A Preliminary Study on the Synthesis and Characterization of Multilayered Ag-Co Magnetic Nanowires Fabricated via the Electrodeposition MethodReportar como inadecuado




A Preliminary Study on the Synthesis and Characterization of Multilayered Ag-Co Magnetic Nanowires Fabricated via the Electrodeposition Method - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

The Scientific World JournalVolume 2013 2013, Article ID 837048, 5 pages

Research Article

Department of Chemical and Materials Engineering, Ming Hsin University of Science and Technology, Hsinfeng, Hsinchu 304, Taiwan

School of Defense Science, Chung Cheng Institute Technology, National Defense University, Daxi, Taoyuan 335, Taiwan

Wapeon System Center, Chung Cheng Institute Technology, National Defense University, Daxi, Taoyuan 335, Taiwan

Received 1 July 2013; Accepted 31 July 2013

Academic Editors: C. W. Kan and C. Moura

Copyright © 2013 Cheng-Hsiung Peng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A single-bath electrodeposition method was developed to integrate multilayer Ag-Co nanowires with a commercial anodic alumina oxide AAO template with a pore diameter of 100–200 nm. An electrolyte system containing silver nitride and cobalt sulfide was studied using cyclic voltammetry, and the electrodeposition rate was varied to optimize the electrodeposition conditions. A constant stepwise potential and a variable cation ratio of Co

-Ag

were used during electrodeposition. After the dissolution of the template in aqueous NaOH solution, multilayered Ag-Co nanowires were obtained with a composition of Co-Ag80Co20, as identified by XRD and TEM, when Co

-Ag

= 150. By annealing at 200°C for 1 h, uniformly structured Co99.57-Ag100 nanowires were obtained. Compared with pure Co nanowires, the magnetic hysteresis loops showed a greater magnetic anisotropy for Co99.57-Ag100 nanowires than for pure Co nanowires, corresponding to a change in the easy axis upon magnetization.





Autor: Cheng-Hsiung Peng, Tsung-Yung Wu, and Chyi-Ching Hwang

Fuente: https://www.hindawi.com/



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