A5100636162- Corrosion Behavior and Inhibition
- Concrete Corrosion and Durability
- Hydrogen embrittlement and corrosion behaviors in metals
- Electrochemical Analysis and Applications
- Conducting polymers and applications
- Ionic liquids properties and applications
- Antimicrobial agents and applications
- Welding Techniques and Residual Stresses
- Smart Materials for Construction
- Marine Biology and Environmental Chemistry
- Advanced Chemical Physics Studies
- Polymer Nanocomposites and Properties
- nanoparticles nucleation surface interactions
- Silicone and Siloxane Chemistry
- Extraction and Separation Processes
- Polymer Nanocomposite Synthesis and Irradiation
- Synthesis and biological activity
- Phytochemistry and Bioactive Compounds
- Multicomponent Synthesis of Heterocycles
- Analytical chemistry methods development
- Quantum, superfluid, helium dynamics
- Synthesis and Characterization of Heterocyclic Compounds
University of KwaZulu-Natal
2025
University of Delhi
2014-2022
Presidency University
2014-2022
University of Massachusetts Amherst
1994
Abstract Polyurethane based tri-block copolymers namely poly(N-vinylpyrrolidone)-b-polyurethane-b-poly(N-vinylpyrrolidone) (PNVP-PU) and poly(dimethylaminoethylmethacrylate)-b-polyurethane-b-poly(dimethylaminoethylmethacrylate) (PDMAEMA-PU) were synthesized through atom transfer radical polymerization (ATRP) mechanism. The polymers characterized using nuclear magnetic resonance (NMR) spectroscopy gel permeation chromatography (GPC) methods. corrosion inhibition performances of the compounds...
Two polyurethane based triblock copolymers, namely, poly(N-isopropylacrylamide)-b-polyurethane-b-poly(N-isopropylacrylamide) (PIA-PU-PIA) and poly(tert-butylacrylate)-b-polyurethane-b-poly(tert-butylacrylate) (PtBA-PU-PtBA), were synthesized via atom transfer radical polymerization (ATRP) mechanism characterized. The inhibition potentials of the polymers on mild steel corrosion in 0.5 M H2SO4 studied using electrochemical, scanning electron microscopy (SEM), atomic force (AFM) techniques....
AISI 316L and 316LVM stainless steels in annealed (solution quenched from 1050 °C) rolled (10% 20% cold work) conditions were assessed for their long term electrochemical corrosion behavior simulated body fluid (SBF) at 37 °C. The techniques used the characterization of resistance weight loss method, impedance spectroscopy (EIS) potentiodynamic polarization. Scanning electron microscopy (SEM) was to investigate surface morphologies alloys after polarization tests. Surface analysis films...
ABSTRACT In this work, Calotropis procera latex extract (CPLE) was evaluated as an environmentally benign corrosion inhibition on mild steel in 1‐M HCl using gravimetric, electrochemical, surface, and computational approaches. The results revealed that CPLE exhibited efficient inhibitor with the efficiency of 94.26% 93.10% at 200‐ppm concentration from electrochemical weight loss studies, respectively, deviation between these is within accepted uncertainty due to methods used well...
Electrochemical results show that the EBTPPB compound has good inhibiting features for MS corrosion in a corrosive medium, with efficiencies of approximately 98% at an optimum concentration.
A mixed quantum-classical approach is used to study the dissociative sticking of H2 on Cu(110). The method includes all six molecular degrees freedom: three quantum mechanically and classically. Dissociation probabilities are computed as a function translational energy for several rotational vibrational states. These results averaged together compute total both hot nozzle seeded beam conditions. contributions various types motion dissociation discussed. nature orientation during also examined.
The effect of Benzyl triphenyl phosphonium chloride (BTPPC) on the corrosion mild steel in a solution 0.3 M phosphoric acid has been investigated at various inhibitor concentrations and temperatures by Potentiodynamic Polarization Studies, Potentiostatic Electrochemical Impedance Spectroscopy Studies (EIS), Temperature Kinetic Scanning Electron Microscopy (SEM). Results obtained from polarization studies reveal that BTPPC is mixed type for acid. show non-passivating inhibitor. behavior H3PO4...
The effect of benzyl triphenyl phosphonium chloride (BTPPC) and halide ion (KI) on the corrosion mild steel in a solution 0.3 M phosphoric acid have been investigated at various inhibitor concentrations temperatures by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), temperature kinetic, scanning electron microscopy (SEM) atomic force (AFM) studies, respectively. Results obtained from polarization reveal that BTPPC KI are mixed type inhibitors for acid. synergistic...
Abstract The use of hybrid fillers can replace conventional nanoparticles in the area fabrication nanocomposites due to their superior properties owing synergistic action from individual components. Here we prepared for first time, polyhedral oligomeric silsesquioxane and multiwalled carbon nanotube filler based natural rubber by two‐roll mill mixing method. filler‐polymer interactions were studied frequency sweep strain rheological measurements. cure characteristics threw light into effect...
Separation of aromatic solvents, from mixtures containing aliphatic solvents as the major fraction, is important, inter alia, for its reuse in industrial processes. This report deals with use a designed and synthesized ionic liquid (N-butyl-N-methyl-2-oxopyrrolidonium bromide) separation benzene, toluene, ethylbenzene, xylene (BTEX), including all isomers xylene. For comparison purposes, previously-used (1-ethyl-3-methylimidazolium ethyl sulphate) was also used. The experimental parameters...
The inhibition effect of the (2-Hydroxyethyl) triphenyl phosphonium bromide (HETPB) on mild steel corrosion in 0.5 M H2SO4 have been determined by electrochemical techniques like potentiodynamic polarization (PDP), potentiostatic (PSP) and impedance spectroscopy studies (EIS). Potentiodynamic study reveal that HETPB is an anodic type inhibitor with 98% efficiency at concentration range (1×10-2 to 4×10-3) for sulfuric acid. Potentiostatic shows a non-passivating higher concentrations act as...
Heterocyclic compounds have a significant role in our daily lives. These make up the biggest and most diverse organic compound family. one or more hetero atoms their molecular structure. The number of heterocyclic is growing fast as result extensive synthetic research usefulness chemistry. They might be cyclic acyclic. Primarily, they are utilized medications, agrochemicals, veterinary goods. In addition, used sanitizers, developers, antioxidants, corrosion inhibitors, copolymers, colouring...