http://www.cnr.it/ontology/cnr/individuo/prodotto/ID39490
Seeded growth of asymmetric binary nanocrystals made of a semiconductor TiO2 rod-like section and a magnetic gamma-Fe2O3 spherical domain (Articolo in rivista)
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- Seeded growth of asymmetric binary nanocrystals made of a semiconductor TiO2 rod-like section and a magnetic gamma-Fe2O3 spherical domain (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1021/ja066557h (literal)
- Alternative label
R. Buonsanti; V. Grillo; E. Carlino; C. Giannini; M. L. Curri; C. Innocenti; C. Sangregorio; K. Achterhold; F. G. Parak; A. Agostiano; P. D. Cozzoli (2006)
Seeded growth of asymmetric binary nanocrystals made of a semiconductor TiO2 rod-like section and a magnetic gamma-Fe2O3 spherical domain
in Journal of the American Chemical Society (Print); ACS, American chemical society, Washington, DC (Stati Uniti d'America)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- R. Buonsanti; V. Grillo; E. Carlino; C. Giannini; M. L. Curri; C. Innocenti; C. Sangregorio; K. Achterhold; F. G. Parak; A. Agostiano; P. D. Cozzoli (literal)
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- http://dx.doi.org/10.1021/ja066557h (literal)
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- Dipartimento di Chimica, Università di Bari, via Orabona 4, I-70126 Bari, Italy
2 TASC-INFM-CNR National Laboratory, Area Science Park - Basovizza, Bld MM, SS 14, Km 163.5,
I-34012 Trieste, Italy
3 CNR-Istituto di Cristallografia (IC), via Amendola 122/O, I-70126 Bari, Italy
4 CNR-Istituto per i Processi Chimico-Fisici (IPCF), sez. Bari, via Orabona 4, I-70126 Bari, Italy
5 LA.M.M. UdR INSTM, Dipartimento di Chimica, Università di Firenze, Via della Lastruccia 3, I-
50019 Sesto Fiorentino, Italy
6 Physik-Department E17, Technische Universität München, James-Franck-Strasse, D-85747 Garching,
Germany
7 National Nanotechnology Laboratory of CNR-INFM, Unità di Ricerca IIT, Distretto Tecnologico
ISUFI, via per Arnesano km 5, I-73100 Lecce, Italy. (literal)
- Titolo
- Seeded growth of asymmetric binary nanocrystals made of a semiconductor TiO2 rod-like section and a magnetic gamma-Fe2O3 spherical domain (literal)
- Abstract
- Asymmetric binary nanocrystals (BNCs), comprising one c-axis elongated anatase TiO2 section and one gamma-Fe2O3 spherical domain attached together, are synthesized by heterogeneous nucleation of iron oxide onto the longitudinal facets of TiO2 nanorods in a ternary surfactant mixture. The topologically controlled composition of the BNCs is ascertained by a combination of powder X-ray diffraction, Raman and Mössbauer spectroscopy, high-angle annular dark-field imaging, and high-resolution transmission electron microscopy lattice fringe mapping, while their size-dependent magnetic behavior is demonstrated by ac susceptibility measurements. The heteroepitaxial growth proceeds through a mechanism never observed before for colloidal nanoheterostructures: the two domains share a restricted and locally curved junction region, which accommodates efficiently the interfacial strain and retards the formation of misfit dislocations. It is believed that these BNCs, which combine the properties of two technologically relevant oxide materials, can pave the way to reinforced applications in several fields of nanoscience, such as in photocatalysis, in malignant cell treatments, and in nanocrystal assembly. (literal)
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