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Öğe Computational and experimental studies on the corrosion inhibition performance of an aerial extract of Cnicus Benedictus weed on the acidic corrosion of mild steel(Elsevier, 2022) Thakur, Abhinay; Kaya, Savas; Abousalem, A. S.; Sharma, Shveta; Ganjoo, Richika; Assad, Humira; Kumar, AshishThe corrosion inhibition investigation of aerial extract of Cnicus Benedictus, a weed referring to the Asteraceae family has been evaluated on the mild steel corrosion in 0.5 M HCl with the employment of the weight-loss method, potentiodynamic polarization measurements (PDP) and electrochemical impedance spectroscopy (EIS) techniques. This investigation demonstrated Cnicus Benedictus extract (CBE) as a green and sustainable mild steel corrosion inhibitor in 0.5 M HCl media exhibiting an inhibition efficacy of 92.45% at 1000 ppm. With the increased concentration of CBE, the value of i(corr )and corrosion rate (C-R) decreased significantly from 7.4114 to 0.97438, revealing the protective effect of CBE on mild steel. The deposition of a highly defensive coating on the mild steel surface was demonstrated by the contact angle measurements. Additionally, the increase in the K(ads )values indicated a stronger interaction between the inhibitor molecules and metal surface. Furthermore, density functional theory (DFT) and Monte Carlo simulations have been utilized to validate the significant inhibition characteristic attained by the experimental study and to suggest an adsorption mechanism.(C) 2022 Institution of Chemical Engineers. Published by Elsevier Ltd. All rights reserved.Öğe Coordination Polymers as Corrosion Inhibitors(American Chemical Society, 2022) Thakur, Abhinay; Assad, Humira; Sharma, Shveta; Ganjoo, Richika; Kaya, Savas; Kumar, AshishCorrosion is a destructive phenomenon that has catastrophic outcomes on technical and commercial applications, specifically in oil and gas-related enterprises. Thus, mitigating metallic corrosion is a crucial need of technological, economic, environmental and elegant need that could save huge money on equipment, machinery and construction. Polymers have become a preferred candidate for the corrosion inhibition of numerous metals/alloys in various corrosive media due to their ability to form complexes with metal ions that occupy a large area by their functional groups, thereby preventing the metal surface from aggressive ions existing in the corrosive medium. For instance, it is remarkable to attain the inhibition efficacy of 93% at an optimum concentration of 800 ppm at 50 °C. Taking into account such extreme corrosion inhibiting efficacy of coordination polymers; herein, in this chapter, we discuss the effects of novel coordination polymers such as polyacrylamide (PACM), cerium(III)-melamine coordination polymer (CMCP), copper(I) coordination polymer:1H-benzotriazole: poly[l3-benzotria- zolato-j3N1:N2:N3-copper(I)], etc., on the control or reduction of corrosion. Additionally, the impact of temperature on the corrosion rate will be discussed along with the relative inhibition mechanisms. © 2022 American Chemical SocietyÖğe Electrochemical and computational investigations of the Thysanolaena latifolia leaves extract: An eco-benign solution for the corrosion mitigation of mild steel(Elsevier, 2023) Thakur, Abhinay; Kumar, Ashish; Kaya, Savas; Benhiba, Fouad; Sharma, Shveta; Ganjoo, Richika; Assad, HumiraThe development of eco-benign corrosion inhibitors is gaining increased attention due to the non -biodegradability and toxic effects of conventional inhibitors. In this study, the anti-corrosive efficacy of Thysa-nolaena latifolia leaves extract (TLLE) has been evaluated on mild steel in an acidic solution (0.5 M HCl) by employing various approaches including gravimetric assessment, electrochemical measurements, scanning electron microscopy and energy dispersive X-ray spectroscopy. The outcomes demonstrated that with the increased concentration of TLLE from 50 ppm to 1000 ppm, the inhibition efficiency (IE%) elevated up to 93.90 % and the corrosion rate decreased significantly from 2.513 mm/yr to 0.203 mm/yr at 298 K. Moreover, it was revealed that at a higher concentration (1000 ppm), the Rp values increased from 30.784 ohm to 157.83 ohm with an Rct in value of 159.627 ohm cm2 suggesting the defensive film formation by TLLE molecules over the metallic surface. The quantum chemical analytics further underpinned the empirical findings, showing a high Delta E(eV) value of 0.239 and interaction and binding energies of-995.45 and 995.45 for TLLE molecules upon Fe (110) substrate. The findings indicate that TLLE has a promising prospect as an eco-benign and efficient inhibitor for preventing the corrosion of mild steel in corrosive environments.Öğe Fullerenes as anticorrosive coating materials(Elsevier, 2023) Ganjoo, Richika; Assad, Humira; Sharma, Praveen Kumar; Kaya, Savas; Kumar, AshishDue to the immense economic impact of corrosion, researchers and industry have worked to create more efficient coatings. These endeavors have resulted in the significant advancement of nanocomposite coatings made up of polymers and carbon nanostructures. Carbon-based nanoparticles have garnered considerable interest over the past two decades owing to their capability to exhibit superior tribological, mechanical, and electrical characteristics in numerous geometrical forms and proportions. The use of fullerene-C60 in the fabrication of nanocomposite coatings has lately gained widespread attention, assisting polymeric composites in enhancing their performance via the incorporation of nanofiller fortification into polymers as well as coatings. Fullerene-C60/polymer nanocomposites, in particular, exhibit improved anticorrosion and structural properties when compared to pure polymer components. Due to their distinctive aromatic nature and small diameter, in polymer reinforcement, fullerene C60 has been investigated as a nanofiller. Thus this chapter demonstrates how fullerene affects the mechanical characteristics of fullerene C60-epoxy nanocomposites, as well as the wear qualities of magnesium matrix composites. © 2023 Elsevier Inc. All rights reserved.Öğe Handling Keywords: MXene Nanomaterial Hazardous pollutant Adsorption Environmental remediation(Pergamon-Elsevier Science Ltd, 2022) Assad, Humira; Fatma, Ishrat; Kumar, Ashish; Kaya, Savas; Vo, Dai-Viet N.; Al-Gheethi, Adel; Sharma, AjitWith the massive development of industrialization, multiple ecological contaminants in gaseous, liquid, and solid forms are vented into habitats, which is currently at the forefront of worldwide attention. Because of the possible damage to public health and eco-diversity, high-efficiency clearance of these environmental contaminants is a serious concern. Improved nanomaterials (NMs) could perform a significant part in the exclusion of contaminants from the atmosphere. MXenes, a class of two-dimensional (2D) compounds that have got tremendous consid-eration from researchers for a broad array of applications in a variety of industries and are viewed as a potential route for innovative solutions to identify and prevent a variety of obstreperous hazardous pollutants from environmental compartments due to their exceptional innate physicochemical and mechanical features, including high specific surface area, physiological interoperability, sturdy electrodynamics, and elevated wettability. This paper discusses the recent progress in MXene-based nanomaterials' applications such as envi-ronmental remediation, with a focus on their adsorption-reduction characteristics. The removal of heavy metals, dyes, and radionuclides by MXenes and MXene-based nanomaterials is depicted in detail, with the adsorption mechanism and regeneration potential highlighted. Finally, suggestions for future research are provided to ensure that MXenes and MXene-based nanomaterials are synthesized and applied more effectively.Öğe Insight into the Corrosion Inhibition Behavior of Ionic Liquids for Metals and Their Alloys in Corrosive Media: A Comprehensive Review(American Institute of Physics Inc., 2023) Thakur, Abhinay; Bharmal, Ayan; Sharma, Shveta; Ganjoo, Richika; Assad, Humira; Kaya, Savas; Kumar, AshishOwing to the hazardous effects of frequently utilized corrosion inhibitors, as well as the critical health and safety laws governing their usage and storage, there is huge enthusiasm in finding efficient non-hazardous substitutes. Ionic liquids (ILs) have gotten a lot of attention in the last decade, owing to their intriguing qualities like non-inflammability, low volatility, less hazardous, superior thermal resilience, and capability for getting easily adsorb on the surface of the metal. This review article includes a compendium of recent scientific articles and reviews on ILs as corrosion inhibitors (mostly from 2015 to 2021). This article provides an overview of the utilization of ILs as corrosion inhibitors. Additionally, corrosion inhibitors are reviewed in detail, as well as their latest trends and advancements. © 2023 American Institute of Physics Inc.. All rights reserved.Öğe Insights into the role of nanotechnology on the performance of biofuel cells and the production of viable biofuels: A review(Elsevier Sci Ltd, 2022) Assad, Humira; Kaya, Savas; Kumar, P. Senthil; Vo, Dai-Viet N.; Sharma, Ajit; Kumar, AshishBiofuel cells (BFCs) are devices that use the metabolic reactions in microorganisms during the decomposition of organic pollutants to convert chemical energy from organic materials to electrical energy. Owing to their nonpolluting characteristics and price-effectiveness in contrast to fossil fuels, biofuels are rapidly gaining attraction as substitute resources of renewable energy. Although BFCs have numerous applications including waste management, biomaterials, and portable purposes, encouraging their use is difficult due to the limited lifetime and reduced power density. The majority of BFCs created to date are only capable of meeting the energy requirements of biomedical short-term implanted devices. To accelerate their development, however, the attention is shifting to the deployment of technology that will enhance their productivity. Nanotechnological approaches appear to be the most promising in this context. Nanotechnologies are one of the most intriguing scientific and technological revolutions in recent history, with applications in biofuels and bioenergy. Nanoparticles are gaining popularity among scientists due to their unique qualities, which allow them to be used in a variety of industries including agriculture, electronic devices, medicines, and food processing. The use of nanoscale materials in the production of BFCs has been extensively researched and reported as a viable technique for enhancing their performance. In this review, insights about BFCs, classification, and beneficial applications of biofuel cells are explored. The purpose of this work is to highlight recent advances in the development of various nanomaterials, such as metallic nanomaterials, magnetic nanomaterials, carbon nanoparticles, etc. for enhancing the efficiency of biofuel cells as well as biofuel production such as biodiesel, biohydrogen, biogas, and bioethanol synthesis, intending to enhance process yields. Furthermore, based on the current knowledge of numerous influencing factors on the efficacy of nanoparticles, current prospects and research needs in biofuel industrial operations are also identified and discussed.Öğe Overview and fundamentals of polymer nanocomposites(Elsevier, 2023) Assad, Humira; Sharma, Shveta; Kaya, Savas; Sharma, Praveen Kumar; Kumar, AshishMaterial science has grown in popularity and use as a result of a strong need for composite materials that combine the benefits of both components. There has been a surge of attention toward the tailoring the structural features of materials on a nanometer scale during the last few years all over the world. Nanocomposites materials have been extensively researched in the scientific literature because they provide significant property benefits even when the nanoparticle proportion is minimal. Incorporating inorganic nanoparticles into polymer matrices is a strong method for imparting their intriguing and complementary features to polymer products. Polymer nanocomposites formulation is an important part of polymer nanotechnology, and it has advanced in development owing to their novel characteristics after nanoparticle integration. After incorporating a range of nanoparticles that vary in form, shape, surface area, and chemical organization, many nanocomposites consisting of synthetic polymers and/or biopolymers have been explored. Thus, polymer composites have risen to the top of the list of technologically important materials due to their vast range of uses. In this chapter, we’ll look at some examples of nanocomposites that can be made using different methods such as in situ polymerization, electrospinning, solution casting, melt extrusion, etc. This chapter will provide an overview of processing and characterization techniques, as well as physical, chemical, biological, and rheological features of polymer nanocomposites (PNCs). To encourage future work on the creation of ever more promising materials, the current problems and possible applications of these composites are presented. Finally, a full assessment of recent developments and patents in the field is offered, gradually demonstrating the prospects for the establishment of a variety of polymer nanocomposite materials. © 2023 Elsevier Ltd. All rights reserved.Öğe Plant extracts as bio-based anticorrosive materials(Elsevier, 2023) Thakur, Abhinay; Assad, Humira; Kaya, Savas; Kumar, AshishOver the past decade, green chemistry has emphasized the need for preserving human health and the environment in a cost-effective manner with the goal of minimizing the use of commercially available toxic and dangerous corrosion inhibitors. Numerous researchers have subsequently concentrated on plant extracts as these are emerging as renewable, low-cost, widely available, and eco-friendly alternatives to existing toxic chemical corrosion inhibitors and thereby avoid revenue losses due to metallic corrosion of industrial equipment, appliances, or substrates. The availability of various functional groups of phytochemicals such as alkaloids, lipids, phenolic acids, saponins, quercetin, terpenoids, and other compounds allow their active participation in the adsorption process on the metallic surface in the presence of a corrosive environment to function as progressive corrosion inhibitors. This chapter briefly discusses the recent advances made in the use of eco-friendly plant extracts as green corrosion inhibitors for metals and their alloys in aggressive media. The effects of immersion time and temperature on the corrosion behavior of metals in the corrosive environment with the addition of extracts were also studied. Furthermore, the most important metrics for extract preparation, as well as ways to evaluate their inhibitory efficiency using a precise mechanism, have been highlighted. Finally, a critical analysis is presented together with an outlook on future directions. © 2023 Elsevier Inc. All rights reserved.Öğe Plant extracts as environmentally sustainable corrosion inhibitors II(Elsevier, 2022) Thakur, Abhinay; Assad, Humira; Kaya, Savaş; Kumar, AshishCorrosion control of metals is an important activity of technical, economic, environmental, and aesthetical growth. Plant extracts have traditionally emerged as eco-friendly, readily available, renewable and cost-effective substitutes for pre-existing toxic chemical corrosion inhibitors. Availability of various functional groups of phytochemicals such as alkaloids, lipids, phenolic acids, saponin, quercetin, terpenoids, and other compounds actively participate in the adsorption process on the metallic surface in the presence of a corrosive environment to function as corrosion inhibitors. This chapter aims is to delineate the potential of plant extracts, gums, essential oils to inhibit the corrosion on different metal surface. The effects of temperature, concentration on the corrosion behavior of metals in corrosive environment with the addition of extracts, were also studied. Additionally, the inhibition potential of these green corrosion inhibitors, including the techniques used to evaluate them and the relative inhibition mechanisms, are discussed. Finally, a critical analysis is addressed together with the outlook as regards future progressions. © 2022 Elsevier Inc. All rights reserved.Öğe Recent advancements in biosensing and biosensors(Elsevier, 2023) Thakur, Abhinay; Assad, Humira; Kaya, Savas; Kumar, AshishBiosensors research is a rapidly expanding discipline with vast numbers of articles published over the years and is a market worth billions of dollars. The use of biosensors has become critical in the fields of drug development, agriculture, biomedicine, food safety standards, and environmental monitoring. These biosensors have a range of vital features, including operational simplicity, high sensitivity, low-cost instrumentation, automation possibilities, and inherent miniaturization, such as biomarkers. Biosensors are important in the identification of biomarkers because they are simple to use and portable and allow real-time analysis. A powerful biomarker-based cancer diagnosis could improve early detection and intervention tremendously. Combining nanotechnology with biosensor systems could also improve diagnostic capability. This chapter discusses several biosensors and biosensing-based applications that are intended to promote science for the benefit of humans in various sectors. © 2023 Elsevier Inc. All rights reserved.Öğe Recent Progress in the Application of Electrochemically Rechargeable Metal-air Batteries: A Focus Review(American Institute of Physics Inc., 2023) Nidhi; Thakur, Abhinay; Fatma, Ishrat; Assad, Humira; Sharma, Shveta; Ganjoo, Richika; Kaya, SavasThe metal-air battery has become the primary power source since its invention in 1840 by Smee. Maiche demonstrated functional primary Zn–air batteries utilizing a porous platinized carbon cathode in 1878, which was the outcome of several outstanding scientist's and engineers' studies and endeavors. Owing to its high density, very low self-discharge, extremely lengthy lifetime, long cycling performances, and easy maintenance, metal-air batteries are effective energy storage systems for multifunctional electronic devices, electrical power grids, and electrified transportation such as EVs. Considering the fact that this topic is quickly growing and recruiting a significant number of researchers, the construction of next-generation metal-air batteries still face significant obstacles. A number of novel chemistries have been developed, resulting in improved energy density, long-term storage capacity, stability, and sustainability. The goal of this review is to initiate the basics and current advances in the field of metal-air batteries, as well as the fundamentals behind their functionality along with its components. © 2023 American Institute of Physics Inc.. All rights reserved.Öğe Study of Inhibitive Property of Pipotiazine Drug for Mild Steel in Acidic Medium(American Institute of Physics Inc., 2023) Sharma, Shveta; Ganjoo, Richika; Thakur, Abhinay; Assad, Humira; Kaya, Savas; Kumar, AshishThe corrosion inhibitory activity of the Pipotiazine drug molecule was studied on mild steel in 1M HCl with variety of research approaches as weight loss and electrochemical analysis including potentiodynamic polarization and electrochemical impedance spectroscopy techniques. Drug molecule successfully inhibit the corrosion of metallic sample. Results revealed the increased inhibition efficiency with increased concentration of Pipotiazine and at a concentration of 1000 ppm, the maximum inhibition efficiency was reached at 73% and inhibitor showed a mixed type of behavior. Protection of metallic sample was further validated with the scanning electron microscopy. Surface study also confirmed the reduction in roughness, on the addition of Pipotiazine drug molecule. © 2023 American Institute of Physics Inc.. All rights reserved.Öğe Surface characterization for corrosion monitoring(Elsevier, 2023) Sharma, Shveta; Ganjoo, Richika; Assad, Humira; Kaya, Savas; Kumar, AshishCorrosion is a common problem in many sectors that use metallic structures. Corrosion affects a wide range of technical materials, including microelectronics, orthopedic implants, large civil infrastructure projects, and the things we use on a daily basis. This issue leads to significant material and economic losses as a result of machinery replacements or plant shutdowns for maintenance. Even it poses a significant hazard to human safety and health. Numerous methods have been devised to combat the problem. A wide range of techniques like weight loss, electrochemical analysis, theoretical analysis, and surface morphological techniques are employed to assess the level of protection. The main objective of this chapter is to discuss the various conventional surface morphological techniques like scanning electron microscopy, atomic force microscopy, X-ray diffraction spectroscopy, X-ray photoelectron spectroscopy (XPS) along with some new fast-growing techniques like scanning electrochemical microscopy, etc. employed in corrosion study will be discussed. © 2023 Elsevier Inc. All rights reserved.
