Confined linear carbon chains as a route to bulk carbyne

Shi, Lei; Rohringer, Philip; Suenaga, Kazu; Niimi, Yoshiko; Kotakoski, Jani; Meyer, Jannik C.; Peterlik, Herwig; Wanko, Marius; Cahangirov, Seymur; Rubio, Angel; Lapin, Zachary J.; Novotny, Lukas; Ayala, Paola; Pichler, Thomas

doi:10.1038/nmat4617

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Confined linear carbon chains as a route to bulk carbyne

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Rubio, Angel
Nano-Bio Spectroscopy Group and European Theoretical Spectroscopy Facility (ETSF), Universidad del País Vasco, CFMCSIC-UPV/EHU-MPC&DIPC, 20018 San Sebastián, Spain;
Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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http://dx.doi.org/10.1038/nmat4617
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http://arxiv.org/abs/1507.04896
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1507.04896v2.pdf
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Citation

Shi, L., Rohringer, P., Suenaga, K., Niimi, Y., Kotakoski, J., Meyer, J. C., et al. (2016). Confined linear carbon chains as a route to bulk carbyne. Nature Materials, 15(6), 634-639. doi:10.1038/nmat4617.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-1DE8-C

Abstract

Strong chemical activity and extreme instability in ambient conditions characterize carbyne, an infinite sp¹ hybridized carbon chain. As a result, much less has been explored about carbyne as compared to other carbon allotropes such as fullerenes, nanotubes and graphene. Although end-capping groups can be used to stabilize carbon chains, length limitations are still a barrier for production, and even more so for application. We report a route for the bulk production of long acetylenic linear carbon chains protected by thin double-walled carbon nanotubes. The synthesis of very long arrangements is confirmed by a combination of transmission electron microscopy, X-ray diraction and (near-field) near-resonance Raman spectroscopy. Our results establish a route for the bulk production of exceptionally long and stable chains composed of more than 6,000 carbon atoms, representing an elegant forerunner towards the final goal of carbyne’s bulk production.