I have deposited metal oxides on nickel foam by hydrothermal method. I want to do XRD of my sample. Can XRD on nickel foam done on nickel foam itself or we have to make powder then do powder XRD of the samples?
Dear Jyoti Raghav many thanks for asking this very interesting technical question. Please have a look at the following potentially useful research article which might help you in your analysis. In this study the authors report the XRD characterization of nickel foam:
Characterizations of nickel mesh and nickel foam current collectors for supercapacitor application
Article Characterizations of Nickel Mesh and Nickel Foam Current Col...
Fortunately this article has been posted by the authors as public full text on RG. Thus it can be freely downloaded as pdf file.
Good luck with your research and best wishes!
Step 1: The scholar or researcher first to take the PXRD of metal oxides before coating nickel form.
Step 2: Again you will take the PXRD of metal oxides with deposited on Nickel form.
Finally compare both pure and nickel coated. we observed some difference in both samples as follows;
1. changing the peaks positions
2. peak intensity and etc,
Dear Jyoti Raghav ,
in addition to the answers of Frank T. Edelmann and Ramesh Vadivel
I will give a direct answer to your question;
you know that powdering the sample will prevent texture/ preferred orientation artifacts in your XRD pattern. So you should do the powdering.
Ramesh Vadivel indicated that already by using the term 'PXRD' (=powder XRD).
But you should test whether your Ni foam itself has got preferred orientation of the crystallites.
So please perform an XRD scan of your Ni foam prior to powdering and after powdering this sample do the PXRD scan and then compare...
The peak positions of both scans should be identical but the relative peak heights (or better peak integrals) may be different.
Also for your coated Ni foam you should do the two tests. However in the milled/ crushed sample you will 'see' much stronger Ni peaks compared to the unmilled sample because in the unchrushed sample the coating will attenuate the Ni foam peaks (e.g. down to 'zero', if the coating is thick enough).
Additional remark:
what metals in the metal oxides do you use? For the case of Co, Fe and Mn you should go for a Fe tube (Fe K-alpha) instead of a Cu tube in order to prevent fluorescence background.
Good luck ...
Dear Jyoti Raghav,
I strongly agreed Dr. Gerhard Martens answers.
Good luck.....
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