http://localhost:8080/xmlui/handle/123456789/1 Research Scholars 2026-04-09T07:53:40Z http://localhost:8080/xmlui/handle/123456789/5010 Synthesis and applications of hypervalent iodine compounds and metal organic frameworks Rimi Hypervalent iodine reagents have remarkable history as valuable reagents for newlineinnumerable oxidative transformations since the synthesis of first hypervalent iodine newlinecompound; (dichloroiodo)benzene. These reagents served as flipside of toxic heavy newlinemetal oxidants due to their ease of availability, less-toxicity and selectivity. On the newlineother hand, metal-organic frameworks have been found as efficient catalysts in various newlinefields such as sensing, biomedicine, catalysis, adsorption and electrochemical newlineapplications. In this thesis, we delved into synthetic applications of hypervalent iodine newlinereagents and metal-organic frameworks (MOFs). In context to hypervalent iodine newlinereagents, the thesis presents the design and synthesis of some new iodoarenes, newlinefollowed by investigating their catalytic activity towards diverse oxidative newlinetransformations. Besides, some biologically active pyrazole-tethered isoxazoles have newlinebeen synthesized by utilizing diacetoxyiodobenzene in presence of trifluoroacetic acid. newlineAdditionally, the thesis explores the catalytic efficiency of diiodo-precatalysts newlineembedded within MOFs, which exhibit remarkable recyclability in the oxidation of newlinehydroquinone across three cycles. The research also ventures into the field of newlineiodonium salts, detailing the design of new salts and the attempts for their synthesis. newlineOn the MOF front, the synthesis of new cauliflower-like palladium-doped MOF newlinematerials is presented. These palladium-doped MOF material demonstrates its utility newlinein the degradation of dyes and the reduction of nitroaromatic compounds. Notably, the newlinepalladium-loaded MOF material exhibit excellent recyclability in the degradation of newlineCongo red dye and the reduction of 4-nitrophenol. newlineThe findings of this thesis underscore the versatility of hypervalent iodine reagents and newlineMOFs, paving the way for their increased adoption in various fields of chemistry and newlinematerial science. newline Kumar, Ravi and Uttam, Bhawna 2024-10-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/5009 Study of nano material based corrosion inhibitor for metal surface Himanshi The work focuses on synthesizing metal/metal oxide/other nanomaterials and evaluating their corrosion inhibition efficiency on mild steel using weight loss studies, EIS (LPR, PDP, AC impedance), and theoretical analyses. TiOand#8322; NPs, TiOand#8322;/PVP NC, CeOand#8322; NPs, CH-CeOand#8322; NC, PD/CeOand#8322; NC, ZnO NPs, ZnO/PAA NC, and MnO NPs were synthesized via chemical methods such as co-precipitation, sol-gel, and in-situ addition, and characterized using UV-Vis, FT-IR, XRD, SEM/EDAX. Their anti-corrosive performance was tested across 100 500 ppm concentrations and 308 338 K for 3 4 hours. Inhibition efficiency increased with concentration and decreased with temperature, while corrosion rate showed the opposite trend. Thermodynamic and kinetic parameters indicated an endothermic corrosion process (positive and#916;H) and positive and#916;Gads, implying instability of the activation complex. Adsorption followed the Langmuir isotherm, showing mainly chemisorption with some physisorption. EIS results showed increased Rct and decreased Cdl with higher inhibitor concentration, confirming reduced charge transfer and greater surface coverage. Potentiodynamic polarization revealed mixed-type inhibition. Surface analysis (AFM, optical microscopy) showed reduced steel degradation, especially with nanocomposites; doped MnO NPs further lowered surface roughness due to synergistic effects. Theoretical studies (EHOMO, ELUMO, and#956;, and#967;, I, A, and#948;N) supported strong chemical adsorption through electron donation from inhibitors to vacant d-orbitals of mild steel. newline Kumar, Ravi and Uttam, Bhawna 2024-10-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/3970 Strategies for designing online marketing platform using adaptive data analytic techniques Mishra, Atul 2024-08-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/3412 Tailoring optoelectronics properties of 2D transition metal dichalcogenides for energy harvesting applications Shweta Kumar, Arun and Singh, Vinamrita 2023-12-01T00:00:00Z