Asiful H. Seikh

King Saud University

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Hany S. Abdo

King Saud University

El‐Sayed M. Sherif

King Saud University

R. Venkatesh

Saveetha University

Jabair A. Mohammed

King Saud University

V. Mohanavel

Bharath University

Ibrahim A. Alnaser

King Saud University

Muneer Baig

Prince Sultan University

Ismail Hossain

Ural Federal University

Manzoore Elahi M. Soudagar

Graphic Era University

Ilyas Khan

Majmaah University

Cooperative Institutions

King Saud University

Saveetha University

Jadavpur University

Anna University, Chennai

Indian Institute of Technology Kharagpur

SRM Institute of Science and Technology

National Institute of Technology Karnataka

GLA University

Chandigarh University

Sathyabama Institute of Science and Technology

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Manufacturing and Characterization of Corrosion Resistant Epoxy/2Pack Coatings Incorporated with Polyaniline Conductive Polymer

International Journal of Electrochemical Science (2015)

Ubair Abdus Samad Mohammad Asif Alam El‐Sayed M. Sherif Othman Y. Alothman Asiful H. Seikh

Different epoxy coatings incorporated with different additions of up to 0.78 wt. % polyaniline (PANI) were manufactured. The dispersion of PANI with epoxy was done using both mechanical and sonication processes. The surface of the fabricated coatings was characterized using field emission scanning electron microscopy (FE-SEM). The chemical composition was also confirmed by using Fourier transform infrared (FTIR-ATR). The hardness, scratch resistance, impact strength, load vs. depth using nanoindentation, and thermal degradation for all of the manufactured coatings were evaluated. The corrosion resistance of the PANI modified coatings after different immersion periods of time, namely, 1 h, 7 days, and 21 days in 3.5 wt. % NaCl solutions were reported using electrochemical impedance spectroscopy (EIS) measurements. Measurements proved that these coatings have excellent mechanical properties and provide good corrosion protection, which is superior as compared to conventional epoxy coatings. Results also indicated that PANI can be considered as suitable alternative to replace hazardous inorganic anticorrosive pigments currently used in coating formulations.

10.1016/s1452-3981(23)17280-4

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Citations (9)

Electrochemical Corrosion Behavior of C-250 Maraging Steel Grade in Sulfuric Acid Pickling Solution

International Journal of Electrochemical Science (2015)

Asiful H. Seikh El‐Sayed M. Sherif Hossam Halfa

The effect of changing the time of immersion and temperature on the electrochemical corrosion behavior of C-250 maraging steel grade in 1.0 M H2SO4 pickling solution was reported. The study was carried out using potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) investigations. It was found that the increase of immersion time from 10 min to 1 h, 2 h, and 24 h increases the corrosion of the C-250 maraging steel in the acid solution through increasing the corrosion current and corrosion rate, while decreasing the corrosion resistance as was indicated by the polarization measurements. This effect was found to further increase with increasing the temperature of the sulfuric acid solution from 20° to 50 °C due to the increase of surface reactivity with temperature. The results obtained by EIS measurements confirmed those ones obtained by potentiodynamic polarization that C-250 maraging steel suffers sever uniform corrosion increases with elongating the immersion time and raising the solution temperature.

Pickling

Maraging steel

10.1016/s1452-3981(23)05041-1

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Thermal Storage for the Analysis of Hybrid Energy Systems Based on Geothermal and Solar Power

International Journal of Photoenergy (2022)

K. U. Aravind Muthu Mekala Natarajan N. P. Muthuraju Nidhi Soni Essam A. Al‐Ammar

Thermal degradation of geothermal energy occurs even during the duration of geothermal energy facilities. The enormity and efficiency of thermal energy available for electric transformation, as well as plant performance and power production, are both affected by the decrease in geofluid heat. Additionally, due to the generally increased turbine exhaust temperatures, the efficiency of geothermal energy based upon air-cooled organic Rankine cycle devices (ORCs) degrades considerably at hot room temperatures. A newly designed Geothermal-Concentrator Solar Power (GEO-CSP) station is simulated in this work, which allows for greater geothermal power use and enhances the effectiveness of the geothermal ORC system over the power plant’s lifespan. The geothermal fluid entering the ORC’s heating element is heated using the sun’s radiation. The CSP facility is fitted with a thermal energy storing unit that stores excess energy from the sun accessible throughout the day and releases it at nighttime whenever the energy system’s performance is better. When the storage facility is included in the concentrator CSP technology, the incremental yearly energy generation from solar increases by 19 percent, from 5.3 percent to 6.3 percent, similar to the geothermal-only plant. As a result, adding a TES unit to the hybrid unit could be quite beneficial.

Organic Rankine Cycle

Geothermal heating

Geothermal power

Thermal energy

10.1155/2022/1296822

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Citations (2)

Electrochemical behavior of maraging steel containing high molybdenum percentage in neutral, acidic and alkaline media

AIP conference proceedings (2023)

Asiful H. Seikh Hossam Halfa Mahmoud S. Soliman

Maraging steel

10.1063/5.0143455

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Fabrication and Characteristics Study of Aluminium Alloy Hybrid Nanocomposite Synthesized with SiC and Waste Metal Powder

Silicon (2023)

Periasamy Kaliyannan Asiful H. Seikh M.A. Kalam R. Venkatesh

6063 aluminium alloy

10.1007/s12633-023-02727-6

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Citations (2)

Flexible Polymer Solar Cells with High Efficiency and Good Mechanical Stability

International Journal of Photoenergy (2022)

I. Kathir Santaji Krishna Shinde C. Parswajinan Sudheer Hanumanthakari Kalaivanan Loganathan

Single-junction polymer solar cells have demonstrated exceptional power conversion efficiency. Interlayer adhesion will be critical in building flexible polymer solar cells since inorganic conveyance layers would surely break. Aluminium-doped zinc oxide modified by polydopamine has emerged as a viable electron transportation layer in polymer solar cells, enhancing mechanical qualities by offering a high degree of flexibility and adhesion to the active layer. Power conversion efficiency of 12.7% is achieved in nonfullerene polymer solar cells built on PBDB-T2F:IT-4F with aluminium-doped zinc oxide 1.5% polydopamine electron transporting layer. Furthermore, the device based on Ag-mesh wire-wound electrodes has a power conversion efficiency of 11.5% and retains more than 90% of original power conversion efficiency afterward 1500 cycles of bending. For implantable and adaptable polymer solar cells for wide areas, roll-to-roll fabrication of inorganic electron transport layers is advantageous because of their mechanical resilience and thickness insensitivity.

10.1155/2022/4931922

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Synthesis and characterization of highly organized crystalline rutile nanoparticles by low-temperature dissolution-reprecipitation process

Journal of materials research/Pratt's guide to venture capital sources (2015)

Mohammad Rezaul Karim Mohammad Tauhidul Islam Bhuiyan Mushtaq Ahmad Dar Asiful H. Seikh Muhammad Ali Shar

Rutile

Characterization

10.1557/jmr.2015.150

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Citations (4)

CCDC 2237135: Experimental Crystal Structure Determination

The Cambridge Structural Database (2023)

Juli Nanda Goswami Najirul Haque Asiful H. Seikh Biswajit Bhattacharya Franziska Emmerling

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc2f2xn3

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Magnetohydrodynamic (MHD) Flow of Micropolar Fluid with Effects of Viscous Dissipation and Joule Heating Over an Exponential Shrinking Sheet: Triple Solutions and Stability Analysis

Symmetry (2020)

Liaquat Ali Lund Zurni Omar Ilyas Khan Jawad Raza El‐Sayed M. Sherif

A numerical study was carried out to examine the magnetohydrodynamic (MHD) flow of micropolar fluid on a shrinking surface in the presence of both Joule heating and viscous dissipation effects. The governing system of non-linear ordinary differential equations (ODEs) was obtained from the system of partial differential equations (PDEs) by employing exponential transformations. The resultant equations were transformed into initial value problems (IVPs) by shooting technique and then solved by the Runge–Kutta (RK) method. The effects of different parameters on velocity, angular velocity, temperature profiles, skin friction coefficient, and Nusselt number were obtained and demonstrated graphically. We observed that multiple solutions occurred in certain assortments of the parameters for suction on a surface. The stability analysis of solutions was performed, and we noted that the first solution was stable while the remaining two solutions were not. The results also showed that the velocity of the fluid increased as the non-Newtonian parameter rose in all solutions. Furthermore, it was detected that the temperature of fluid rose at higher values of the Eckert number in all solutions.

Eckert number

10.3390/sym12010142

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Citations (67)

High concentration NaOH processing of natural fiber explored polypropylene composite featured with mullite: characteristics investigation

Journal of Polymer Research (2024)

M. Aruna Ismail Hossain S. Kaliappan S. Prabagaran R. Venkatesh

Mullite

Polypropylene

Natural fiber

10.1007/s10965-024-03953-1

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Citations (2)