Synthesis and characterization of superparamagnetic Ni-Pt nanoalloy

Mandal, Madhuri ; Kundu, Subrata ; Sau, Tapan K. ; Yusuf, S. M. ; Pal, Tarasankar (2003) Synthesis and characterization of superparamagnetic Ni-Pt nanoalloy Chemistry of Materials, 15 (19). pp. 3710-3715. ISSN 0897-4756

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Official URL: http://pubs.acs.org/doi/abs/10.1021/cm030246d

Related URL: http://dx.doi.org/10.1021/cm030246d

Abstract

A room-temperature wet chemical method of synthesis for sphere- and rod-shaped magnetic “solid solution” type Ni−Pt nanoparticles in cetyltrimethylammonium bromide (CTAB) micelle is reported. The particles have been found to be moderately monodispersed without adopting any further size-selection procedure. The composition of the alloy becomes tunable through adjustment of the ratio of the reactants. The temperature-dependent magnetic property, size distribution, and percentage composition of the alloyed structures are characterized by SQUID magnetometer, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and electron dispersive X-ray (EDX) analyses. The preferential evolution of nanorods over spherical particles in higher surfactant concentrations and the coalescence of the magnetic particles have been examined.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:112385
Deposited On:01 Dec 2017 11:49
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