Distinguishing nanowire and nanotube formation by the deposition current transients

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

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

Revista

Título: Nanoscale Research Letters

Vol. 7

Página Final: 280

ISSN: 1931-7573

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 30 Citações

Scopus - 32 Citações

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9