تصفح حسب المؤلف "Ayesh, Ahmad I."
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Assessment of SnO2 nanoparticles' impact on the growth of Picochlorum maculatum algae
Bounnit, Touria; Ayesh, Ahmad I.; Saadaoui, Imen; Mohideen, Rihab S.; Sayadi, Sami ( Royal Society of Chemistry , 2022 , Article)To determine the effect of SnO2 nanoparticles on Picochlorum maculatum - isolated from a Qatar marine environment, algal growth media are amended with different nanoparticle concentrations (1, 5, 25, 50, and 100 mg L−1) ... -
Co-doped zigzag graphene nanoribbon based gas sensor for sensitive detection of H2S: DFT study
Salih, Ehab; Ayesh, Ahmad I. ( Academic Press , 2021 , Article)In this work, we present a highly sensitive gas sensor for the detection of poisonous hydrogen sulfide gas (H2S) based on copper and zinc co-doped zigzag graphene nanoribbon (Cu/Zn-ZGNR). The electronic properties as well ... -
Computational study of metal doped graphene nanoribbon as a potential platform for detection of H2S
Salih, Ehab; Ayesh, Ahmad I. ( Elsevier Ltd , 2021 , Article)Theoretical investigation for detection of hydrogen sulfide (H2S) gas using hydrogen/nitrogen-terminated armchair graphene nanoribbon (HAGNR and NAGNR) doped with Pt is presented in this study. The investigation was ... -
Engineering the band gap of BN and BC2N nanotubes based on T-graphene sheets using a transverse electric field: Density functional theory study
Roya, Majidi; Ayesh, Ahmad I. ( Elsevier , 2022 , Article)A new class of nanotubes formed by rolling boron nitride (BN) and boron carbonitride (BC2N) sheets in the form of T-graphene is suggested in this work. The structural and electronic properties of these nanotubes, named ... -
First principle study of transition metals codoped MoS2 as a gas sensor for the detection of NO and NO2 gases
Salih, Ehab; Ayesh, Ahmad I. ( Elsevier B.V. , 2021 , Article)Exposure to nitrogen oxides (NOx) has been reported to seriously affect the respiratory systems. More precisely, breathing NOx may lead to the appearance of asthma symptoms, and may also result in the infection with asthma ... -
Sensitive SO2 gas sensor utilizing Pt-doped graphene nanoribbon: First principles investigation
Salih, Ehab; Ayesh, Ahmad I. ( Elsevier Ltd , 2021 , Article)The objective of this work is to seek a highly sensitive gas sensor for the detection of sulfur dioxide (SO2) by investigating the impacts of passivation as well as metal doping of armchair-edge graphene nanoribbon (AGNR) ...