Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Karim Omri"'
Autor:
Amira Mahmoud, Mosaab Echabaane, Karim Omri, Julien Boudon, Lucien Saviot, Nadine Millot, Rafik Ben Chaabane
Publikováno v:
Molecules, Vol 26, Iss 4, p 929 (2021)
Copper-doped zinc oxide nanoparticles (NPs) CuxZn1−xO (x = 0, 0.01, 0.02, 0.03, and 0.04) were synthesized via a sol-gel process and used as an active electrode material to fabricate a non-enzymatic electrochemical sensor for the detection of gluco
Externí odkaz:
https://doaj.org/article/bbbdc41552a1494fa157b0feff0d516f
Autor:
F. Alharbi, Karim Omri
Publikováno v:
Journal of Materials Science: Materials in Electronics. 32:24229-24239
Fabrication by sol–gel and study of the physical properties of Mn2+ doped Zn2SiO4 (Zn–SO–Mn) materials phosphors (heat-treated at 1500 °C) were reported. The morphology, microstructure and size of the particles were resolved by the XRD and TEM
Autor:
Karim Omri, Soumaya Gouadria
Publikováno v:
Journal of Materials Science: Materials in Electronics. 32:17021-17031
Zinc oxide (ZnO) powders and copper-doped ones (ZO-Cu) have been synthesized by the so-called sol–gel method. They have been then characterized by four different techniques: X-ray diffraction (XRD), transmission electron microscopy (TEM), UV–visi
Autor:
Karim Omri, F. Alharbi
Publikováno v:
Journal of Materials Science: Materials in Electronics. 32:12466-12474
Mn2+-doped β-Zn2SiO4-based glass–ceramics phosphors, labeled Mn–ZSO, were synthesized by the sol–gel method. How much variation in the Mn dopant concentration influences on their structural and optical properties is discussed in detail. In fac
Publikováno v:
Journal of Materials Science: Materials in Electronics. 31:21540-21547
The sol–gel synthesis of silica/carbon nanocomposite was modified with nickel in order to enhance the dispersion of silica nano-powder in the carbon matrix. The synthesized doped nanocomposite RF/SiO2-Ni5% (S-RF) is composed of carbon matrix based
Autor:
L. Chouiref, Abdullah I. Alhassan, Karim Omri, Taher Ghrib, Mohammed A. Gondal, Norah Alonizan, Nawal Madkhali
Publikováno v:
Journal of Inorganic and Organometallic Polymers and Materials. 30:4372-4381
Our main interest in this work is in the synthesis and improvement of the physical properties of TiO2-based nanocomposites modified by coupling to Zn2SiO4:Mn (ZS:M) nanoparticles. The micro-structural characterizations carried out by using X-ray diff
Publikováno v:
Journal of Inorganic and Organometallic Polymers and Materials. 30:3317-3324
In this work, nanocomposites have been developed from the incorporation of silica nanoparticles with a 70% of the started mass material into a carbon matrix based on resorcinol and formaldehyde (RF) by the sol–gel system, then the samples are put i
Publikováno v:
Applied Physics A. 127
This work aimed to study the annealing effects on the TiO2/SiO2 (Ti–O–Si) nanocomposite structural and optical properties and on its performances as a heavy metals detector. For this, we have prepared a 30% silica–70% titania mixture using a so
Publikováno v:
Journal of Inorganic and Organometallic Polymers and Materials. 30:1629-1633
In the present work, we elaborated the CdS–TiO2 (CSTO) composite materials and considered their micro-structural and optical properties were investigated. The micro-structure and optical properties were examined by TEM, XRD, absorption and PL. The
Publikováno v:
Journal of Materials Science: Materials in Electronics. 30:16606-16612
In the present work, a Ca-doped zinc oxide nanoparticle (ZOCa NPs) were synthesized using modified sol–gel process. X-ray diffraction study exhibited a highly crystalline ZOCa NPs with hexagonal Wurtzite structure. ZOCa samples were deposited by pu