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Full-Text Articles in Engineering
Optimization Of The Catalytic Performance Of Pd/Fe3o4 Nanoparticles Prepared Via Microwave-Assisted Synthesis For Pharmaceutical And Catalysis Applications, Hany A. Elazab Dr
Optimization Of The Catalytic Performance Of Pd/Fe3o4 Nanoparticles Prepared Via Microwave-Assisted Synthesis For Pharmaceutical And Catalysis Applications, Hany A. Elazab Dr
Chemical Engineering
Microwave assisted synthesis technique was used to prepare palladium supported on iron oxide nanoparticles. The advantage of using microwave irradiation as a synthetic tool is due to its unique features as a one step, simple, versatile, and rapid process. The reactants are added simply at room temperature without using high-temperature injection. Hydrazine hydrate was added by the following ratios (0.1, 0.2, 0.3, 0.4, 0.6, 0.8, 1, 1.6, and 3) ml to the different prepared samples at room temperature in order to investigate its effect on the catalytic performance of the prepared catalysts. The prepared catalyst could be used as an …
Laser Vaporization And Controlled Condensation (Lvcc): Graphene Supported Pd/Fe3o4 Nanoparticles As An Efficient Magnetic Catalyst For Suzuki Cross – Coupling., Hany A. Elazab Dr
Laser Vaporization And Controlled Condensation (Lvcc): Graphene Supported Pd/Fe3o4 Nanoparticles As An Efficient Magnetic Catalyst For Suzuki Cross – Coupling., Hany A. Elazab Dr
Chemical Engineering
A reproducible, reliable, and highly efficient synthetic approach was implemented for synthesis of palladium nanoparticles supported on a binary composite of Fe3O4 and graphene (Pd-Fe3O4/G). This unique catalyst was tested for being used as a highly efficient active catalyst for being used in Suzuki cross – coupling reactions. It was found that this graphene supported Pd/Fe3O4 nanoparticles (Pd-Fe3O4/G) has a remarkable catalytic activity towards Suzuki coupling reactions. This catalyst could be recycled for up to three times with high catalytic activity. The catalyst was prepared using LVCC synthetic approach; the prepared catalyst was found to be highly magnetic which enabled …
Micro Reactor Technology: Flow Chemistry Impact On Applied Catalysis, Hany A. Elazab Dr
Micro Reactor Technology: Flow Chemistry Impact On Applied Catalysis, Hany A. Elazab Dr
Chemical Engineering
The micro reaction technology has emerged over the past two decades as one of the promising synthetic tools that can create new horizons in many industrial and catalysis applications. There are many crucial issues that could simply be solved by adopting the approach of micro reaction technology. Those issues are including harmful environmental impact which could be minimized through integrated separation techniques and reagent recycling used in micro reactors. There are also other issues including kinetic, thermodynamic, and process safety concerns. Moreover, chemical manufacturing has been enhanced through running reactions in continuous mode using flow chemistry. This lead to a …
The Flow Reactor Technology As A Modern Synthetic Tool For Preparation Of Pd/Fe3o4 Nanoparticles As A High Efficient Magnetic Catalyst For Co Oxidation, Hany A. Elazab
Chemical Engineering
No abstract provided.
Microwave-Assisted Synthesis Of Palladium Nanoparticles Supported On Copper Oxide In Aqueous Medium As An Efficient Catalyst For Suzuki Cross-Coupling Reaction, Hany A. Elazab, M. A. Sadek, Tamer T. El-Idreesy
Microwave-Assisted Synthesis Of Palladium Nanoparticles Supported On Copper Oxide In Aqueous Medium As An Efficient Catalyst For Suzuki Cross-Coupling Reaction, Hany A. Elazab, M. A. Sadek, Tamer T. El-Idreesy
Chemical Engineering
We report here a reliable green method for the synthesis of palladium nanoparticles supported on copper oxide as a highly active and efficient catalyst for Suzuki cross-coupling reaction. The experimental synthetic approach is based on microwave-assisted chemical reduction of an aqueous mixture of palladium and copper salt simultaneously using hydrazine hydrate as reducing agent. The catalyst was fully characterized using various techniques showing well-dispersed palladium nanoparticles. The catalytic activity and recyclability of the prepared catalyst were experimentally explored in the ligand-free Suzuki cross-coupling reaction with a diverse series of functionalized substrates. The synthesized Pd/CuO catalyst shows many advantages beside its …
The Effect Of Graphene On Catalytic Performance Of Palladium Nanoparticles Decorated With Fe3o4, Co3o4, And Ni (Oh)2: Potential Efficient Catalysts Used For Suzuki Cross—Coupling, Hany A. Elazab Dr
Chemical Engineering
In this research, we report a scientific investigation of an efficient method used for the synthesis of highly active Palladium Nanoparticles decorated with Fe3O4, Co3O4, and Ni (OH)2 Supported on Graphene as Potential Efficient Catalysts for Suzuki Cross—Coupling. Pd/Fe3O4 nanoparticles supported on graphene nanosheets (Pd/ Fe3O4/G) showed an excellent catalytic activity for Suzuki coupling reactions and recycled for up to four times without loss of catalytic activity. An efficient magnetic catalyst has been successfully synthesized using a simple, reproducible fast and reliable method using microwave irradiation conditions. The prepared catalysts are magnetic as in case of iron and cobalt oxides …
Microwave-Assisted Synthesis Of Metal Oxides Nanoparticles : Efficient Heterogeneous Catalysts For Applications In Pollution Control Technologies, Hany A. Elazab Dr
Microwave-Assisted Synthesis Of Metal Oxides Nanoparticles : Efficient Heterogeneous Catalysts For Applications In Pollution Control Technologies, Hany A. Elazab Dr
Chemical Engineering
Metal oxides and Magnetic nanoparticles have been recognized as a class of nanostructured materials of current interest due to its well-known outstanding physical and chemical properties; especially when used in combination with other metal nano-particles. These kinds of nanostructured materials play an important role in many aspects of research ranging from catalysis and biology to material science, advanced technological, medical applications, and green chemistry. The metal oxide nano catalysts are also of great importance in improving the thermal-catalytic decomposition performance. The advanced and unique magnetic, electronic, and catalytic properties of the materials in the nano scale attracted research centers to …
Microwave-Assisted Synthesis Of Pd Nanoparticles Supported On Fe3o4, Co3o4, And Ni(Oh)2 Nanoplates And Catalysis Application For Co Oxidation, Hany A. Elazab
Microwave-Assisted Synthesis Of Pd Nanoparticles Supported On Fe3o4, Co3o4, And Ni(Oh)2 Nanoplates And Catalysis Application For Co Oxidation, Hany A. Elazab
Chemical Engineering
In this paper, we report a simple, versatile, and rapid method for the synthesis of Pd nanoparticle catalysts supported on Fe3O4, Co3 O4, and Ni(OH)2 nanoplates via microwave irradiation. The important advantage of microwave dielectric heating over convective heating is that the reactants can be added at room temperature (or slightly higher temperatures) without the need for high-temperature injection. Furthermore, the method can be used to synthesize metal nanoparticle catalysts supported on metal oxide nanoparticles in one step. We also demonstrate that the catalyst-support interaction plays an important role in the low temperature oxidation of CO. The current results reveal …