A.E. Rashed

Alexandria University | AU · Department of Environmental Sciences

Diabetes mellitus worldwide patients are expected to total 366 million by 2030. Continuous monitoring of blood glucose levels is essential for diabetic treatment. Inkjet printing is one of the promising inexpensive techniques for fabricating printed electronics with high accuracy, minimum waste, and a variety of substrates to print on. Here we d...

The widespread adoption of wearable, movable, and implantable smart devices has sparked the evolution of flexible, miniaturized power supplies. High-resolution inkjet printing of flexible microsupercapacitor (μSC) electrodes is a fast, inexpensive, and waste-free alternative manufacturing technology. In this work, a 2D birnessite-type manganese dio...

Carbon dioxide is both the planet’s enemy and friend since it maintains the balance of the planet as this gas retains some of the radiant energy that the planet receives. Thus, it keeps the Earth’s heat, without which the Earth would be unbearably cold. However, the increase in the quantity of CO2 in the Earth’s atmosphere contributes to the exacer...

The global trend toward sustainability is due to the growing demand for synthetic chemicals and fuels relying on fossil crude oil with the associated concerns of climate change. The Fischer-Tropsch synthesis (FTS) process is a key sustainable pathway for supplying light olefins, gasoline, and other petrochemicals using green hydrogen and energy. He...

A temperature calibration procedure for a fixed-bed reactor has been reported to investigate its outcome on the performance of Fischer-Tropsch Synthesis (FTS) utilizing metal-organic framework (MOF)-derived iron catalyst. It has been established that catalyst activation and activity are sensitive to reaction temperature. Elevated temperatures lead...

The design of a highly active Fe-supported catalyst with the optimum particle and pore size, dispersion, loading, and stability is essential for obtaining the desired product selectivity. This study employed a solvothermal method to prepare two Fe-MIL-88B metal-organic framework (MOF)-derived catalysts using triethylamine (TEA) or NaOH as deprotona...

Fe-MIL-88B was prepared by a method that utilizes ferric nitrate and terephthalic acid (TPA or H 2 BDC) as precursors. The catalyst was characterized by TEM, SEM, FTIR, XRD, BET, and TGA. The pyrolyzed MOF (Fe-MIL-88B/C) was then tested for FTS at 300 psi, 300/340°C and H 2 /CO=1 after reduction under flow of hydrogen at 400°C for 4 hours. GC produ...

MnO2/GNPs-PVDF/graphite capacitive electrode is prepared by two steps synthesis approach, where low cost graphene nanoplates (GNPs) which show the benefits of single-layer graphene and highly graphitic carbon, are initially mixed with 8 wt% polyvinylidene fluoride (PVDF) binder polymeric solution via a slurry procedure. Slurry of GNPs-PVDF composit...

MnO2/graphene composite electrode for capacitive deionization