24 Result(s)
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Omar H. Abd-Elkader
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Article
Synthesis and performance evaluation of supercapacitor based on banana peel–derived biochar loaded manganese dioxide with polyaniline ternary composite
The properties of banana peel (BP)–derived biochar were altered by introducing MnO2 using precipitation method. The resulting MnO2–BP composite was modified by in situ polymerization of aniline monomer in the com...
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Article
Chemical Synthesis of Quaternary Hybrid Conducting Polymers@Cr2O3-Graphene Oxide Electrodes with Excellent Performance in Supercapacitors
In this work, PAni–PPy@Cr2O3–GO and PPy@Cr2O3–GO materials were successfully prepared by a facile and lowcost chemical oxidation method. This process provides an efficient and simple technique to synthesis ternar...
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Article
Open AccessExploring the structural, electronic, and hydrogen storage properties of hexagonal boron nitride and carbon nanotubes: insights from single-walled to doped double-walled configurations
This study investigates the structural intricacies and properties of single-walled nanotubes (SWNT) and double-walled nanotubes (DWNT) composed of hexagonal boron nitride (BN) and carbon (C). Do** with vario...
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Article
On resistive switching and dielectric spectroscopy characteristics of topological insulator-based heterojunction for memory applications
Herein, bismuth telluride (Bi2Te3) thin films thermally grown under vacuum have been integrated with p-Si in a heterojunction configuration of Au/Bi2Te3/p-Si/Al for resistive switching random-access memory (RRAM)...
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Article
Open AccessPromising sensors for pharmaceutical pollutant adsorption using Clar’s goblet-based 2D membranes
This study focuses on the design of new 2D membranes from connected Clar’s Goblet as a potential sensor for pharmaceutical pollutants, specifically the painkiller drugs aspirin, paracetamol, ibuprofen, and dic...
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Article
Investigating into physical properties of PVC doped with non-stoichiometric nano-ZnS1−xMnx for optical devices development
Undoped and doped polyvinyl chloride (PVC) with non-stoichiometric nano ZnS1−xMnx nanoparticles were fabricated. Using the X-ray diffraction method, the various phases formed in ZnS1−xMnx as the amount of Mn incr...
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Article
Temporal and Spatial Variations of Potentially Toxic Elements in PM10 Collected in Jeddah City, Saudi Arabia
Air pollution causes environmental and health problems around the world. In this study, ambient particulate matter with an aerodynamic diameter equal to or less than 10 microns (PM10) has been collected at three ...
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Article
Effect of PANI addition on structural, optical and electrical characteristics of PVC/Sn0.9Fe0.1S2 polymer
Poly (vinyl chloride) (PVC)/Sn0.9Fe0.1S2/x wt% Polyaniline (PANI) polymers were produced using the solid state reaction method under flows of nitrogen and casting methods. The structure and microstructure charact...
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Article
Correction: Two-Dimensional ZnS Quantum Dots for Gas Sensors: Electronic and Adsorption Properties
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Article
Two-Dimensional ZnS Quantum Dots for Gas Sensors: Electronic and Adsorption Properties
A sustainable and healthy environment for human settlement depends on clean air. There is high demand for effective treatment techniques for hazardous gases produced by industry since they are important contri...
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Article
Structure and optical properties of Sb-doped CH3NH3PbI3: effect on perovskite solar cell performance
In this paper, we have shown that Sb has been doped into the light-absorbing methylammonium lead iodide (CH3NH3PbI3) perovskite. We had anticipated that the introduction of antimony (Sb3+) as a dopant in perovski...
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Article
Exploring the structural, dielectric, and optical characterizations of PVA/CMC blend upon loading with nano-Zn0.9Fe0.1S
Zn0.9Fe0.1S as nanofillers, prepared by solid-state reactions at different temperatures, have been loaded into polyvinyl alcohol (PVA)/carboxymethyl cellulose (CMC) polymer blend using a casting procedure. The st...
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Article
Structural, optical, and dielectric performance of PVA/PVP/PEG blend loaded with nano CoFe2−xErxO4 ferrite
Single spinel ferrite phase CoFe2−xErxO4 (0.0 ≤ x ≤ 0.4) with a cubic structure were prepared and used as nanofiller. The impact of Er do** on the cation distribution, lattice parameter, crystallite size and mi...
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Article
Linear and nonlinear optical characteristics of PVA/CMC/PEG blended polymer loaded with ZnS formed at different temperatures
Pure and loaded polyvinyl alcohol/carboxymethyl cellulose/polyethylene glycol (PVA/CMC/PEG: 70/15/15%) blends with zinc sulfide (ZnS) were prepared at different temperatures (200, 300, 400, and 500 °C) using s...
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Article
Structural, thermal, and linear/nonlinear optical performance of PVA/CMC polymer blend doped with ZnS/V prepared at different temperatures
PVA/CMC blend loaded with Zn0.9V0.1S prepared at different temperatures (T = 200, 300, 400 or 500 °C) were synthesized utilizing solid state reaction and casting methods. Applying Rietveld method, the cell parame...
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Article
Study the effect of loading non-stoichiometric zinc sulfide on optical characteristics of PVA/CMC/PVP blended polymer films
In the current study, both solid-state reactions, at low temperature, and casting methods were employed to fabricate polymeric blends films based on polyvinyl alcohol/Carboxymethyl Cellulose/Polyvinylpyrrolido...
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Article
Influence of tungsten substitution on structure, optical, vibrational and magnetic properties of hydrothermally prepared NiFe2O4
A series of single-phase NiFe2O4 powder with different W-do** (0.0 ≤ x ≤ 0.2) has been synthesized using hydrothermal processing route. The change in lattice parameter and magnetic properties with W-do** was ...
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Article
Correction to: Elemental map** of some collected gold samples from Al-Amar gold mine in Saudi Arabia
In the original publication one of the author name was published wrongly unfortunately.
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Article
Elemental map** of some collected gold samples from Al-Amar gold mine in Saudi Arabia
The mining waste in Al-Amar gold mine is 150 kg a year due to leakage in the extraction process. Studying the textures of gold deposits can be helpful to improve the process of gold extraction. The present wor...
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Article
Elemental Composition of PM2.5 Aerosol in a Residential–Industrial Area of a Mediterranean Megacity
Very little is known about the elemental composition and possible sources of fine aerosol particles from Mediterranean megacities. Fine aerosol particles were collected at a residential-industrial area in Grea...
