Browsing by Author "Ayesh, Ahmad I."
Now showing items 21-34 of 34
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First principle investigation of H2Se, H2Te and PH3 sensing based on graphene oxide
Ehab, Salih; Ayesh, Ahmad I. ( Elsevier , 2020 , Article)Detecting toxic gases is of great importance to protect our health and preserve the quality of life. In this work, graphene (G) and graphene oxide with three different modifications (G–O, G–OH, and G–O–OH) have been used ... -
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 ... -
Investigation of phase transformation for ferrite-austenite structure in stainless steel thin films
Merakeb, Noureddine; Messai, Amel; Ayesh, Ahmad I. ( Elsevier B.V. , 2016 , Article)In this work we report on phase transformation of 304 stainless steel thin films due to heat treatment. Ex-situ annealing was applied for evaporated 304 stainless steel thin films inside an ultra-high vacuum chamber with ... -
Linear hydrogen gas sensors based on bimetallic nanoclusters
Ayesh, Ahmad I. ( Elsevier Ltd , 2016 , Article)This work reports on the fabrication of hydrogen gas sensors based on bimetallic palladium-copper nanoclusters. The nanoclusters were generated by sputtering and inert-gas condensation inside an ultra-high vacuum (UHV) ... -
Metal/Metal-Oxide Nanoclusters for Gas Sensor Applications
Ayesh, Ahmad I. ( Hindawi Publishing Corporation , 2016 , Article Review)The development of gas sensors that are based on metal/metal-oxide nanoclusters has attracted intensive research interest in the last years. Nanoclusters are suitable candidates for gas sensor applications because of their ... -
Nanostructured Metal Oxide-Based Acetone Gas Sensors: A Review.
Amiri, Vahid; Roshan, Hossein; Mirzaei, Ali; Neri, Giovanni; Ayesh, Ahmad I ( MDPI , 2020 , Article Review)Acetone is a well-known volatile organic compound that is widely used in different industrial and domestic areas. However, it can have dangerous effects on human life and health. Thus, the realization of sensitive and ... -
Production of metal-oxide nanoclusters using inert-gas condensation technique
Ayesh, Ahmad I. ( Elsevier B.V. , 2017 , Article)Inert-gas condensation is a novel technique that can be used to produce nanoclusters for different applications. In the present work, dc sputtering combined with inert-gas condensation were used to produce copper oxide ... -
Pt-doped armchair graphene nanoribbon as a promising gas sensor for CO and CO2: DFT study
Ehab, Salih; Ayesh, Ahmad I. ( Elsevier , 2021 , Article)In this work, four armchair graphene nanoribbon (AGNR) based sensor materials were built using Atomistic ToolKit Virtual NanoLab (ATK-VNL) and utilized to detect carbon monoxide (CO) and carbon dioxide (CO2) gases. First, ... -
Selective H2S sensor based on CuO nanoparticles embedded in organic membranes
Ayesh, Ahmad I.; Abu-Hani, Ayah F. S.; Mahmoud, Saleh T.; Haik, Yousef ( Elsevier B.V. , 2016 , Article)We report on H2S gas sensors based on CuO nanoparticles that are embedded within polymer membranes of poly-vinyl-alcohol (PVA) and glycerol ionic liquid (IL). The nanoparticles were fabricated by the colloid microwave ... -
Selective hydrogen gas sensor using CuFe 2 O 4 nanoparticle based thin film
Haija, Mohammad Abu; Ayesh, Ahmad I.; Ahmed, Sadiqa; Katsiotis, Marios S. ( Elsevier B.V. , 2016 , Article)Hydrogen gas sensors based on CuFe2O4 nanoparticle thin films are presented in this work. Each gas sensor was prepared by depositing CuFe2O4 thin film on a glass substrate by dc sputtering inside a high vacuum chamber. ... -
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) ... -
Spinel ferrite nanoparticles for H2S gas sensor
Ayesh, Ahmad I.; Abu Haija, Mohammad; Shaheen, Adel; Banat, Fawzi ( Springer Verlag , 2017 , Article)We investigate H2S gas sensors based on spinel ferrite CuFe2O4 nanoparticles prepared by the co-precipitation method. This technique is an efficient and fast technique to produce nanoparticles. Furthermore, those nanoparticles ... -
Structural evaluation, preliminary in vitro stability and electrochemical behavior of apatite coatings on Ti6Al4V substrates
Yaser E. Greish; Ahmed S. Al Shamsi; Kyriaki Polychronopoulou; Ayesh, Ahmad I. ( Elsevier Ltd , 2016 , Article)Medical-grade alloys, such as Ti-6Al-4V, have been used for fixation of fractured bone and for the total replacement of defective bone. Their bioactivity could be improved by applying a bone-like apatite layer onto their ... -
Tunable Hydroxyapatite/Magnetite Nanohybrids with Preserved Magnetic Properties
Al Jahoushi, Khaula A.; Ayesh, Ahmad I.; El-Maghraby, Hesham F.; Alnoush, Wajdi; Higgins, Drew; Hassan, Fathy M.; Greish, Yaser E.... more authors ... less authors ( Wiley , 2022 , Article)Magnetic nanoparticles (MNPs) have been extensively investigated in a wide range of biomedical applications. Controlled coating of the MNPs is commonly utilized to protect and maintain their magnetic properties and to ...