when the nanoparticles tests by XRD techniques the peaks appears sharpness
Dear Abdulhadi,
Well the sharp XRD peaks normally indicate high crystallinity of your nanoparticles. Moreover, a well prepared sample will also contribute little bit on peak sharpness.
All the best
Rehan
Check your sample using other methods e.g. SEM It is possible that you have broad size distribution and sharp peaks comes from large particles
Yes Bartlomiej is right that the shape peaks can also be from larger particles.
A few large particles will directly govern your diffractogram. I have learned in my studies that a careful sample preparation is always required, huge particles might already be identified by using light microscopy, which is mandatory in my mind ... Kind regards, Dirk
I agree with all of answers as the sharp peaks indicates that larger particles of your sample . At same time may be the particles agglomeration which in this case have to test your sample by TEM to investigate the final size. Please always to analysis have to combined the XRD and TEM together and if you have particle distribution will be good confirmation.
Dear colleague Abdulhadi Kadhum,
Have a nice time day.
Herein fined two links contain much information about the increasing or decreasing XRD pattern intensity.
I wish this is useful and help you.
yours
A. EL-Denglawey
https://www.researchgate.net/post/W...mpared_to_mixed_metal_oxide_NiCo2O4
https://www.researchgate.net/post/W...g_level_of_a_dopant_in_XRD_pattern3
The sharp peaks in XRD means the grains size is very small , which can be determined using Deby-Sherrer equation .
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