In the composition of Ni-Zn ferrite prepared from nitrate ores using the auto-combustion method, how many types of impurity may one obtain? Besides, the spinel structure of ferrite, I got few impurities at different angles on the XRD. What may they be?
Any impurities out of ZnO, NiO, Fe2O3, FeO may be existed?
Dear R.Hassan
If there some unwanted peaks in the XRD pattern this unwanted peaks are as a result of many reasons. May be some impurities due to chemical mixing of impurities or may be due to substrate detection during XRD.
Dear Rakibul Hassan thank you for your interesting technical question.
In the article cited below it is stated that Ni-Zn ferrite prepared from nitrate ores using the auto-combustion method was obtained free of any impurities:
Structure and properties of Ni–Zn ferrite obtained by auto-combustion method
Article Structure and properties of Ni–Zn ferrite obtained by auto-c...
Also please have a look at the following relevant article entitled
Synthesis of Ni-Zn ferrite catalysts by combustion reaction using different fuels
(see attached)
In this study traces of metallic nickel were found as impurity.
I also suggest that you use the "Search" function of ResearchGate to find and access other useful articles on this topic. Just search for the term "Ni-Zn ferrite" and click on "Publications":
https://www.researchgate.net/search.Search.html?type=researcher&query=Ni-Zn%20Ferrite
Rakibul Hassan
There may be as many as (or more than) 42 types of impurity. Will depend on the purity of the precursors, the processing involved, and the level of 'impurity' that you are seeking (%, ppm, ppb, ppt...).
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