1. Centre for Electrochemical Synthesis of Nanomaterials and Functional Coatings Faculty of Chemical Technology  Metalurgy Prof. Dr. Sc. Tamaz Agladze Basic Research Directions Novel Electrochemical Technique for Synthesis and Size Tuning of Metal Nanoparticles Novel Electrochemical Technique for Synthesis and Size Tuning of Metal Nanoparticles Implementation of Metal and Composite Nanomaterials for: Implementation of Metal and Composite Nanomaterials for: Water Disinfection and Purification Low-cost Three-way Catalytic Converters of Toxic Emissions Novel Electrodeposited Metal Hydride Materials for Catalysis and Energy Storage Novel Electrodeposited Metal Hydride Materials for Catalysis and Energy Storage tamazagladze@emd.ge

2. Novel Electrochemical Technique for Synthesis and Size Tuning of Metal Nanoparticles The technique provides an instrumental approach to multiparametric control over the rates of size determining processes such as nucleation, growth, stabilization and dispersion of metal clusters. The particle size is tuned by variation in the residence time τ R, during which metal cluster formed at a cathode in an aqueous electrolyte is allowed to adsorb amphiphile molecules of surfactant dissolved in an organic solvent is demonstrated. Electrochemical cell for synthesis of metal nanozoles T. Agladze at al. Z. Phys. Chem. 227 (2013) 1–13 Core-Shell NPs

3. Diam.(nm)-25.52 % Intensity-60.7 Diam.(nm)-22.6 % Intensity-56.2 Diam.(nm)-18.6 % Intensity-79.3 DSL patterns Variation in particle size with resident time Ag TEM images Size Tuning

4. Noble Metal Free Three-Way Catalytic Converters (TWC) TWC, (CO, CHx, Nox) which is the primary modern emission control technology on gasoline vehicles utilize precious metals (Pt, Pd, Rh) Target Target Noble metal free cost-effective high-performance TWC nanomaterials Manganese Nanocomposite Catalyst CO Convertsion, % Temperature, °C Heat Treatment 105-1000°C 40 Cycles, toal 100 hours 500°C800°C1000°C Max treatment temp. 100% conversion temperature Test

5. Electrodeposited Manganese Hydride-Perspective Material for Catalysis and Energy Storage Electrodeposited Manganese Hydride-Perspective Material for Catalysis and Energy Storage Metastable Mn-H is able to release hydrogen at a rate ~0,02gH 2 /s(atmospheric pressure, 70°C ) which meets DOE requirements for hydrogen storage materials H 2 volume,l/kgMn Time, min 30°C MnHx is synthesized, isolated and physic-chemical properties are studded for the first time

6. 66°54° 56° Thermo Phase Transformation

7. OPD (M )  Dissolution (M )  Phase Transformation Potential, - E Partial rates, lgi MH Decomposition UPD (Mn-H) EMEM 0 E MH 0,M S MS i 0,MH iMiM  0 Electrochemical Phase Transformation Magnetic Properties of the Phases  Mn-H Mn-H Mn Mn    Electrochemical Multilayer T. Agladze at al. El. Acta, 2014