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Single walled carbon nanotubes at ultra-high pressure/stress
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0002-4254-5020
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0002-5145-1560
2013 (engelsk)Inngår i: Bulletin of the American Physical Society, 2013, Vol. 58Konferansepaper, Meeting abstract (Fagfellevurdert)
Abstract [en]

We report on the first study of single walled nanotubes (SWCNTs) synthesized by HiPCO method under pressure/stress up to 70 GPa aimed at probing structural stability of small diameter SWCNTs and synthesis of new nanostructured carbon phases. Firstly, the material has been exposed to 25 GPa. Raman spectra of the recovered of material exhibited extremely high defect density and evident recovery of the radial breathing mode (RBM) band with some intensity profile alteration. Secondly, the material was pressurized subsequently to 70 GPa followed by a relatively fast pressure release. Raman characterization provides indications of a transformation of the material to a new structural state as the result of the second pressure cycle. We discuss the structural evolution of the system en-route the final structure which is presumably comprised of deformed graphene nanoribbons and/or polymerized CNTs in addition to the smallest diameter SWCNTs which survived ultra-high pressure/stress.

sted, utgiver, år, opplag, sider
2013. Vol. 58
HSV kategori
Forskningsprogram
Experimentell fysik
Identifikatorer
URN: urn:nbn:se:ltu:diva-35212Lokal ID: 9a63b4a7-a217-4c9c-9d06-728970ab68b7OAI: oai:DiVA.org:ltu-35212DiVA, id: diva2:1008464
Konferanse
Biennial International Conference of the APS Topical Group on Shock Compression of Condensed Matter held in conjunction with the 24th Biennial Intl. Conference of the Intl. Association for the Advancement of High Pressure Science and Technology (AIRAPT) : 07/07/2013 - 12/07/2013
Merknad
Godkänd; 2013; 20130821 (maxnoe)Tilgjengelig fra: 2016-09-30 Laget: 2016-09-30 Sist oppdatert: 2018-04-25bibliografisk kontrollert

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http://www.aps.org/meetings/baps/archives-2013.cfmhttp://meetings.aps.org/Meeting/SHOCK13/Session/F1.41

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Noël, MaximeMases, MattiasSoldatov, Alexander

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