A5028871733- Analytical Methods in Pharmaceuticals
- Mesoporous Materials and Catalysis
- Antibiotics Pharmacokinetics and Efficacy
- Carbon Dioxide Capture Technologies
- Fuel Cells and Related Materials
- Zeolite Catalysis and Synthesis
- Covalent Organic Framework Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Analytical Chemistry and Chromatography
- Nanoparticles: synthesis and applications
- Advanced Battery Materials and Technologies
- Membrane Separation and Gas Transport
- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Advanced battery technologies research
- Layered Double Hydroxides Synthesis and Applications
- Analytical Chemistry and Sensors
- Pharmacological Effects and Assays
- Moringa oleifera research and applications
- Aerogels and thermal insulation
- Catalysis and Hydrodesulfurization Studies
- X-ray Diffraction in Crystallography
- Medicinal Plants and Neuroprotection
- Crystallization and Solubility Studies
- Dental materials and restorations
Anna University, Chennai
2010-2024
Ragas Dental College & Hospital
2020
Hanseo University
2010-2015
Korea Carbon Capture & Sequestration R&D Center
2013-2014
PSG INSTITUTE OF TECHNOLOGY AND APPLIED RESEARCH
2008
Proton-conducting sulfonated polymer metal–organic framework (MOF)-based composite membranes were synthesized by anchoring the nickel MOF (Ni-MOF) to aromatic backbone. In this work, we two different polymers, poly(1,4-phenylene ether sulfone) (PEES) and poly ketone (PEEK), with a controllable sulfonation degree, Ni-MOF was incorporated into polymers prepare electrolyte membrane. The effect of an as pendant moiety on backbone had significant properties such water uptake, thermal, mechanical,...
A novel Zr-fumarate (Zr-fum) metal organic framework was synthesized by the reaction of zirconium chloride and fumaric acid under solvothermal conditions without a formic modulator. The material characterized powder X-ray diffraction, Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FT-IR), Brunauer-Emmett-Teller (BET) techniques. results XRD showed presence amorphous crystalline phases. surface area average pore diameter were...
Li, Zr doped porous silica was synthesized in one pot and investigated for low temperature CO2 adsorption. The nanoparticle characterized by X-ray diffraction (XRD), N2 adsorption–desorption measurement, thermogravimetric analysis (TGA) scanning electron microscopy (SEM). specific surface area, average pore diameter volume were determined to be 962 m2/g, 2.3 nm 0.56 cm3/g respectively. ICP-AES revealed a metal content of 4 wt.% (Zr) 3.42 (Li). Their adsorption capacity tested at room...
Abstract Electrolyte membranes play a critical role as their properties directly influences the performance of fuel cell. A copper‐based metal organic framework (MOF) anchored polymeric blend membrane was developed for cell application. Cu‐MOF serves an excellent filler material due to its small size, high degree crystallinity and surface area. Through XRD analysis well defined crystallite sites evidenced average size measured ∼ 0.3 Å. The acidic functional group in MOF interacts with...
We have discovered formation of hypercross-linked conjugated quinonoid chromophores (polymers) with broad light absorption characteristics during cross-linking aromatic monomers, such as benzene, naphthalene, anthracene, phenanthrene and 1,3,5-trimethyl benzene 1,3,5-trioxane in the presence an FeCl3 catalyst. The para or ortho –CH2 groups that bridge monomers were dehydrogenated polymerization to form quinonoids. confirmed by their DRS-UV Vis FTIR spectra. also similar polymers reported...
Since the development of resin based composites, several improvements have been made to improve their physical and chemical properties. In an attempt fasten simplify restoration process, a new class composite materials, called bulk fill composites introduced, which has claimed achieve depth cure 4 mm without affecting properties material.
A novel, fast and optimized etiquette for the production of silver nanoparticles using root extract Cyphostemma adenocaule (CA) is reported in our manuscript. The plant known to possess many...
Chloro-functionalized mesoporous MCM-41, SBA-15, MCM-48 and KIT-6 were synthesized by co-condensation of 3-chloropropyl-trimethoxy-silane (CPTMS) rice husk ash sodium silicate solution, which is subsequently grafted with a heterocyclic amine, homopiperazine (HPZ). X-ray powder diffraction BET analysis the chloro-functionalized silicas confirmed similarity between their structural properties those obtained from conventional silica sources. CO2 adsorption studies all HPZ-grafted exhibited 8-10...
Abstract Polymer composite membrane composed of zinc‐trimesic acid based metal–organic framework (ZT‐MOF) and sulfonated poly(ether ether sulfone) (SPEES) for proton exchange fuel cell has been fabricated by solution casting technique. Poly(ether was using concentrated sulfuric as a sulfonating agent the degree sulfonation calculated 36%. The structural analysis membranes investigated Fourier transform infrared spectroscopy, scanning electron microscopy, X‐ray diffraction, photoelectron...
This work focuses on the design and development of membranes with constructive physicochemical electrochemical properties for fuel cell applications. Herein, novel electrolytes are prepared by blending sulfonated poly(1,4-phenylene ether sulfone) (sPEES) polyimide (PI). To improve ion-conducting properties, a zinc metal organic framework (Zn-MOF) is synthesized via solvothermal sonochemical methods. From XRD data, average crystallite size MOF found to be ∼27.8 nm. For preparation composites,...