Solid State and Structural Chemistry Unit (SSCU): Recent submissions
Now showing items 281-300 of 309
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Investigation Of Transition Metal Oxides Of Perovskite, Pyrochlore And Rutile Structures Towards Realization Of Novel Materials
(2011-01-21)Materials chemistry is essentially concerned with the design/synthesis of new solids endowed with functional properties that could be of relevance to today’s materials technology. Among the large variety of solid materials ... -
Synthesis, Structure And Photocatalysis Of Orthovanadates, Novel Approaches For The Crystallization Of Anhydrous Nucleobases And Ab Initio Structure Determination Of A Drug Intermediate From Powder X-ray Diffraction Data
(2010-10-13)The thesis begins with a brief introduction and relevant literature references. The novelty of synthesis, methodology and results of the work reported in the thesis and highlighted subsequently. The thesis consist of three ... -
Theoretical Approaches For Modelling Molecular Magnetism
(2010-10-05)In this thesis we have developed electronic and spin model Hamiltonians to understand magnetism in molecule based magnets like photomagnets, high-nuclearity transition metal complexes and single molecule magnets. In ... -
Synthesis, Structure And Redox Catalytic Properties Of Pt And Pd Ion Substituted Ce1-xMxO2(M= Ti, Zr & Hf) Oxygen Storage Capacity Nano-materials
(2010-09-28)Three-way catalysis (TWC) involves simultaneous removal of the three pollutants (i.e., CO, NOx, and HCs) which led to the branch of auto-exhaust catalysis. CeO2 has become the main component of TWC catalyst because of its ... -
Investigations On Size Dependence Of Diffusivity In Condensed Media
(2010-08-24)Diffusion plays an important role in a number of processes like heterogeneous catalysis, corrosion, separation and purification of chemicals of industrial importance, steel hardening, fuel cells, and solid electrolytes for ... -
Spectral Simplification In Scalar And Dipolar Coupled Spins Using Multiple Quantum NMR : Developments Of Novel Methodologies
(2010-07-28)Spin selective MQ-SQ correlation has been demonstrated by either selective pulses in homo-nuclear spin systems in isotropic and weakly orienting chiral media or by nonselective pulses in hetero-nuclear spin systems in ... -
Studies On Polymer Hydrogel Electrolytes For Application In Electrochemical Capacitors And Direct Borohydride Fuel Cells
(2010-07-26)In recent years, electrochemical capacitors have emerged as devices with the potential to enable major advances in electrical energy storage. Electrochemical capacitors (ECs) are akin to conventional capacitors but employ ... -
Investigation Of Electronic Structure Of Transition Metal Oxides Exhibiting Metal-insulator Transitions And Related Phenomena
(2010-07-26)Transition metal oxides have proven to be a fertile research area for condensed matter physicists due to the fascinating array of superconducting, magnetic and electronic properties they exhibit. A particular resurgence ... -
Structure And Dynamics Of Constrained Water : Microscopic Study Of Macromolecular Hydration Using Computer Simulations
(2010-06-04)The thesis, which contains nine chapters, reports extensive large scale atomistic molecular dynamics (MD) simulation studies of water structure and dynamics at the surface of an anionic micelle, hydration layer of two ... -
Doping And photophysical Properties Of II-VI Semiconductor Nanocrystals
(2010-06-03)Semiconductor nanocrystals with sizes comparable to the corresponding bulk excitonic diameter exhibit unique size-dependent electronic and optical properties resulting from quantum confinement effect. Such nanocrystals not ... -
Synthesis, Characterization, Properties And Growth Of Inorganic Nanomaterials
(2010-06-03)The thesis consists of eight chapters of which the first chapter presents a brief overview of inorganic nanostructures. Synthesis and magnetic properties of MnO and NiO nanocrystals are described in Chapter 2, with emphasis ... -
Gas Phase And Electrocatalytic Reaction Over Pt, Pd Ions Substituted CeO2, TiO2 Catalysts and Electronic Interaction Between Noble Metal Ions And The Reducible Oxide
(2010-06-02)Among the various heterogeneous catalytic reactions three way catalysis (TWC), catalytic combustion of hydrogen, water gas shift reaction (WGS) and preferential oxidation of CO (PROX) in the hydrogen rich stream are some ... -
Investigation Of Electronic And Magnetic Structure Of Transition Metal Oxides With Emphasis On Magnetoresistive Systems
(2009-09-10)Electronic structure of transition metal oxides has been a subject of intense research since decades due to the wide spectrum of properties that they exhibit, like high temperature superconductivity, metal-insulator ... -
Noble Metal And Base Metal Ion Substituted Ceo2 And Tio2 : Efficient Catalysts For Nox Abatement
(2009-08-07)In recent times, as regulations and legislations for exhaust treatment have become more stringent, a major concern in the arena of environmental catalysis is to find new efficient and economical exhaust treatment catalysts. ... -
Investigations Of Open-Framework Metal Phosphates, Phosphites And Phosphite-Oxalate Materials
(2009-05-19)Open-framework inorganic materials constitute an important area of study in materials chemistry, because of their potential applications in areas such as sorption and catalysis. After the discovery of nanoporous aluminium ... -
Theoretical And Computer Simulation Studies Of Vibrational Phase Relaxation In Molecular Liquids
(2009-05-18)In this thesis, theoretical and computer simulation studies of vibrational phase relaxation in various molecular liquids are presented. That includes liquid nitrogen, both along the coexistence line and the critical isochore, ... -
Structure, Organization And Phase Transitions In Anchored Alkyl Chain Bilayers In Layered Organic-Inorganic Hybrids
(2009-04-09)This thesis deals with the conformation and phase-transitions in anchored alkyl chain bilayer assemblies in organic-inorganic hybrids. The alkyl chain bilayers in organic-inorganic hybrids bear a striking resemblances to ... -
Studies On Direct Methanol And Direct Borohydride Fuel Cells
(2009-03-09)A fuel cell is an electrochemical power source with advantages of both the combustion engine and the battery. Like a combustion engine, a fuel cell will run as long as it is provided fuel; and like a battery, fuel cells ... -
Growth Kinetics And Electronic Properties Of Semiconducting Nanocrystals In The Quantum Confined Regime
(2009-03-04)Properties of nanocrystals are extremely sensitive to their sizes when their sizes are smaller or of the order of the excitonic diameter due to the quantum confinement effect. The interest in this field has been concentrated ... -
Investigations Of Open-Framework Metal Carboxylates, Sulfates And Related Materials
(2008-10-13)Open-framework materials constitute an important area of study in materials chemistry, because of their potential applications in areas such as sorption and catalysis. Furthermore, these materials exhibit fascinating ...