Fabrication and magnetic properties of cobalt nanorod arrays containing a number of ultrafine nanowires electrodeposited within an AAO/SBA-15 template

Guangbin Ji*, Zhihong Gong, Yousong Liu, Xiaofeng Chang, Youwei Du, M. Qamar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Arrays of cobalt nanorods consisting of a number of nanowires have been fabricated by the electrochemical method using an anodic-aluminum oxide (AAO)/mesoporous-silica (SBA-15) composite. Microscopic studies clearly display that each nanorod (with a diameter of ∼200 nm) of the array was consisting of a number of cobalt nanowires which exhibit an average diameter of 3 nm. The observed hysteresis loops measured at room temperature indicate that the magnetic shape anisotropy of cobalt mesostructures, i.e. the parallel and perpendicular squarenesses of 0.5 and 0.1, respectively have been estimated. The maximum value of the coercivity measured perpendicular to the sample axis shows a value of 330 Oe and it was found that the coercivity decreases by increasing the temperature which is possibly caused by thermal disturbance inside the arrays.

Original languageEnglish
Pages (from-to)1151-1155
Number of pages5
JournalSolid State Communications
Volume151
Issue number17
DOIs
StatePublished - Sep 2011

Bibliographical note

Funding Information:
Financial support from the National Natural Science Foundation of China ( 50701024 ) and Natural Science Foundation of Jiangsu Province of China (No: BK2010497 ) are gratefully acknowledged.

Keywords

  • A. Mesoporous Co nanoarrays
  • B. AAO/SBA-15 composite templates
  • C. Electrodeposition

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Fabrication and magnetic properties of cobalt nanorod arrays containing a number of ultrafine nanowires electrodeposited within an AAO/SBA-15 template'. Together they form a unique fingerprint.

Cite this