Issue 38, 2017

On the viability of Mg extraction in MgMoN2: a combined experimental and theoretical approach

Abstract

Layered MgMoN2 was prepared by solid state reaction at high temperature between Mo and Mg3N2 in N2 which represents a simple synthetic pathway compared to the previously reported method that used NaN3 as the nitrogen source. The crystal structure of MgMoN2 was studied by synchrotron X-ray and neutron powder diffraction. The feasibility of oxidizing this compound and concomitantly extracting magnesium from the structure was assessed by both chemical and electrochemical approaches, using different protocols. The X-ray diffraction patterns of the oxidized samples do not exhibit any relevant difference with respect to that of the as prepared MgMoN2 and no differences in the cell parameters are deduced from Rietveld refinements. No hints pointing at the presence of any amorphous phase are observed either. These results are rationalized through DFT calculated energy barriers for Mg2+ ion migration in MgMoN2.

Graphical abstract: On the viability of Mg extraction in MgMoN2: a combined experimental and theoretical approach

Article information

Article type
Paper
Submitted
18 Jul 2017
Accepted
04 Sep 2017
First published
04 Sep 2017

Phys. Chem. Chem. Phys., 2017,19, 26435-26441

On the viability of Mg extraction in MgMoN2: a combined experimental and theoretical approach

R. Verrelli, M. E. Arroyo-de-Dompablo, D. Tchitchekova, A. P. Black, C. Frontera, A. Fuertes and M. R. Palacin, Phys. Chem. Chem. Phys., 2017, 19, 26435 DOI: 10.1039/C7CP04850E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements