Hello to everyone,
The Pt shell can be controlled/conformally deposited on core materials to enhance its performance while reducing its loading.
As far as i know, we need to calculate the thickness of Pt shell first and then divide the thickness by lattice fringe spacing to get number of layers of Pt.
Here, i would like to ask from the researchers that,
1) How can we exactly calculate the number of atomic layer(s) of Pt? Please make me clear and give me some examples if possible.
2) Furthermore, how can we calculate the thickness by TEM images?
Thanks:
Have no idea about your specimen, but to get an approximate result you can measure thickness of a Pt layer (TEM picture) and divide it by a lattice parameter.
thank you Vladimir Dusevich . Do you have any article regarding this please?
Munir Ahmad if you want to count how many atoms is your layer thick, you can either use an image at atomic resolution and count the atoms by "hand" or using software tools; if such images are not at hand, do as Vladimir Dusevich suggested: you can measure the thickness of the Pt layer from TEM images ("usually" equipped with a scale-bar) and divide by Pt lattice (assuming the Pt coating is crystalline, you can find the lattice parameters in references).
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