I have took the XRD of carbon nano-particles and by using Scherrer formula, I have got the crystallize size is 32 nm. So can I use the Scherrer formula on carbonaceous material. Or Scherrer formula formaula is valid to metals only.
Yes, you can use Scherrer formula for the calculation of crystallite size for the materials having crystallite/particle size well below 100 nm.
Dinesh Kumar Thanks.
I have got the crystallite size is bigger than particles size. what does it mean?
I have calculated the crystallize size using the Raman, I have the got the same crystallize size. Its exceptional case or it is happen frequently.
Cohererent domain size is not the same as particle size. Have you correct the instrumental broadening before measuring coherent domain size using XRD?. Is the synthesized carbon nanoparticles have crystalline chracter or amorphous?. Please, read more about these issues in literature.
Thanks Mohammed M. Obeid
My material is purely crystalline as per the HRTEM images. As I can easily see the lattice fringes and TEM average size is 26 nm and crystallize size is 32 nm. Is it happen commonly or its an instrumental error.
As I have the took the calibrated instrument before that doing the experiments. The graphite powder was took before and its JCPDS number matchs with the prvious reports.
So what conclusion I can draw before going into further studies.
As you know, Scherrer formula has some limitations. This method dose not take into account the peak broadening caused by lattice strain. So, I recommend using more advanced techniques, such as W-H plot or Rietveld refinement. Further, you have to correct the instrumental braodening using SRM such as silicon or LaB6 that show strain free and large domain size >1000 A.
https://www.researchgate.net/post/What_is_the_difference_between_crystallite_size_grain_size_and_particle_size
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