Course

Unit 1 Introduction to NanoHistorical introduction, Bulk vs. nano size, The concept of nano and it evolution. Size-dependence of properties. Electronic structure theory of metals and semiconductors. Quantum size effects. Metal nanoparticles, semiconductor quantum dots, Nano porous materials mesoporous and micro porous materials, carbon nanostructures: fullerenes, carbon nanotubes, micelles, bilayers, biological nanostructures.Unit II Nanomaterials and PropertiesSemiconductor nanoparticles optical and electronic properties, Nano porous materials meso porosity and micro porosity, Magic numbers, Surface Plasmon resonance, Mesoporous materials: SiO2 and TiO2 and their applications. Self-assembled nanostructures.Unit III basics and scale of nanotechnology(9 hours) Introduction Scientific revolutions Time and length scale in structures Definition of a nano system Dimensionality and size dependent phenomena Surface to volume ratio – Fraction of surface atoms Surface energy and surface stress- surface defects-Properties at nanoscale (optical, mechanical, electronic and magnetic).Unit IV Nanomaterials Synthesis and ApplicationsGeneral: Top down and bottom up approach, Chemistry of nanostructures and chemical synthesis -Wet chemical routes, solution phase and vapor phase synthesis, sol-gel synthesis. Synthetic methods for metal and semiconductor nanoparticles, Template-based synthesis of mesoporous metal oxides. Synthesis of carbon nanostructures and fullerenes, Special applications of semiconducting nanomaterials- Photo catalysis, super hydrophilicity, Self- cleaning applications, Dye sensitized solar cells and electrochromic device applications.Unit V Surface chemistry and Catalysis of nanomaterialsAdsorption by solids, Factors influencing adsorption. Adsorption isotherms – Freundlich and Langmuir adsorption isotherms, BET theory of multilayer adsorption (no derivation). Application of adsorption. General principles of catalysis – Typical mechanism, Catalysis and reaction energetic, Catalytic materials. Types of catalysis Homogeneous catalysis, Heterogeneous catalysis-adsorption and catalysis, Uni-molecular surface reaction- bimolecular surface reactions-Langmuir-Hinshelwood mechanism. Significance of catalysis. Catalytic Inhibitors, Poisons and Promoters.

TEXT BOOKS/ REFERENCES:1. C. P. Poole Jr. & F. J. Ownes. Introduction to Nanotechnology. Wiley India (2007),New Delhi.2. T. Pradeep. Nano: The Essentials. Tata McGra Hill (2007), New Delhi.3. K. J. Klabunde (Ed.) Nanoscale Materials in Chemistry, John Wiley & Sons (2001).4. Hari Singh Nalwa (Ed.), Nanostructured materials and nanotechnology, Academic Press,New York (2002).5. D. Vollath. Nanomaterials, Wiley-VCH (2008).6. K.K. Cathopadhyay & A.N. Banerjee, Introduction to Nanoscience and Technology, PHlLearning Pvt. Ltd. (2009).7. G. A. Ozin, A. C. Arsenault, L. Cademartiri, Nanochemistry: A Chemical Approach toNanomaterials, Royal Society of Chemistry (2009) London.8. P. Atkins & J. De Paula, Atkinss Physical Chemistry, 8th Edition, W.H. Freeman & Co.,2006.9. G. K. Velupillai, Physical Chemistry, Printice Hall of India.10. K. J. Laidler, J. H. Meiser and B. C. Sanctuary, Physical Chemistry, Houghton MifflinCompany, New York, 2003.11. Richard I. Masel, Chemical Kinetics and Catalysis , Wiley Inter science, 2001.12. Skoog and West, Principles of Instrumental Analysis