Self-organization of nickel nanoparticles dispersed in acetone: From separate nanoparticles to three-dimensional superstructures
Por:
Hernández-Pérez, I., Barriga-Arceo, L.D., Garibay Febles, V., Suárez-Parra, R., Paz, R.L., Santiago, P., Rendón, L., Jara, J.A., Tapia, J.C.E., González-Reyes, L.
Publicada:
1 feb 2017
Categoría:
Chemistry (miscellaneous)
Resumen:
Sonochemical synthesis of monodisperse nickel nanoparticles (Ni-NPs) by
reduction of Ni acetylacetonate in the presence of polyvinylpyrrolidone
stabilizer is reported. The Ni-NPs size is readily controlled to 5
nanometer diameter with a standard deviation of less than 5%. The
as-prepared Ni-NPs sample was dispersed in acetone, for 4 weeks. For
structural analysis was not applied to a magnetic field or heat
treatment as key methods to direct the assembly. The transition from
separate Ni-NPs into self-organization of three dimensions (3D)
superstructures was studied by electron microscopy. Experimental
analysis suggests that the translation and rotation movement of the
Ni-NPs are governed by magnetic frustration which promotes the formation
of different geometric arrangements in two dimensions (2D). The
formation of 3D superstructures is confirmed from scanning electron
microscopy revealing a layered domain that consists of staking of
several monolayers having multiple well-defined supercrystalline
domains, enabling their use for optical, electronic and sensor
applications. (C) 2016 King Saud University. Production and hosting by
Elsevier B.V.
Filiaciones:
Universidad Autónoma Metropolitana-A, Departamento de Ciencias Básicas, Av. Sn. Pablo No. 180, México 02200, D.F., Mexico
Instituto Politécnico Nacional, Departamento de Ingeniería Metalúrgica y Materiales, ESIQIE-UPALM, México, D.F. 07738, Mexico
Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas Norte 152 Col. San Bartolo Atepehuacan, México, D.F. C.P 07730, Mexico
Instituto de Energías Renovables, IER-UNAM, Priv. Xochicalco S/N, Temixco, Morelos 62580, Mexico
Instituto de Física, Universidad Nacional Autónoma de, México, D.F. México, Mexico
Universidad ESAN, Alonso de Molina 1652 Monterrico, Surco, Lima, Peru
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