The mixture of silver nanosquare and silver nanohexagon: green synthesis, characterization and kinetic evolution

Morphological Properties of Nanocrystalline Silicon from p‐Type Bulk Silicon

“…[12][13][14] Figure 3 shows the layer thickness of porous silicon as a function of etching time, from this figure one can recognize the formations layer thickness and after that can see the polishing of that layer the short time between these two states may be because the high concentration of the acid HF/ethanol (2:1), which make strong reaction between the acid and bulk silicon which make the layer thickness of porous silicon and gradually decreases because of the polishing occurs, after that the reaction between the acid and bulk silicon become slow because the depletion in the reaction charge and this cause increased in the new layer thickness bigger than the first, the layer thickness and this result can be shown in many types of research. [15][16][17] Due to the importance of the SEM images in the determination of the morphology, [18][19][20][21][22][23][24][25][26][27] therefore the SEM for the samples can be seen in Figure 4a-c, these figures show the porous silicon as preparation with etching time 2, 6, and 10 min, respectively, from Figure 4a one can see the porous silicon formation which can show the air pores and nanocrystalline silicon that is in the beginning, (Figure 4b) sample under etching time 6 min shows the removing porous silicon layer and the shot down on the reaction charges, which affect on the etching rate and layer thickness and then on the porosity, after removing layer thickness the layer thickness makes a new porous silicon layer but with new reaction, which makes new energy levels between the acid and bulk silicon due to quantum confinement effect, this results can be shown in many papers. [28][29][30]…”

Hydrogen Storage Capacity and Thermodynamic Calculations of Mercury(II) and Palladium(II) Syn‐2‐Pyridine Aldoxime Complexes

“…Currently there is an increasing interest in hydrogen storage as a new source of clean, eco-friend, and high density of energy. [47][48][49][50][51][52][53] The uses of hydrogen as an energy source is very interesting as it does not include side products that may pollutant the atmosphere or increase the global warming, which is the big world's problem these days. It has also a positive effect by impacts on current climate change.…”

“…Hydrogen can be stored as solid (stored in solids), liquid, or gaseous phase, but the best way includes storing into a solid materials as it is easy to dealing with, cheaper, and easier to transport. [57,58] As a part of our interest in studying the hydrogen storage capacity of metal complexes, [47][48][49][50][51][52][53] we reported here in a comparative study of hydrogen storage capacity of mercury(II) and palladium(II) aldoxime complexes.…”

Nano drug (AgNPs capped with hydroxychloroquine): Synthesis, characterization, anti-covid-19 and healing the wound infected with S. aureus

“…Unfortunately, this type of pharmacological fight did not succeed in a way to overcome this virus, so it became necessary to think outside the box, to find a drug that would kill the virus or alter its protein structure. Our thinking here is based on the use of silver nanoparticles, which are less than a hundred nanometers in diameter, and which take different nano shapes as it was proved by our previous works [ [7] , [8] , [9] ]. Because of silver nanoparticles has the benefit of inhibiting the respiratory enzyme [ 10 ], it is commonly used as an effective and safe antibacterial.…”

“…Because of silver nanoparticles has the benefit of inhibiting the respiratory enzyme [ 10 ], it is commonly used as an effective and safe antibacterial. Silver also has the advantage that it can be prepared using environmentally friendly biological methods and thus not to use many chemicals [ 8 , 9 ]. Silver nanoparticles were used as an anti-viral agent against species HIV-1, hepatitis B, and herpes simplex in addition to other types [ [11] , [12] , [13] , [14] , [15] ].…”