Pressure-stabilized polymerization of nitrogen in alkaline-earth-metal strontium nitrides

2020 ◽  
Vol 22 (9) ◽  
pp. 5242-5248 ◽  
Author(s):  
Shuli Wei ◽  
Lili Lian ◽  
Yan Liu ◽  
Da Li ◽  
Zhao Liu ◽  
...  

We predicted several N-rich structures under high pressure. C2/c-SrN4 can make the ambient-pressure recovery possible. The energy densities for C2/m-SrN3 and P1̄-SrN5 are 1.08 and 1.09 kJ g−1, respectively, similar to that of common energy materials.

2021 ◽  
Author(s):  
Yumi Tsuchiya ◽  
Zefeng Wei ◽  
Thibault Broux ◽  
Cédric Tassel ◽  
Hiroki Ubukata ◽  
...  

The high-pressure structures of alkaline earth metal hydride-fluorides AHF (A = Ca, Sr, Ba) were investigated up to 8 GPa. While AHF adopts the fluorite-type structure (Fm-3m) at ambient pressure...


2017 ◽  
Vol 19 (13) ◽  
pp. 9246-9252 ◽  
Author(s):  
Shuli Wei ◽  
Da Li ◽  
Zhao Liu ◽  
Xin Li ◽  
Fubo Tian ◽  
...  

The P1̄-MgN3 and P1̄-MgN4 are predicted to become energetically stable under pressure, suggesting that it may be prepared by high-pressure synthesis. P1̄-MgN3 and P1̄-MgN4 are expected to release an enormously large amount of energy (2.83 and 2.01 kJ g−1). The present study encourages experimental exploration of these promising materials in the future.


2018 ◽  
Vol 122 (2) ◽  
pp. 1267-1279 ◽  
Author(s):  
Claudio Cazorla ◽  
Arun K. Sagotra ◽  
Meredith King ◽  
Daniel Errandonea

ACS Omega ◽  
2020 ◽  
Vol 5 (41) ◽  
pp. 26786-26794
Author(s):  
Adebayo A. Adeleke ◽  
Ericmoore E. Jossou ◽  
Nnanna U. Ukoji ◽  
Adebayo O. Adeniyi ◽  
Peter O. Egbele

2020 ◽  
Vol 34 (19n20) ◽  
pp. 2040056 ◽  
Author(s):  
A. G. V. Terzidou ◽  
T. Nakagawa ◽  
N. Yoshikane ◽  
R. Rountou ◽  
J. Rix ◽  
...  

The structural stability and electronic properties of [Formula: see text] are probed by means of high-pressure Raman spectroscopy using two different pressure transmitting media that lead to practically identical results. Although [Formula: see text] is isostructural with the rare-earth metal fulleride, [Formula: see text] of the same stoichiometry, the pressure coefficients of characteristic intramolecular [Formula: see text] modes are larger than those in the [Formula: see text] counterpart but similar to those in the pristine [Formula: see text] solid. Since the reduced pressure coefficients in the Sm fulleride have been attributed to strong [Formula: see text] coupling, our findings for the isostructural Ca fulleride are compatible with a reduced orbital mixing and [Formula: see text] coupling.


2019 ◽  
Author(s):  
Nga Phung ◽  
Hans Köbler ◽  
Diego Di Girolamo ◽  
Thi Tuyen Ngo ◽  
Gabrielle Sousa e Silva ◽  
...  

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