Magnetically Active and Coated Gadolinium-Filled Carbon Nanotubes
authors Fidiani, E; Costa, PMFJ; Wolter, AUB; Maier, D; Buechner, B; Hampel, S
nationality International
journal JOURNAL OF PHYSICAL CHEMISTRY C
keywords MRI CONTRAST AGENTS; GADONANOTUBES; CAPILLARITY; GDI2
abstract Gd-filled carbon nanotubes (which include the so-called gadonanotubes(1)) have been attracting much interest due to their potential use in medical diagnostic applications. In the present work, a vacuum filling method was performed to confine gadolinium(III) iodide in carbon nanotubes (CNTs). Filling yields in excess of 50% were obtained. Cleaning and dosing of the external walls was undertaken, as well as the study of the filled CNT magnetic properties. Overall, we found that the encapsulating procedure can lead to reduction of the lanthanide metal and induce disorder in the initial GdI3-type structure. Notwithstanding, the magnetic response of the material is not compromised, retaining a strong paramagnetic response and an effective magnetic moment of similar to 6 mu B. Our results may entice further investigation into whether an analogous Gd3+ to Gd2+ reduction takes place in other Gd-filled CNT systems.
publisher AMER CHEMICAL SOC
issn 1932-7447
year published 2013
volume 117
issue 32
beginning page 16725
ending page 16733
digital object identifier (doi) 10.1021/jp405768p
web of science category Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
subject category Chemistry; Science & Technology - Other Topics; Materials Science
unique article identifier WOS:000323301100049
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journal impact factor 4.484
5 year journal impact factor 4.691
category normalized journal impact factor percentile 73.464
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