Designing advanced catalysts for energy conversion based on urea oxidation reaction

B Zhu, Z Liang, R Zou - Small, 2020 - Wiley Online Library
Urea oxidation reaction (UOR) is the underlying reaction that determines the performance of
modern urea‐based energy conversion technologies. These technologies include …

Nickel–cobalt oxides decorated Chitosan electrocatalyst for ethylene glycol oxidation

SS Medany, MA Hefnawy - Surfaces and Interfaces, 2023 - Elsevier
A composite of NiCo 2 O 4 modified electrocatalyst is prepared to enhance the ethylene
glycol electrooxidation. Chitosan matrix is used to improve the activity and adsorption ability …

Ultrafine Rh nanocrystals decorated ultrathin NiO nanosheets for urea electro-oxidation

G Ma, Q Xue, J Zhu, X Zhang, X Wang, H Yao… - Applied Catalysis B …, 2020 - Elsevier
Heterostructured noble metal/transition metal nanohybrids have attracted increasing
attention in energy/environment-related electrocatalysis field due to their high activity. In this …

Synthesis and characterization of lead-based metal–organic framework nano-needles for effective water splitting application

AS Eliwa, MA Hefnawy, SS Medany, RG Deghadi… - Scientific Reports, 2023 - nature.com
Metal organic frameworks (MOFs) are a class of porous materials characterized by robust
linkages between organic ligands and metal ions. Metal–organic frameworks (MOFs) exhibit …

Green synthesis of NiO/Fe3O4@ chitosan composite catalyst based on graphite for urea electro-oxidation

MA Hefnawy, SS Medany, RM El-Sherif… - Materials Chemistry and …, 2022 - Elsevier
In this work, we modified the NiO-based graphite electrode by a green synthesis
nanoparticles composite of magnetite@ chitosan for urea electrooxidation (UEO) in 0.5 M …

Ultrasonic-assisted synthesis of nickel metal-organic framework for efficient urea removal and water splitting applications

AS Eliwa, MA Hefnawy, SS Medany, RG Deghadi… - Synthetic Metals, 2023 - Elsevier
The change in the climate is considered a critical environmental issue that humanity will
deal with through the next decade. Herein, the ultrasonic-assisted method prepared the …

Polyaniline-supported nickel oxide flower for efficient nitrite electrochemical detection in water

NS Al-Kadhi, MA Hefnawy, FS Alamro, RA Pashameah… - Polymers, 2023 - mdpi.com
A modified electrode with conducting polymer (Polyaniline) and NiO nanoflowers was
prepared to detect nitrite ions in drinking water. A simple method was used to prepare the …

Zinc nanocomposite supported chitosan for nitrite sensing and hydrogen evolution applications

NS Al-Kadhi, MA Hefnawy, S S. Nafee, FS Alamro… - Polymers, 2023 - mdpi.com
Nanoparticles of ZnO-Chitosan (Zn-Chit) composite were prepared using precipitation
methods. Several analytical techniques, such as scanning electron microscope (SEM) …

Enhanced electrocatalytic activity towards urea oxidation on Ni nanoparticle decorated graphene oxide nanocomposite

AV Munde, BB Mulik, PP Chavan, BR Sathe - Electrochimica Acta, 2020 - Elsevier
Hydrogen production from natural resourses and industrial waste water is of vital and duel
importance to the energy and environmental issues. Urea oxidation based on cost effictive …

Chitosan Supports Boosting NiCo2O4 for Catalyzed Urea Electrochemical Removal Application

FS Alamro, MA Hefnawy, SS Nafee, NS Al-Kadhi… - Polymers, 2023 - mdpi.com
Currently, wastewater containing high urea levels poses a significant risk to human health.
Else, electrocatalytic methodologies have the potential to transform urea present in urea-rich …