electron microscope (SEM). The surface roughness was evaluated by the contact method on 10×10×2mm samples with an NT-206 scanning probe AFM microscope (CSC cantilever B as probe, probe tip radius 10nm). The AFM results are reflected at the Figure 1. The structure of the deposits was examined by X-ray diffraction analysis using a diffractometer (DRON-2.0) in the emission of iron anode and CuKα radiation. Electro catalytic properties of coatings were studied in model reaction of methanol electrooxidizing in alkali medium using Cyclic Voltammetry (CVA) technique [1]. Result and Discussion Structure of the ternary alloys was found to be amorphous-crystalline (Figure 1), and coherent-scattering region size was of 2-8nm. Co-Mo-W coatings contain intermetallic phases Co 7 W 6 , and Co 7 Mo 3 (Figure 2a), and Co 3 Mo and Co 7 Mo 6 ones are found in the structure of Co-Mo- Zr deposits (Figure 2b). Analysis CVA obtained at the Co-Mo-Zr coated electrode polarization in methanol containing alkaline solution shows the ratio of reverse and direct current to be Crimson Publishers Wings to the Research Mini Review *Corresponding author: Maryna Ved, National Technical University, Ukraine Submission: September 13, 2019 Published: November 21, 2019 Volume 1 - Issue 3 How to cite this article: Maryna Ved*, Ni- kolay Sakhnenko and Tatiana Nenastina . Cobalt Nanostructured Coatings for Meth- anol Anodic Oxidizing. Determinations anomed Nanotechnol. 1(3). DNN.000514.2019. DOI: 10.31031/DNN.2019.01.000514 Copyright© Maryna Ved, Kanwal Iqbal, This article is distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use and redistribution provided that the original author and source are credited. 1 Determinations in Nanomedicine & Nanotechnology Abstract A. Co-Mo-W(Zr) electrolytic alloys of both amorphous & crystalline structure were deposited in pulse mode. B. Above alloys exhibit catalytic activity in methanol electrooxidizing in alkali media. C. Ternary coatings were shown to be may be cycled and thus utilized as electrode materials for fuel cells. ISSN : 2832-4439