Mohamed S. Hamdy

ORCID: 0000-0002-7234-4924
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About
Contact & Profiles
Research Areas
  • Advanced Photocatalysis Techniques
  • Catalytic Processes in Materials Science
  • Ammonia Synthesis and Nitrogen Reduction
  • Mesoporous Materials and Catalysis
  • Caching and Content Delivery
  • Electrocatalysts for Energy Conversion
  • TiO2 Photocatalysis and Solar Cells
  • Catalysis and Oxidation Reactions
  • Copper-based nanomaterials and applications
  • Advanced battery technologies research
  • Gas Sensing Nanomaterials and Sensors
  • Nanomaterials for catalytic reactions
  • ZnO doping and properties
  • Advanced Nanomaterials in Catalysis
  • Quantum Dots Synthesis And Properties
  • Magnetic Properties and Synthesis of Ferrites
  • Multiferroics and related materials
  • Polyoxometalates: Synthesis and Applications
  • Enhanced Oil Recovery Techniques
  • Chalcogenide Semiconductor Thin Films
  • Catalysis and Hydrodesulfurization Studies
  • Fuel Cells and Related Materials
  • Combustion and flame dynamics
  • Catalysis for Biomass Conversion
  • Iron oxide chemistry and applications

King Khalid University
2016-2025

National Water Research Center
2025

Primary Source
2024

Cairo University
2023-2024

King Fahd University of Petroleum and Minerals
2018-2024

Tanta University
2024

Chengdu University
2023

University of Electronic Science and Technology of China
2023

Weifang University
2023

Shandong Normal University
2023

Proton exchange membrane water electrolyzer (PEMWE) represents a promising technology for the sustainable production of hydrogen, which is capable efficiently coupling to intermittent electricity from renewable energy sources (e.g., solar and wind). The with compact stack structure has many notable advantages, including large current density, high hydrogen purity, great conversion efficiency. However, use expensive electrocatalysts construction materials leads costs limited application. In...

10.26599/nre.2022.9120032 article EN cc-by Deleted Journal 2022-09-08

Electrocatalytic NO reduction reaction to generate NH<sub>3</sub> under ambient conditions offers an attractive alternative the energy-extensive Haber–Bosch route; however, challenge still lies in development of cost-effective and high-performance electrocatalysts. Herein, nanoporous VN film is first designed as a highly selective stable electrocatalyst for catalyzing with maximal Faradaic efficiency 85% peak yield rate 1.05 × 10<sup>–7</sup> mol·cm<sup>–2</sup>·s<sup>–1</sup> (corresponding...

10.26599/nre.2022.9120022 article EN cc-by Deleted Journal 2022-07-04

Ammonia (NH3) is an essential raw material in the production of fertilizers and a promising carbon-free energy carrier, however, its synthesis still depends on energy- capital-intensive Haber–Bosch process. Recently, electrochemical N2 reduction reaction has attracted significant interest as emerging method for NH3 under ambient conditions. However, limited solubility aqueous electrolyte strong NN bonds result low yield rate, inferior faradaic efficiency unsatisfactory selectivity, impeding...

10.1039/d3qi00554b article EN Inorganic Chemistry Frontiers 2023-01-01

TiO 2 decorated juncus effusus-derived carbon microtubes (TiO /JE-CMTs) are highly active and stably for electrochemical N reduction to NH 3 , capable of attaining a large yield 20.03 μg h −1 mg cat. with high faradaic efficiency 10.76%.

10.1039/d2qi00140c article EN Inorganic Chemistry Frontiers 2022-01-01

Plasma-etched OV-Ti 2 O 3 behaves as an active and stable catalyst for electrochemical N reduction to yield NH , capable of attaining a large 37.24 μg h −1 mg cat. high faradaic efficiency 19.29%.

10.1039/d2qi01173e article EN Inorganic Chemistry Frontiers 2022-01-01

Oxygen vacancy-enriched Co 3 O 4 nanosheet arrays enable ambient electrosynthesis of NH via nitrate reduction, achieving a faradaic efficiency 96.9% and yield 12 157 μg h −1 cm −2 in 0.1 M NaOH with NO − .

10.1039/d2se00830k article EN Sustainable Energy & Fuels 2022-01-01

Electrochemical reduction of nitrite (NO2-) can satisfy the necessity for NO2- contaminant removal and deliver a sustainable pathway ammonia (NH3) generation. Its practical application yet requires highly efficient electrocatalysts to boost NH3 yield Faradaic efficiency (FE). In this study, CoP nanoparticle-decorated TiO2 nanoribbon array on Ti plate (CoP@TiO2/TP) is verified as high-efficiency electrocatalyst selective NH3. When measured in 0.1 M NaOH with NO2-, freestanding CoP@TiO2/TP...

10.1016/j.isci.2023.107100 article EN cc-by iScience 2023-06-16

A CoP nanoneedle array supported on Ti mesh acts as a high-active electrocatalyst with low onset potential toward NO-to-NH 3 conversion, achieving faradaic efficiency of 88.3% and yield 47.22 μmol h −1 cm −2 .

10.1039/d2qi00002d article EN Inorganic Chemistry Frontiers 2022-01-01

Industrial ammonia production mainly relies on the conventional Haber–Bosch process accompanied by high energy consumption and plentiful carbon dioxide emissions, which triggered recent interest to explore more energy‐efficient environmentally benign alternatives. Very recently, electrochemical nitrite reduction in an aqueous medium promises new opportunities for advanced, energy‐efficient, sustainable at ambient conditions. The formation rate Faradic efficiency are strongly associated with...

10.1002/sstr.202300168 article EN cc-by Small Structures 2023-07-23

Ammonia (NH3 ) is an indispensable feedstock for fertilizer production and one of the most ideal green hydrogen rich fuel. Electrochemical nitrate (NO3- reduction reaction RR) being explored as a promising strategy to synthesize industrial-scale NH3 , which has nonetheless involved complex multi-reaction process. This work presents Pd-doped Co3 O4 nanoarray on titanium mesh (Pd-Co3 /TM) electrode highly efficient selective electrocatalytic NO3- RR at low onset potential. The well-designed...

10.1002/smll.202303424 article EN Small 2023-06-17

The feasibility of four mesoporous materials composed biocompatible Si (TCPSi) or SiO2 (MCM-41, SBA-15, and TUD-1) were evaluated for oral drug delivery applications. main focus was to study the effect different pore systems (unidirectional/2D/3D) their diameters, size distributions, volumes on maximal load capacity, release profiles a loaded active pharmaceutical ingredient. Ibuprofen used as model drug. total volume solid factor limiting maximum with SBA-15 reaching very high 1:1 in weight...

10.1080/10717540601098823 article EN Drug Delivery 2007-01-01
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