Alexander Khort

4 Questions 7 Answers 0 Followers

Questions related from Alexander Khort

What are the structural parameters of graphene for Rietveld refinement?

I have XRD of graphene-containing composite and want to make Rietveld refinement for all phases. Could anyone recommend the parameters I should use for better calculation?

07 July 2018 9,166 6 View

Is it possible to calculate amount of amorphous phase or degree of crystallinity (amorphous/crystal ratio) from XRD data?

There is material that is partly amorphous. An amount of amorphous phase has changed during thermal treatment. So, is it possible to find this change (or better absolute composition,...

01 January 2018 5,104 8 View

What is a practical limit for application of Scherrer equation for determining of size of crystals?

I have results of XRD of nanomaterials where calculated sizes of crystals are from 2 nm to 4 nm. I don't have possibility to verify these results by TEM at the moment. Previous results for another...

11 November 2017 887 5 View

What is the best reductant for getting Raney nickel by CS method?

I spent a series of experiments with glycine and always got a mixture of metallic nickel, nickel oxide and alumina in various ratios. What is the best way to decrease amount of NiO without purging...

02 February 2015 7,187 2 View