Institution
Central Mechanical Engineering Research Institute
Facility•Durgapur, India•
About: Central Mechanical Engineering Research Institute is a facility organization based out in Durgapur, India. It is known for research contribution in the topics: Reynolds number & Machining. The organization has 590 authors who have published 1268 publications receiving 23190 citations.
Topics: Reynolds number, Machining, Heat transfer, Graphene, Adsorption
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the role of Fe(II)/Fe(III) species in the sensitization process of various substrates helping it in the process to photocatalytic degradation reactions of organic pollutants has been highlighted.
Abstract: In this paper, visible light assisted degradation of various pollutants using different methods has been briefly reviewed. These methods have been broadly divided into two main categories. In the first category, the use of TiO2 semiconductor facilitating the photooxidative degradation of organic pollutants has been presented. This semiconductor has been treated in several ways. A major aim of these treatments is to maximize the range of wavelength in the visible light region for wastewater treatment. In the second category, various ways of degrading organic pollutants without the use of TiO2 semiconductor have been briefly outlined. The role of Fe(II)/Fe(III), etc., species in the sensitization process of various substrates helping it in the process to photocatalytic degradation reactions of organic pollutants has been highlighted. Also, the usage of semiconductors other than TiO2 has been critically analyzed.
1,105 citations
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TL;DR: The objective of this review is to provide comprehensive knowledge and information on the sensors operating on different transduction principles, ranging from electrochemical to immunosensors, being used for the detection of explosives as they pose a threat for both health and security of the nation.
439 citations
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TL;DR: Electrochemical findings showed that inhibitors impart high resistance towards charge transfer across the metal-electrolyte interface and behaved as mixed type inhibitors.
Abstract: In order to evaluate the effect of the functional group present in the ligand backbone towards corrosion inhibition performances, three Schiff-base molecules namely, (E)-4-((2-(2,4-dinitrophenyl)hydrazono)methyl)pyridine (L(1)), (E)-4-(2-(pyridin-4-ylmethylene)hydrazinyl)benzonitrile (L(2)) and (E)-4-((2-(2,4-dinitrophenyl)hydrazono)methyl)phenol (L(3)) were synthesized and used as corrosion inhibitors on mild steel in 1 M HCl medium. The corrosion inhibition effectiveness of the studied inhibitors was investigated by weight loss and several sophisticated analytical tools such as potentiodynamic polarization and electrochemical impedance spectroscopy measurements. Experimentally obtained results revealed that corrosion inhibition efficiencies followed the sequence: L(3) > L(1) > L(2). Electrochemical findings showed that inhibitors impart high resistance towards charge transfer across the metal-electrolyte interface and behaved as mixed type inhibitors. Scanning electron microscopy (SEM) was also employed to examine the protective film formed on the mild steel surface. The adsorption as well as inhibition ability of the inhibitor molecules on the mild steel surface was investigated by quantum chemical calculation and molecular dynamic (MD) simulation. In quantum chemical calculations, geometry optimized structures of the Schiff-base inhibitors, electron density distribution in HOMO and LUMO and Fukui indices of each atom were employed for their possible mode of interaction with the mild steel surfaces. MD simulations revealed that all the inhibitors molecules adsorbed in parallel orientation with respect to the Fe(110) surface.
352 citations
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TL;DR: In this article, the corrosion inhibition mechanism of two mercapto-quinoline Schiff bases, eg., 3-phenylimino)methylquinoline-2-thiol (PMQ) and 3-5-methylthiazol 2-yliminoylmethyl quinoline-quinoline (MMQT), on mild steel surface is investigated by quantum chemical calculation and molecular dynamics simulation.
Abstract: Corrosion inhibition mechanism of two mercapto-quinoline Schiff bases, eg., 3-((phenylimino)methyl)quinoline-2-thiol (PMQ) and 3-((5-methylthiazol-2-ylimino)methyl) quinoline-2-thiol (MMQT) on mild steel surface is investigated by quantum chemical calculation and molecular dynamics simulation. Quantum chemical parameters such as EHOMO, ELUMO, energy gap (ΔE), dipolemoment (µ), electronegativity (χ), global hardness (η) and fraction of electron transfers from the inhibitor molecule to the metallic atom surface (ΔN) have been studied to investigate their relative corrosion inhibition performance. Parameters like local reactive sites of the present molecule have been analyzed through Fukui indices. Moreover, adsorption behavior of the inhibitor molecules on Fe (1 1 0) surface have been analyzed using molecular dynamics simulation. The binding strength of the concerned inhibitor molecules on mild steel surface follows the order MMQT>PMQ, which is in good agreement with the experimentally determined inhibition efficiencies. In view of the above, our approach will be helpful for quick prediction of a potential inhibitor from a lot of similar inhibitors and subsequently in their rational designed synthesis for corrosion inhibition application following a wet chemical synthetic route.
339 citations
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TL;DR: Density functional theory (DFT) and molecular dynamics simulation have been used to determine the relationship between molecular configuration and their inhibition efficiencies and the order of inhibition performance obtained from experimental results is successfully verified by DFT and MD simulation.
Abstract: Corrosion inhibition performance of 2-(2-hydroxybenzylideneamino)phenol (L1), 2-(5-chloro-2-hydroxybenzylideneamino)phenol (L2) and 2-(2-hydroxy-5-nitrobenzylideneamino)phenol (L3) on the corrosion behaviour of mild steel surface in a 1 M hydrochloric acid (HCl) solution is investigated by sophisticated analytical methods like potentiodynamic polarization, electrochemical impedance spectroscopy and weight loss measurements. Polarization studies showed that all the compounds are mixed type (cathodic and anodic) inhibitors and the inhibition efficiency (η%) increased with increasing inhibitor concentration. The inhibition actions of these Schiff base molecules are discussed in view of blocking the electrode surface by means of adsorption of the inhibitor molecule obeying the Langmuir adsorption isotherm. Scanning electron microscopy (SEM) studies of the metal surfaces confirmed the existence of an adsorbed film. Density functional theory (DFT) and molecular dynamics (MD) simulation have been used to determine the relationship between molecular configuration and their inhibition efficiencies. The order of inhibition performance obtained from experimental results is successfully verified by DFT and MD simulation.
331 citations
Authors
Showing all 601 results
Name | H-index | Papers | Citations |
---|---|---|---|
Gautam Biswas | 63 | 721 | 16146 |
Tapas Kuila | 50 | 174 | 11448 |
Biswarup Satpati | 42 | 390 | 8462 |
Manoj K. Karmakar | 40 | 154 | 5406 |
Prabir Basu | 39 | 235 | 8048 |
Priyabrata Banerjee | 37 | 155 | 4499 |
Dilip Kumar Pratihar | 33 | 247 | 3544 |
Poulomi Roy | 30 | 47 | 6187 |
Himadri Chattopadhyay | 30 | 97 | 2437 |
Suresh Kumar | 29 | 407 | 3580 |
Naresh Chandra Murmu | 29 | 132 | 2968 |
Harish Hirani | 29 | 107 | 2271 |
Mrinal Pal | 27 | 102 | 1826 |
Tanmoy Chakraborty | 26 | 319 | 2782 |
Sudip Mondal | 25 | 51 | 1349 |