Mostafa Shaker

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Questions related from Mostafa Shaker

Graphite thin film on glass XRD peak determination?

According to the attached data of an XRD of a thin film of graphite on a glass slide. There are two peaks at (2 theta) = 26.3150 and 26.9900. What could be the physical meaning of these two peaks...

31 July 2025 6,872 2 View

Can i estimate the number of graphene layer from this graph using the shape of the 2D band of this Raman spectrum?

I prepared a graphene using Sonication assisted LPG. and this is a raman spectrum for a powder sample of this graphitic material, how can i estimate the number of layers using the 2D band Data?

01 October 2024 3,373 2 View

How can Gr/EC dispersion in ethanol be drop casted on glass without the CRE appeared on the edges of the dried films ?

the exfoliated Graphite in Ethyl cellulose EC in ethanol dispersion forms a good dispersion in the liquid state but during drying at Room temperature (without heating) in air and recrystallization...

29 September 2024 2,115 1 View

How does Ethyl cellulose polymer react with Graphene in the powder state?

Ethyl cellulose (EC) polymer is commonly used for preparation of graphene based ink to modulate ink viscosity and film forming ability. The question is how EC reacts with the pristine Graphene not...

23 September 2024 3,504 3 View

How can I get Conductive Transparent films of Copper nanowire dispersions by drop casting on glass ?

Most common deposition technique for copper nanowires dispersions is spray coating. Why it is rarely to use spin coating or drop cast for depositing thin films of high conductivity and transparency?

05 September 2024 725 0 View

Why all wet Graphene preparations are dried in vacuum not atmospheric condition?

Modified hummer method or LPE in aqueous medium for graphene preparation need to be dried in Vacuum oven rather than binder ovens. Is there a significant reason for this vacuum drying?

03 September 2024 4,649 5 View

Why are there any continuous works on these patterned polymer coating for water harvesting? Is there a problem with stability and durability ?

the patterned polymer coating is promising in atmospheric water harvesting as you have mentioned but I did not read any other related researches with their work. Are there problems with stability...

01 January 1970 2,536 2 View