Topic: Advanced Materials Development for Clean Energy, Environment and Biomedical Applications
Speaker: Dr. Sesha S. Srinivasan, Department of Physics, Tuskegee University
Date & Time: Thursday, September 26, 2013, 1:00 PM
Place: Room 140 VMC (Chambers Hall)
In this presentation, novel and exotic materials’ synthesis, optimization, characterization and property measurements are discussed based on their potential for physico-chemical, electrochemical, photocatalytic, clean energy production, energy (chemical or heat) storage, biomedical, oil spill and other industrial applications. The wide range of inorganic and organic materials’ development from this research include high temperature metals and alloys, ceramics, quasicrystalline and nanocrystalline materials, alkali/alkaline based composites, multi-component electrode materials, multi-phase and multi-functional systems, light-weight ternary, pseudo-ternary, quaternary and multinary hydrides, nanoparticles of heterogeneous semiconductor oxides, nanocatalysts, soft materials such as polymer nanofibers, hyper-crosslinked polymers, carbon nanotube, graphene and graphene oxides etc. For the synthesis of these materials, state-of-the-art tools and processes such as radio frequency induction (spin) melting; mechanical alloying using high energy ball mill; co-precipitation and hydrolysis process by sol-gel, reverse-micelle routes; high temperature sintering and annealing; chemical, solvo-thermal and hydro-thermal processes; reactive and solvent mediated mechanochemical milling, high performance encapsulation, chemical templating and electrospinning methods have been employed extensively. Various metrological characterization methods namely structural, microstrucutral, elemental, chemical, surface/interface, thermal calorimetric, volumetric, gravimetric, gas sorption and gas quantification, have been carried out using XRD, Neutron diffraction, HRTEM, SEM, EDAX, DSC, TGA, PCT, BET, FTIR, RAMAN, UV-Vis, GC/MS, Atomic Absorption, and other related techniques. The structure-property relations of the as-developed materials’ have been analyzed based on both experimental and theoretical calculations. Potential applications using the materials’ developed from this research such as (i) reversible hydrogen storage in both stationary and on-board fuel cell vehicles, (ii) indoor water/air detoxification and disinfection, (iii) sunlight assisted electrofuel production, (iv) Oil-spill soils and sediments characterization and treatment, (v) electrochemical batteries and fuel cell devices, (vi) carbon (gaseous) capture and sequestration, (vii) MRI diagnostics imaging and targeted drug delivery etc. are discussed briefly during this presentation.
Dr. Srinivasan has been an Assistant Professor in the Department of Physics, Tuskegee University, Tuskegee, AL 36088, since the Fall Semester 2009, and a Visiting Research Associate with the Clean Energy Research Center of the University of South Florida, Tampa, FL, since 2010. Previously, Dr. Srinivasan was an adjunct instructor at the ITT Technical Institute in Clearwater, FL. Dr. Srinivasan received in 2000 the Ph.D. in Solid State and Condensed Matter Physics from Banaras Hindu University in India, and the USA Certification in Materials Science & Characterization in 2008 from the University of South Florida. Dr. Srinivasan has received several grants, numerous honors and awards, and his research interests are in Solid State Physics, Materials Science, Renewable Energy, Intermetallic Alloys, Photocatalysis, DFT & ab-initio studies, Inorganic Chemistry, Hydrogen Storage Materials, and Nanotechnology.
Refreshments will be served at 12:45 PM