Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Zein K. Heiba"'
Autor:
Noura M. Farag, Jasper R. Plaisier, A.M. Aldhafiri, Zein K. Heiba, Mohamed Bakr Mohamed, A.M. El-Naggar
Publikováno v:
Ceramics International. 47:7888-7897
Nano CuCo2-xMxO4 (x = 0, 0.1, 0.2, M = Cr or Fe) samples were synthesized by hydrothermal method. Synchrotron x-ray diffraction data obtained for the samples were subjected to phase analysis and manifested a single-phase cubic spinel structure for Cr
Publikováno v:
Journal of Materials Research and Technology, Vol 11, Iss, Pp 1480-1489 (2021)
Nano (Mg1-xZnx)[Fe2-2x Mn2x]O4 solid solution was synthesized by a simple chemical route. The obtained samples were fully characterized utilizing Rietveld x-ray diffraction analysis, Fourier transform infrared (FTIR), high resolution transmission ele
Publikováno v:
Ceramics International. 47:7475-7486
Novel nano quaternary metals solid solutions from MgFe2O4 and ZnMn2O4 were synthesized using a sol-gel procedure. The development of a solid solution and the formed phase were examined by phase analysis utilizing the X'Pert High Score Plus program an
Autor:
Mohamed Bakr Mohamed, Mahmoud Abdellatief, A.M. Aldhafiri, Noura M. Farag, Zein K. Heiba, A.M. El-Naggar
Publikováno v:
Journal of Materials Research and Technology, Vol 10, Iss, Pp 832-839 (2021)
The changes in the properties of the supercapacitor electrode material copper cobaltite, prepared by a simple hydrothermal procedure, were investigated upon doping with Mo with different ratios (CuCo1-xMoxO4, x = 0.0, 0.1, 0.2). The effect of doping
Autor:
A.M. Aldhafiri, Zein K. Heiba, Noura M. Farag, A.M. El-Naggar, Mohamed Bakr Mohamed, M.A. Deyab
Publikováno v:
Journal of Materials Research and Technology, Vol 10, Iss, Pp 1415-1426 (2021)
The functional properties of (1-x)CuCo2O4/(x)CuS nanocomposite as an improved supercapacitor electrode have been investigated. X-ray diffraction with Rietveld analysis, HRTEM, FESEM, and FTIR techniques were employed for the full structural character
Publikováno v:
Journal of Inorganic and Organometallic Polymers and Materials. 31:2492-2500
This work disseminates the characterization, and facile production of unprecedented amino-functionalized CuNPs synthesized chitosan membrane for application of the purification process of anionic dyes alongside electrochemical properties. Chitosan so
Publikováno v:
Journal of Inorganic and Organometallic Polymers and Materials. 30:1898-1906
Cd1−xMnxFe2O4/PMMA nanocomposites are prepared using hydrothermal and casting procedures. Rietveld analysis is performed for Cd1−xMnxFe2O4 (x = 0, 0.3, 0.5, 0.7) nano ferrite. X-ray diffraction and Fourier transform infrared are used to examine t
Publikováno v:
Applied Physics A. 127
Iron-doped nano ZnMn2O4 (ZnMn2-xFexO4, x = 0, 0.05, 0.15, 0.2) samples were formed using the sol–gel method. Rietveld refinement method revealed small changes in the cell parameters and crystallite size upon doping ZnMn2O4 with Fe. ZnMn2O4 is parti
Publikováno v:
Results in Physics, Vol 24, Iss, Pp 104116-(2021)
Indium doped GaFeO3 (Ga1-xInxFeO3, 0 ≤ x ≤ 0.25) samples were synthesized by the ceramic’s procedure. The correlation between lattice parameter, different ions occupancies between different sites and the octahedral and tetrahedral distortion of
Publikováno v:
Applied Physics A. 127
Nanocomposite (1 − x)CuS/(x)MnS samples (x = 0, 0.25, 0.5, 0.75, 1) were prepared by a simple thermolysis procedure at low temperature (250 °C). HighScor plus program and Rietveld profile method revealed that CuS crystallized in hexagonal phase, w