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Electron modes simulation of a Siemens-Primus-Linac at 10, 12, and 14 MeV with various field sizes

Research Authors
Hani H. Negm, Walaa M. Fathy, Moamen M. Aly
Research Date
Research Department
Research Journal
Journal of Radiation Research and Applied Sciences
Research Member
Research Pages
100584
Research Publisher
Elsevier
Research Vol
16(3)
Research Website
https://doi.org/10.1016/j.jrras.2023.100584
Research Year
2023

Fabrication and characterization of structured Zn1-xCdxWO4 (0≤x≤1) with tunable photoluminescent and promising applicable heterometallic nanocomposites in shielding properties

Research Authors
Hani Negm, Hend Abd-Allah, Atta Y. Abdel-Latief, M.A. Abdel-Rahim, Atef El-Taher, Nagih M. Shaalan
Research Date
Research Department
Research Journal
Radiation Physics and Chemistry
Research Member
Research Pages
111335
Research Publisher
Elsevier
Research Vol
215
Research Website
https://doi.org/10.1016/j.radphyschem.2023.111335
Research Year
2024

A new nanocomposite of copper oxide and magnetite intercalated into Attapulgite clay to enhance the radiation shielding

Research Authors
Hani H. Negm, Elhassan A. Allam, Eslam Abdeltwab, Massaud Mostafa, Mohamed E. Mahmoud, Atef El-Taher
Research Date
Research Department
Research Journal
Radiation Physics and Chemistry
Research Member
Research Pages
111398
Research Publisher
Elsevier
Research Vol
216
Research Website
https://doi.org/10.1016/j.radphyschem.2023.111398
Research Year
2024

A Comprehensive Investigation of the Impact of NiO on the Radiation Attenuation Characteristics of (CaO-Li2O-NiO-SiO2) Glass Structure

Research Authors
Hani H. Negm, Asmaa A. Sdeek, Ahmed A. Ebrahim
Research Date
Research Department
Research Journal
Journal of Electronic Materials
Research Member
Research Pages
945–958
Research Publisher
Springer
Research Vol
53(2)
Research Website
https://doi.org/10.1007/s11664-023-10833-9
Research Year
2024

Evaluation of shielding properties of a developed nanocomposite from intercalated attapulgite clay by Cd/Pb oxides nanoparticles

Research Authors
Hani Hussein Negm, Rehab El-Sharkawy, Eslam Abdel Twab, Massaud Mostafa, Mohamed Mahmoud and Atef El-Taher
Research Date
Research Department
Research Journal
Physica Scripta
Research Member
Research Pages
055956
Research Publisher
IOP Publishing
Research Vol
99(5)
Research Website
DOI: 10.1088/1402-4896/ad3b48
Research Year
2024

The Role of Ytterbium (Yb2O3) in the Radiation Shielding Properties of Barium Titanium Borate Glasses (B2O3-TiO2-BaO) in Terms of γ and β Radiations

Research Authors
Hani H. Negm, Asmaa A. Sdeek, Ahmed A. Ebrahim
Research Date
Research Department
Research Journal
Journal of Electronic Materials
Research Member
Research Publisher
Springer
Research Website
https://doi.org/10.1007/s11664-024-11073-1
Research Year
2024

Designing strategically functionalized conjugated microporous polymers with pyrene and perylenetetracarboxylic dianhydride moieties with single-walled carbon nanotubes to enhance supercapacitive energy storage efficiency

Research Abstract

We utilize straightforward and traditional Sonogashira coupling reactions to synthesize two conjugated microporous polymers linked with pyrene (referred to as PyT-PTCDA and PyT-PHTD CMPs) by combining the common precursor of 1,3,6,8-tetraethynylpyrene (PyT) with 1,7-dibromo-3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA-Br2) and 3,6-dibromophenanthrene-9,10-dione (PHTD-Br2). Various analytical techniques, including spectroscopy and microscopy, are employed to characterize these two PyT-CMP materials. The PyT-PTCDA CMP exhibits notable thermal stability (with a decomposition temperature of 351 ◦C and a char yield of 61 wt %). We combine the PyT-PTCDA and PyT-PHTD CMPs with exceptionally conducting single-walled carbon nanotubes (SWCNTs) through π-π stacking interactions between SWCNTs and PyT unit to improve their electrical conductivity and electrochemical performance. Electrochemical evaluations reveal that the PyT-PTCDA CMP/SWCNTs nanocomposite shows an impressive capacitance of 376 F g- 1 (at 0.5 A g- 1) in a three-electrode system. After undergoing 5000 cycles of charging and discharging, it maintained 98 % of its original capacitance while demonstrating an energy density of 52 Wh/kg. Additionally, in a symmetric coin cell system, the energy density is 17 Wh/kg and the capacitance is 119 F g- 1 for PyT-PTCDA CMP/SWCNTs. This approach presents a promising avenue for developing high-performance supercapacitors by strategically blending PyT-CMPs with highly conductive SWCNTs.

Research Authors
Aya Osama Mousa, Santosh U. Sharma, Swetha V. Chaganti, Tharwat Hassan Mansoure, Poonam Nagendra Singh, Moshin Ejaz, Cheng-Hsin Chuang, Jyh-Tsung Lee, Shiao-Wei Kuo, Mohamed Gamal Mohamed
Research Date
Research Department
Research Journal
Journal of Power Sources
Research Pages
234624-234635
Research Publisher
Elsevier
Research Vol
608
Research Website
https://www.sciencedirect.com/science/article/pii/S0378775324005767
Research Year
2024

[HTML] from nature.com Covalently anchoring silver nanoclusters Ag44 on modified UiO-66-NH2 with Bi2S3 nanorods and MoS2 nanoparticles for exceptional solar wastewater

Research Abstract
Research Authors
Mostafa Farrag
Research Date
Research Department
Research Journal
Scientific Reports
Research Year
2023
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