The effect of barrier layer conditions on the electrodeposition efficiency and magnetic properties of Fe nanowire arrays
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Fabrication of different nanostructures based on template-assisted methods has become conventional, due to their numerous potential applications. In this paper, Fe nanowire arrays (NWAs) were fabricated using a pulsed electrodeposition in porous anodic alumina (PAA) templates. The effect of alumina barrier layer conditions such as barrier layer temperature (BLT) and Cu pre-plating at the dendritic sections of pores on the electrodeposition efficiency (EE) and magnetic properties of Fe NWAs in two pH regimes (2.6 and 4.0) has been investigated. At pH 4.0, BLT was changed from ~ 4 to ~ 32 °C, leading to an EE of approximately 60% for BLT ~ 24 °C. Moreover, to overcome the problem of low EE ~ 2% at the pH of 2.6, Cu pre-plating was performed with deposition current densities of 25 and 35 mA/cm2. This procedure increased the EE up to about 40%, providing a promising approach to enhance the EE in the fabrication of Fe NWAs. Furthermore, a nearly constant trend of magnetic properties was observed for highly crystalline Fe NWs.
Porous anodic alumina
Barrier layer temperature
Saturation magnetic moment
The authors would like to thank the University of Kashan for supporting this work by Grant no. 159023/32.
This study was funded by the University of Kashan (Grant no. 159023/32).
Compliance with Ethical Standards
By submitting the manuscript, the authors understand that the material presented in this manuscript has not been published before, nor has it been submitted for publication to another journal. The corresponding author attests that this study has been approved by all the co-authors concerned.
Conflict of interest
The authors declare that they have no conflict of interest.
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