Single-Crystal Growth of Nickel Nanowires: Influence of Deposition Conditions on Structural and Magnetic Properties

被引：44

作者：

Cortes, Andrea ^{[1
]}

Riveros, Gonzalo ^{[2
]}

Palma, Juan L. ^{[3
]}

Denardin, Juliano C. ^{[3
]}

Marotti, Ricardo E. ^{[4
]}

Dalchiele, Enrique A. ^{[4
]}

Gomez, Humberto ^{[1
]}

机构：

[1] Pontificia Univ Catolica Valparaiso, Inst Quim, Fac Ciencias, Valparaiso 4059, Chile

[2] Univ Valparaiso, Dept Quim & Bioquim, Fac Ciencias, Valparaiso, Chile

[3] Univ Santiago Chile, Dept Fis, Santiago 3493, Chile

[4] Fac Ingn, Inst Fis, Montevideo 11000, Uruguay

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 03期

关键词：

Electrodeposition; Nanowires; Nickel; Alumina Template; NI; ARRAYS; CO; COPPER;

D O I：

10.1166/jnn.2009.374

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper examines the influence of electrode position potential, pore size, pH, composition, and temperature of the electrolytic bath on the structure of nickel nanowires arrays electrodeposited into anodic alumina oxide porous membranes. Scanning electron microscopy, X-ray diffraction, and transmission electron microscopy analysis were employed to characterize the structural and morphological properties of the nanowires. Results show that the electrodeposition potential controls the growth of nickel nanowires along some preferential crystallographic planes. At -0.90 V (vs. Ag/AgCl) single crystalline nanowires with a strong (111) orientation were obtained. High temperatures and a moderately acid pH solution contributed to improve the single crystalline character of nanowires. The presence of chloride ions produced polycrystalline nanowires at low temperature and single crystalline nanowires at high temperature. The influence of the electrodeposition potential in their magnetic anisotropies is also reported.

引用

页码：1992 / 2000

页数：9

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