Article
Chemistry, Physical
Ragini L. Minagalavar, S. K. Rajappa, Manohar R. Rathod, Ashok M. Sajjan
Summary: The active components of expired Fluconazole drug effectively inhibit the corrosion of mild steel in sulphuric acid solution, achieving a maximum inhibition efficiency of 93.75%. The adsorption of Fluconazole molecules on the mild steel surface makes it more hydrophobic and slows down both anodic and cathodic reactions in an acid medium.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Chemistry, Physical
Shveta Sharma, Ashish Kumar
Summary: This study summarizes research on using different compounds as corrosion inhibitors for different metals in various solutions. It reviews that the excellent inhibition efficiency of organic compounds is due to the presence of heteroatoms and pi electron cloud in conjugation.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Lukman O. Olasunkanmi, Nancy Aniki, Abolanle S. Adekunle, Lateefa M. Durosinmi, Solomon S. Durodola, Olaide O. Wahab, Eno E. Ebenso
Summary: Three hydrazinecarboxamides were found to be effective inhibitors of acid corrosion of mild steel, with excellent corrosion inhibition efficiency ranging from 82% to 97%. The inhibitors were shown to have prominent effects on anodic dissolution of steel and adsorb at the steel/electrolyte interface. Theoretical calculations and experimental data revealed possible covalent interactions between the inhibitors and Fe, as well as synergistic interactions with iodide ions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Water Resources
Chiedozie C. Aralu, Helen O. Chukwuemeka-Okorie, Kovo G. Akpomie
Summary: The study found that as temperature increased, the corrosion inhibition rate of Gongronema latifolium as an inhibitor decreased, but the inhibition efficiency increased with concentration. The results indicated that Gongronema latifolium has efficient potential as a low-cost corrosion inhibitor for mild steel in acidic media.
APPLIED WATER SCIENCE
(2021)
Article
Chemistry, Applied
Weiwei Zhang, Boli Nie, Hui-Jing Li, Qinying Li, Chaoyi Li, Yan-Chao Wu
Summary: In this study, a natural polysaccharide mixture inhibitor composed of chondroitin sulfate derived from pig cartilage (CS-PC) and sodium alginate (SA) was developed for the protection of mild steel in hydrochloric acid media. The synergistic effect of the two polysaccharides towards adsorption on mild steel in 1 M HCl was investigated using various methods such as weight loss test, electrochemical investigations, SEM, SECM, and UV methods. The results demonstrated a strong inhibition performance and a synergistic effect of the CS-PC and SA mixture, compared to individual inhibitors, with potential guiding significance for the rational design of efficient corrosion inhibitors.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Physical
Sanmugapriya Ravi, Silda Peters, Elumalai Varathan, Monisha Ravi, J. Arockia Selvi
Summary: This study evaluated the corrosion inhibition effect of Benzophenone (BP) and 2-Aminobenzophenone (2-A.BP) on mild steel in 1 N HCl solution using gravimetric analysis. The results showed that the inhibition efficiency increased with the concentration of inhibitors, with the maximum efficiency at an optimal concentration of 280 ppm. Potentiodynamic polarization measurement indicated that the inhibitors were mixed-type and predominantly anodic inhibitors.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
M. Ouakki, M. Galai, Z. Benzekri, Chandrabhan Verma, E. Ech-chihbi, S. Kaya, S. Boukhris, Eno E. Ebenso, M. Ebn Touhami, M. Cherkaoui
Summary: Three quinoxaline-based heterocycles were evaluated as inhibitors for mild steel corrosion in 1 M HCl. The inhibition effectiveness of these compounds increased with concentration, with adsorption onto the metal surface following Langmuir adsorption isotherm. Interaction mechanism and mode of adsorption were studied using computational simulations.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
K. Vranda Shenoy, Pushyaraga P. Venugopal, P. D. Reena Kumari, Debashree Chakraborty
Summary: The new corrosion inhibitor DMPIP showed good inhibitive performance for mild steel in 0.5 M HCl solution, with inhibition efficiency increasing with concentration but decreasing with temperature. Electrochemical tests revealed mixed inhibition action by DMPIP, which functions through adsorption at the metal surface.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Physical
A. Elaraby, Amr Elgendy, M. Abd-El-Raouf, M. A. Migahed, A. S. El-Tabei, Aboubakr M. Abdullah, Noora H. Al-Qahtani, Sami M. Alharbi, Samy M. Shaban, Dong-Hwan Kim, N. M. El Basiony
Summary: In this study, effective Gemini cationic surfactants (CSII, CSIV) were synthesized and characterized. The adsorptive properties of CSII and CSIV at HCl/air and C-steel/HCl interfaces were investigated using surface tension and electrochemical parameters. The results showed that CSII and CSIV have high adsorption affinity at the HCl/air interface, with aliphatic chains promoting surfactant adsorption. Electrochemical impedance spectroscopy and potentiodynamic polarization revealed that CSII and CSIV act as mixed inhibitors, significantly enhancing the charge transfer resistance of C-steel in HCl. Theoretical calculations and simulations supported the experimental findings, demonstrating the relationship between corrosion inhibition and molecular structure.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Multidisciplinary
Man Yi Ho, Jill Geddes, Trevor L. Hughes, Evgeny Barmatov
Summary: The effects of copper content and precorrosion treatments on the efficiency of a corrosion inhibitor for carbon steel were investigated. It was found that an increase in copper content led to a decrease in the inhibitor efficiency and adsorption rate, due to the formation of a porous cementite film enriched with iron carbide and zero-valent copper, resulting in increased galvanic corrosion.
Article
Engineering, Chemical
N. Subasree, J. Arockia Selvi, Renjith Sasimohanan Pillai
Summary: The corrosion inhibiting effect of three phosphonium containing ionic liquids with different alkyl chain lengths on mild steel in 1 M HCl medium was evaluated. The inhibition performance was studied using multiple methods and a protective layer was confirmed. Theoretical calculations and experimental results showed the inhibition ability of the ionic liquids, with HDTPPB exhibiting the strongest corrosion inhibition.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Bahman Sargolzaei, Ali Arab
Summary: The CTAB and NLS surfactants effectively inhibit the corrosion of mild steel in 3.5% sodium chloride solution, and the inhibition efficiency is significantly improved when the two surfactants are used in combination.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Environmental Sciences
Deepak Sharma, Abhinay Thakur, Manish Kumar Sharma, Renu Sharma, Suresh Kumar, Ashish Sihmar, Hariom Dahiya, Gaurav Jhaa, Ashish Kumar, Ashok Kumar Sharma, Hari Om
Summary: This study evaluated the corrosion-inhibition efficacy of two 1,3,4-oxadiazole derivatives, POX and 4-PMOX, against mild steel corrosion in 1 N HCl. The evaluation was conducted using weight loss, Electrochemical Impedance Spectroscopy (EIS), Potentiodynamic Polarization (PDP), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX), UV-Vis spectroscopy, and theoretical analysis. Both POX and 4-PMOX showed excellent inhibition efficiency, with values reaching 97.83% and 98% at 500 ppm, respectively. The findings of this study provide valuable insights for the design of more efficient organic inhibitors for metal corrosion.
ENVIRONMENTAL RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Shuai Ren, Xi Wang, David Young, Maalek Mohamed -Said, Bernardo Santos, Yi He, Marc Singer
Summary: A thick cementite skeleton exposed on a ferritic-pearlitic C1018 steel surface significantly reduced inhibition efficiency after pre-corrosion, while this effect was insignificant for a lower carbon X65 steel with dispersed cementite microstructure, as only a small amount of cementite remained on its surface after pre-corrosion. Normalizing the increased cathodic area in the presence of residual cementite back to the original area inhibited both anodic and cathodic reactions to the same extent as on bare steel with a sufficient inhibitor concentration. However, the detrimental effect of cementite cannot be completely eliminated due to its galvanic coupling effect.
Article
Chemistry, Multidisciplinary
Nabin Karki, Shova Neupane, Dipak Kumar Gupta, Anju Kumari Das, Sanjay Singh, Gayatri Maiya Koju, Yogesh Chaudhary, Amar Prasad Yadav
Summary: This study reports on berberine isolated from Mahonia nepalensis as a highly efficient and thermally stable corrosion inhibitor for mild steel in acid pickling condition. Berberine showed fast adsorption and achieved high inhibition efficiency in a short time, with even higher efficiency at higher concentrations and temperatures. The results support both physical and chemical interactions of berberine with the steel surface, showing endothermic and spontaneous adsorption process.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Zahir Abbas, Nissar Hussain, Imtiaz Ahmed, Shaikh M. Mobin
Summary: In this study, a Cu-metal organic framework (MOF) was designed, synthesized, and utilized as a precursor source for MOF-derived multilevel hierarchy (Cu/Cu x O@NC). The synthesized material showed high durability, chemical stability, and efficient electrochemical performance, making it suitable for energy storage and conversion systems such as supercapacitors and oxygen evolution reaction (OER). This work provides new insights into the design and preparation of multilevel hierarchies with a single precursor source, enabling multifunctional applications in energy storage.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Rakesh Deka, Richa Rajak, Viresh Kumar, Shaikh M. Mobin
Summary: A cadmium-based metal-organic framework (CdMOF) with a cuboid-shaped morphology was synthesized at ambient temperature. The CdMOF exhibited electroactivity and a specific capacitance of 647 F g-1 at 4 A g-1 with a retention of approximately 78% over 10,000 successive cycles without any binder. By exploring different electrolytes, NaOH showed a higher capacitive response due to its combined effect of ionic and hydrated ionic radii. An asymmetric supercapacitor (ASC) device was fabricated using CdMOF as the positive electrode and activated carbon (AC) as the negative electrode, which successfully powered a LED bulb.
INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Pawan Kumar, Navpreet Kaur, Pranav Tiwari, Anoop Kumar Gupta, Shaikh M. Mobin
Summary: The development of nontoxic, hemocompatible materials for controlled insulin delivery is a challenging task. A novel linker named H4L and a new Cu-MOF (IITI-3) were designed and synthesized. The IITI-3 exhibited high stability in biological fluid and was explored for insulin delivery by coating it with gelatin (gel@insIITI-3). The findings open up a new avenue for oral insulin delivery using the IITI-3 metal-organic framework.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Nissar Hussain, Zahir Abbas, Shagufi Naz Ansari, Gotluru Kedarnath, Shaikh M. Mobin
Summary: A new three-dimensional Cu-MOF material was designed and constructed using a solvent diffusion method at ambient temperature, and a Cu(3)P/Cu@NC heterostructure derived from phosphorization of Cu-MOF was prepared using a low-temperature method. The Cu(3)P/Cu@NC heterostructure electrode exhibited outstanding electrochemical performance, making it suitable for supercapacitor applications.
INORGANIC CHEMISTRY
(2023)
Article
Energy & Fuels
Neha Choudhary, Nissar Hussain, Shaikh M. Mobin
Summary: Bimetallic CoNi nanoflowers with face-centered cubic structure and flower-like morphology were synthesized. LiOH exhibited excellent capacitance and cyclic stability in supercapacitor applications. An asymmetric device with rapid charge/discharge capability and high energy density was fabricated using the nanoflowers.
Article
Nanoscience & Nanotechnology
Navpreet Kaur, Pranav Tiwari, Pawan Kumar, Mainak Biswas, Avinash Sonawane, Shaikh M. Mobin
Summary: The synthesis of smart hybrid material for diagnosis and treatment in nanomedicine is crucial. A simple method to synthesize blue-emissive nitrogen-doped carbon dots N@PEGCDs with enhanced biocompatibility and high fluorescence is presented. These N@PEGCDs are used as a drug carrier for 5-fluorouracil (5-FU) with more release at acidic pH. The mode of action of drug-loaded CD (5FU-N@PEGCDs) has been explored, showing less toxicity to normal cells compared to cancer cells.
ACS APPLIED BIO MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Shagufi Naz Ansari, Mohit Saraf, Zahir Abbas, Shaikh M. Mobin
Summary: MXenes are two-dimensional materials with high conductivity, redox activity, and compositional diversity and have shown great potential in energy storage applications. However, their energy storage capability is limited by a narrow electrochemically stable potential window. Transition metal oxides (TMOs) have high redox activity but suffer from poor cyclability and rate performance. Combining MXenes with TMOs can enhance the charge storage capacity of MXenes while improving the cyclability and rate performance of oxides, making MXene/TMO heterostructures promising for energy storage.
Article
Chemistry, Inorganic & Nuclear
Rakesh Deka, Diptangshu Datta Mal, Shaikh M. Mobin
Summary: The upcycling of waste into valuable chemicals is an important approach to reduce waste and promote the circular economy. The synthesis of a metal-organic framework material using waste materials has been achieved, utilizing rust for the Fe salt and the benzene dicarboxylic acid linker derived from waste plastic bottles. A sustainable energy storage system has been developed using this material as an active electrode for a supercapacitor, demonstrating promising performance comparable to the one made from commercially available chemicals.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Praveen Kumar, Khursheed Ahmad, Shaikh M. Mobin
Summary: Hybrid perovskites based on bismuth have been limited by poor surface morphologies and large band-gap energies, but incorporating monovalent silver cations into iodobismuthates has shown potential in fabricating improved bismuth-based thin-film photovoltaic absorbers. By reducing the band gap and improving surface morphology, we achieved high power conversion efficiency using AgBi2I7 perovskite as a light absorber material. Solvent engineering approach resulted in a band gap of 1.89 eV and a maximum power conversion efficiency of 0.96%, and simulation studies indicated an efficiency of 13.26% using AgBi2I7 as a light absorber perovskite material.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Physical
Rakesh Deka, Shashank Rathi, Shaikh M. Mobin
Summary: Coordination polymers have attracted much interest in energy-related applications due to their adaptable structures and unique photophysical and chemical properties. In this study, a coordination polymer, Co-CP, was synthesized using a mixed ligand strategy and showed excellent supercapacitor properties. The choice of electrolyte cation was found to have a remarkable impact on the electrochemical performance of the device.
Article
Chemistry, Physical
Zahir Abbas, Monunith Anithkumar, Asokan Poorani Sathya Prasanna, Nissar Hussain, Sang-Jae Kim, Shaikh M. Mobin
Summary: Enhancing the output performance of triboelectric nanogenerators (TENGs) can be achieved by designing materials with high triboelectric properties as active fillers. In this study, a Cd-MOF was synthesized as a filler to improve the performance of the TENG device. The Cd-MOF was incorporated with PDMS to construct a MOF/PDMS film and used for TENG study. The MOF-TENG device generated a maximum output power density of 0.124 W m-2 and was used to control mouse movement via finger movements.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Rakesh Deka, Viresh Kumar, Shaikh M. Mobin
Summary: Metal-organic frameworks (MOFs) have great potential as cathodes in supercapacitor applications and as a platform for designing new materials. In this study, a MOF-on-MOF heterostructure, Ni-BTC@ZIF-67, was synthesized and characterized. The material showed impressive specific capacitance and cyclic retention capacity. In addition, an asymmetric supercapacitor was assembled with activated carbon and Ni-BTC@ZIF-67, showing high energy density and cyclic retention rate.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Biomaterials
Pawan Kumar, Ananyaashree Behera, Pranav Tiwari, Sibi Karthik, Mainak Biswas, Avinash Sonawane, Shaikh M. Mobin
Summary: This study synthesized a novel Cu-MOF (IITI-3) and encapsulated it in isoniazid (INH). The results showed significant antimycobacterial activity of INH@IITI-3 and its ability to inhibit biofilm formation in the Mycobacterium tuberculosis (Mtb) bacteria. Additionally, it displayed lower cytotoxicity towards host cells. Therefore, this research opens up new possibilities for the application of INH@IITI-3 in tuberculosis therapeutics.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Materials Science, Multidisciplinary
Nirmiti Mate, Divya Khandelwal, Kallayi Nabeela, Shaikh M. Mobin
Summary: A simple one-pot synthesis of N, S and P-doped carbon dots (CDs) derived from C. thevetia flowers (TF-CDs) is reported, which can be used for the sensitive detection of picric acid. A highly porous, thin, and flexible TF-CD@PVDF film strip is fabricated, enabling the selective and trace-level detection of picric acid. The TF-CDs also show potential for sunlight photodegradation of azo dyes.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
