Liu, Lingyu ; Hu, Meng ; Pan, Yilong ; Xiong, Mei ; Liu, Chao ; Zhang, Yang ; Luo, Kun ; Zhao, Zhisheng ; Gao, Guoying ; Yu, Dongli ; He, Julong (2018)
Mechanically ductile 3D sp–sp2 microporous carbon.
In: Journal of Materials Science, 53 (6)
doi: 10.1007/s10853-017-1854-3
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A new sp–sp 2-hybridized tetragonal carbon allotrope, namely Tetra-carbon, is predicted through the evolutionary particle swarm structural search. Tetra-carbon has a 3D framework composed of sp 2 carbon helixes connected by linear sp carbon chains, similar to the interconnected network of propadienyl groups, which forms the well-proportioned microporous structure. Tetra-carbon is thermodynamically more stable than known graphdiyne and carbyne carbon and also shows mechanical and dynamic stabilities at ambient pressure. Tetra-carbon is a semiconductor with an indirect band gap of 3.27 eV and has anisotropic tensile strengths with an unexpected large tensile strain of 0.64 along the [001] direction. Base on the analysis of Poisson’s ratios as well as the tensile strains, it is significantly revealed that Tetra-carbon is a mechanically ductile microporous carbon allotrope in contrast with the known brittle carbons such as diamond, potentially applied in the fields where the ductile metals are available.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Liu, Lingyu ; Hu, Meng ; Pan, Yilong ; Xiong, Mei ; Liu, Chao ; Zhang, Yang ; Luo, Kun ; Zhao, Zhisheng ; Gao, Guoying ; Yu, Dongli ; He, Julong |
| Art des Eintrags: | Bibliographie |
| Titel: | Mechanically ductile 3D sp–sp2 microporous carbon |
| Sprache: | Englisch |
| Publikationsjahr: | 2018 |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Materials Science |
| Jahrgang/Volume einer Zeitschrift: | 53 |
| (Heft-)Nummer: | 6 |
| DOI: | 10.1007/s10853-017-1854-3 |
| URL / URN: | https://doi.org/10.1007/s10853-017-1854-3 |
| Kurzbeschreibung (Abstract): | A new sp–sp 2-hybridized tetragonal carbon allotrope, namely Tetra-carbon, is predicted through the evolutionary particle swarm structural search. Tetra-carbon has a 3D framework composed of sp 2 carbon helixes connected by linear sp carbon chains, similar to the interconnected network of propadienyl groups, which forms the well-proportioned microporous structure. Tetra-carbon is thermodynamically more stable than known graphdiyne and carbyne carbon and also shows mechanical and dynamic stabilities at ambient pressure. Tetra-carbon is a semiconductor with an indirect band gap of 3.27 eV and has anisotropic tensile strengths with an unexpected large tensile strain of 0.64 along the [001] direction. Base on the analysis of Poisson’s ratios as well as the tensile strains, it is significantly revealed that Tetra-carbon is a mechanically ductile microporous carbon allotrope in contrast with the known brittle carbons such as diamond, potentially applied in the fields where the ductile metals are available. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 15 Jan 2018 10:05 |
| Letzte Änderung: | 30 Jul 2018 05:45 |
| PPN: | |
| Sponsoren: | This work was supported by National Natural Science Foundation of China (NSFC) (51421091, 51472213, 51332005, 51525205, and 51672238). |
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