Course

Unit I

ElectrodicsElectron transfer under an interfacial electric field, A two way traffic across the interference: equilibrium and exchange current density. Dependence of the electrochemical reaction rate on over potential-Quantitative version of the Butler Volmer equation. Electrode kinetics involving the semiconductor/solution interface. Techniques of electrode kinetics-preparation of electrode surface. Microelectrodes-applications.

Unit II

Industrial Cathodic ProcessElectrodeposition of copper, nickel and chromium over mild steel zinc plating on MS decorative plating of silver and cold nano plating and microstructure of deposits – Tests for adhesion, hardness, thickness, uniformity and corrosion resistance of the electro deposits-post plating passivation processes-barrel plating of small components – Electroless deposition of nickel, copper, gold on metal components making of waveguides and plated through hole boards.

Unit III

Industrial Anodic ProcessesAnodizing of aluminium and its alloys baths used, operating conditions and sequence determination of thickness industrial applications- nano anodizing of titanium, and tantalum application to sensor field. Electropolishing of ferrous and non-ferrous metals and alloys – mechanism of electropolishing Electrochemical etching of ferrous and non-ferrous metals Special processes: Electrolysis of water electrowinning of aluminium and sodium electrolysis of brine-photo electrochemistry

Unit IV

Electrochemical energy systemsPrimary batteries: Zinc-carbon (Leclanche type), zinc alkaline (Duracell),; lithium primary cells – liquid cathode, solid cathode and lithium-ferrous sulphide cells Secondary batteries: Lead acid and VRLA (valve regulated (sealed) lead acid), nickel-cadmium, nickel-zinc, nickel-metal hydride batteries, lithium ion batteries, ultra-thin lithium polymer cells (comparative account) Advanced Batteries for electric vehicles, requirements of the battery – sodium-beta and redox batteries. Reserve batteries thermally activated batteries – remote activation – pyrotechnic materials: Fuel Cells: principle, proton exchange membrane (PEM), direct methanol(DMFC), molten carbonate electrolyte (MCFC) fuel cells and outline of biochemical fuel cells

Unit V

Electrochemical SensorsPotentiometric sensors, solid state potentiometric chemical sensors, polymeric membrane sensors, ion selective field effect transistor, application, hydrovolumetric technique-hydrodynamic voltammetric-application, voltammetric sensors-electrode modification application, optical sensors, bioamperometric titration. Methods involving forced convection-hydrodynamic methods.

TEXT BOOKS1.Allen J. Bard and Larry R. Faulkner, Text book for Electrochemical Methods,2nd edition, Wiley, 2000.2.Derek Pletcher and Frank C. Walsh, Industrial Electrochemistry, Blackie Academic and Professional, (1993).REFERENCES1.Christopher M A, Brett, Electrochemistry Principles, Methods and Applications, Oxford University, (2004).2.Watanabe T, Nano-plating: microstructure control theory of plated film and data base of plated film microstructure, Elsevier, Oxford, UK (2004).3.Kanani N, Electroplating and electroless plating of copper and its alloy, ASM International, Metals Park, OH and Metal Finishing Publications, Stevenage, UK (2003).4.Curtis, Electroforming’, London, (2004).5.Rumyantsev E and Davydov A, Electrochemical machining of metals, Mir, Moscow, (1989).6.Peter G Sheasby Basics of aluminium anodizing, Banbury, Oxon (2001)7.Robert Brugger Nickel Plating Robert Draper Ltd, Teddington, (1970)8.J. K. Dennis, T. E. Such, Nickel and Chromium Plating, Third Edition Woodhead Publishing Series in Metals and Surface Engineering, 3rd Edition,(1993)