I have synthesized Titanium carbide (Ti3C2) from Ti3SiC2 tiranium silicon carbide using wet chemical etching method.but for xrd analysis I am using xpert software and Jade.but in these two software I can not get the elemental composition of my sample.Xpert sofware is showing " No candidates found" I don't understand what is the problem.If its related to PDF cards then please send me the pdf cards of Titanium silicon carbide and titanium carbide?
here is my email id ; [email protected]
Qandeel Noor, I'm attaching a CIF file for Ti3SiC2 that I built based on lattice parameters from various articles. Generally, not all MAX phases are listed in most databases, as we're still discovering them even till today.
For MXenes (Mn+1XnTx), the CIF is more complicated. Generally, the c-lattice parameter varies based on M (Ti, Nb, V, etc.), X (C/N), n (1-4), Tx (surface groups), and most importantly the intercalated molecules in between the MXene sheets. It also depends on if the MXene is multilayer or delaminated flakes. This is because the MXene flakes will either be delaminated and all align in one direction, or will be multilayer and held in the accordion-like arrangement. Because of this, any CIF/card that you get on MXenes will only be accurate for the exact same synthesis/drying conditions. I recommend instead to analyze the MXene structure by hand. This article describes exactly how to do this: Article Characterization of MXenes at Every Step, from Their Precurs...
Look at Figure 6 in this article, and the description around it. In this article, I spend a great deal of time explaining exactly what you see with each type of MXene and how it's processed.
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