Synthesis of dry SmCl₃ from Sm₂O₃ revisited. Implications for the encapsulation of samarium compounds into carbon nanotubes
Martincic, Markus (Institut de Ciència de Materials de Barcelona)
Frontera, Carlos (Institut de Ciència de Materials de Barcelona)
Pach, Elzbieta (Institut Català de Nanociència i Nanotecnologia)
Ballesteros, Belén (Institut Català de Nanociència i Nanotecnologia)
Tobias, Gerard (Institut de Ciència de Materials de Barcelona)

Date:	2016
Abstract:	Samarium is a rare-earth metal with several applications in materials science. It is used in organic chemistry as a reducing agent and it is the active payload in samarium-153 lexidronam, a drug being used for palliative treatment of bone metastases. Recently, the encapsulation of samarium compounds into the cavities of carbon nanotubes has attracted interest for the development of the next generation of radiopharmaceuticals. In the present study, we explore different routes to afford the encapsulation of samarium based materials into single-walled carbon nanotubes. Anhydrous samarium(III) chloride, despite being highly hygroscopic, raises as an excellent candidate to achieve a high filling efficiency. We provide a protocol that allows the synthesis of anhydrous samarium(III) chloride starting from samarium(III) oxide in a fast and simple manner. Synchrotron X-ray powder diffraction confirmed the crystallinity and purity of the synthesized SmCl₃.
Grants:	European Commission 290023 Ministerio de Economía y Competitividad SEV-2015-0496 Ministerio de Economía y Competitividad SEV-2013-0295
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Thermogravimetric analyisis ; Carbon nanotubes ; Electron microscopy ; Samarium(III) chloride ; Synchrotron beam irradiation ; X-ray powder diffraction
Published in:	Polyhedron, Vol. 116 (September 2016) , p. 116-121, ISSN 0277-5387

DOI: 10.1016/j.poly.2016.03.045

Postprint 13 p, 515.3 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles