Usually nio does not have a peak between 50 and 60 degrees.But my xrd shows a high intensity peak there.Can anybody please help me
Beena Somanath Clearly you have not heated sufficiently to decompose the nitrate. A TGA analysis would be very useful for you to determine the decomposition temperature of the nitrate. You may find this in literature too. The molecular mass of pertinent species is:
- NiO 74.69
- Ni(NO3)2 182.7
- Ni(NO3)2.6H2O 290.85
If you start with the hexahydrate then you expect a mass reduction to 74.69/290.85 or ~ 25.7 % of the starting mass.
Hello, I think you can check your experiment (precisely heating) condition again. Also materials composition may be a fact. If there is Ni or Ni2O3 particles present along with NiO, peak(s) may arise within your above mentioned range. Furthermore, proper cleaning of your obtained solid mass is an equally important factor to remove any undesired species.
Regards,
MMA
Incomplete decomposition of nitrate. Check the time of heating and temperature.
Beena Somanath
A little work on RG (always recommended) brings up these references:
Article The decoration of multi walled carbon nanotubes with nickel ...
Article Thermal decomposition of nickel nitrate hexahydrate, Ni(NO3)...
In the first of the above articles (which is a free download) there is a diagram (Figure 4) indicating the TGA for Ni(NO3)2.6H2O. From that diagram one would suggest that your decomposition temperature should be > 4000C for the hexahydrate. You can request the other paper from the authors.
Dear Dr Beena Somanath . I agree with Dr Alan F Rawle . He is an expertise in XRD.
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