Distinguishing nanowire and nanotube formation by the deposition current transients

• Type: Article in International Scientific Journal
• Date: 2012

Authors

proenca, mariana p. (Author) Other; sousa, celia t. (Author) Other; ventura, joao (Author) FCUP; vazquez, manuel (Author) Other; araujo, joao p. (Author) FCUP

Journal

Title: Nanoscale Research Letters

Vol. 7

Final page: 280

ISSN: 1931-7573

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 30 Citations

Scopus - 32 Citations

Other information

Authenticus ID: P-002-9XS

DOI: 10.1186/1556-276x-7-280

Abstract (EN): High aspect ratio Ni nanowires (NWs) and nanotubes (NTs) were electrodeposited inside ordered arrays of self-assembled pores (approximately 50 nm in diameter and approximately 50 mu m in length) in anodic alumina templates by a potentiostatic method. The current transients monitored during each process allowed us to distinguish between NW and NT formation. The depositions were long enough for the deposited metal to reach the top of the template and form a continuous Ni film. The overfilling process was found to occur in two steps when depositing NWs and in a single step in the case of NTs. A comparative study of the morphological, structural, and magnetic properties of the Ni NWs and NTs was performed using scanning electron microscopy, X-ray diffraction, and vibrating sample magnetometry, respectively.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9