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The New High-Pressure Phases of Nitrogen-Rich Ag–N Compounds

The high-pressure phase diagram of Ag–N compounds is enriched by proposing three stable high-pressure phases (P4/mmm-AgN(2), P1-AgN(7) and P-1-AgN(7)) and two metastable high-pressure phases (P-1-AgN(4) and P-1-AgN(8)). The novel N(7) rings and N(20) rings are firstly found in the folded layer struc...

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Autores principales: Liu, Ran, Xu, Dan, Yao, Zhen, Niu, Shifeng, Liu, Bingbing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320057/
https://www.ncbi.nlm.nih.gov/pubmed/35888452
http://dx.doi.org/10.3390/ma15144986
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author Liu, Ran
Xu, Dan
Yao, Zhen
Niu, Shifeng
Liu, Bingbing
author_facet Liu, Ran
Xu, Dan
Yao, Zhen
Niu, Shifeng
Liu, Bingbing
author_sort Liu, Ran
collection PubMed
description The high-pressure phase diagram of Ag–N compounds is enriched by proposing three stable high-pressure phases (P4/mmm-AgN(2), P1-AgN(7) and P-1-AgN(7)) and two metastable high-pressure phases (P-1-AgN(4) and P-1-AgN(8)). The novel N(7) rings and N(20) rings are firstly found in the folded layer structure of P-1-AgN(7). The electronic structure properties of predicted five structures are studied by the calculations of the band structure and DOS. The analyses of ELF and Bader charge show that the strong N–N covalent bond interaction and the weak Ag–N ionic bond interaction constitute the stable mechanism of Ag–N compounds. The charge transfer between the Ag and N atoms plays an important role for the structural stability. Moreover, the P-1-AgN(7) and P-1-AgN(8) with the high-energy density and excellent detonation properties are potential candidates for new high-energy density species.
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spelling pubmed-93200572022-07-27 The New High-Pressure Phases of Nitrogen-Rich Ag–N Compounds Liu, Ran Xu, Dan Yao, Zhen Niu, Shifeng Liu, Bingbing Materials (Basel) Article The high-pressure phase diagram of Ag–N compounds is enriched by proposing three stable high-pressure phases (P4/mmm-AgN(2), P1-AgN(7) and P-1-AgN(7)) and two metastable high-pressure phases (P-1-AgN(4) and P-1-AgN(8)). The novel N(7) rings and N(20) rings are firstly found in the folded layer structure of P-1-AgN(7). The electronic structure properties of predicted five structures are studied by the calculations of the band structure and DOS. The analyses of ELF and Bader charge show that the strong N–N covalent bond interaction and the weak Ag–N ionic bond interaction constitute the stable mechanism of Ag–N compounds. The charge transfer between the Ag and N atoms plays an important role for the structural stability. Moreover, the P-1-AgN(7) and P-1-AgN(8) with the high-energy density and excellent detonation properties are potential candidates for new high-energy density species. MDPI 2022-07-18 /pmc/articles/PMC9320057/ /pubmed/35888452 http://dx.doi.org/10.3390/ma15144986 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Ran
Xu, Dan
Yao, Zhen
Niu, Shifeng
Liu, Bingbing
The New High-Pressure Phases of Nitrogen-Rich Ag–N Compounds
title The New High-Pressure Phases of Nitrogen-Rich Ag–N Compounds
title_full The New High-Pressure Phases of Nitrogen-Rich Ag–N Compounds
title_fullStr The New High-Pressure Phases of Nitrogen-Rich Ag–N Compounds
title_full_unstemmed The New High-Pressure Phases of Nitrogen-Rich Ag–N Compounds
title_short The New High-Pressure Phases of Nitrogen-Rich Ag–N Compounds
title_sort new high-pressure phases of nitrogen-rich ag–n compounds
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320057/
https://www.ncbi.nlm.nih.gov/pubmed/35888452
http://dx.doi.org/10.3390/ma15144986
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