Afza Shahid

12 Questions 15 Answers 0 Followers

Questions related from Afza Shahid

Suggest the best dispersant for silver oxide nanoparticles?

Should I use water, ethanol or ethylene glycol? Which one is best to use?

08 August 2018 1,751 9 View

Silver oxide nanoparticles are Hydrophobic or Hydrophilic ?

How to determine whether the nanoparticles are hydrophilic or hydrophobic without measurement of contact angle?

08 August 2018 6,390 0 View

How can I vary lattice constant over a range in LAMMPS?

I am trying to plot Energy vs Volume plot by varying lattice constant. By which command can I vary the lattice constant in LAMMPS?

04 April 2018 2,482 3 View

How to convert a cif file into lammps file using atomsk?

I have downloaded a cif file for a crystal structure to use it in LAMMPS input. I'm trying to convert this cif file into lammps file by Atomsk but getting an error. I'm using the command "atomsk...

03 March 2018 6,178 2 View

How to check the homogeneity of a mixture of dry powders?

I want to know that how we can check that powder is homogeneously mixed or not? How can we assess the homogeneity of powder mixture. Lets say we have a mixture of metal and ceramic powder. The...

02 February 2018 1,606 7 View

How do we know the isoelectric point of powder dispersion without measuring the zeta potential of the powder dispersion?

For making powder dipersions for DLS analysis, the pH of the dispersions has to be adjusted according to the pH at the isoelectric point. How do we know the isoelectric point of the powder...

10 October 2017 2,966 11 View

In DLS analysis, is it necessary to add a dispersant for all types of powder sample when preparing a stable dispersion for particle size analysis?

For DLS analysis, the powder sample should be well dispersed in a suitable solvent with minimum agglomeration. For this purpose dispersants are added. My question is that: Is it necessary to use a...

02 February 2017 609 2 View

Is it recommended to use glycerine as solvent for DLS size measurements?

I am measuring the size distribution of PbO particles with glycerine as solvent with Malvern zetasizer. Is it ok to use glycerine as solvent. I am also adding dispersant in it.

01 January 2017 3,965 7 View

The ID/IG value is found to be 0.7 in Raman spectrum of carbon. What can I predict about the resulting structure of carbon?

The ID/IG value is found to be 0.7 in Raman spectrum of carbon. What can I predict about the resulting structure of carbon? (Raman spectrum consisting of D and G peak)

10 October 2015 5,776 5 View

What is the significance of width of D peak in Raman spectrum of disordered graphite (amorphous carbon)?

Raman spectrum of disordered graphite or amorphous carbon.

10 October 2015 9,293 2 View

What is the significance of blue or red shift in D and G peak of Raman spectrum of disordered graphite(amorphous carbon)?

Raman spectrum of disordered graphite with D and G peak.

10 October 2015 9,843 0 View

How do I find the intensity ratio in Raman spectrum?

I want to find the intensity ratio for disordered graphite!

08 August 2015 5,483 4 View