Microstructure of nanopores in AAO templates favoring the growth of nickel nanowires by electrodeposition

Jeong, Jonghyun; Kim, Sun-Hong; Choi, Yong; Kim, Sung‐Soo

doi:10.1002/pssc.200777376

Cited by 10 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[4][5][6][7][8] The possibility to tune the pore diameter, interpore-distance, and pore channel lengths in the anodized alumina means a high flexibility in tailoring the dimensions of the nanosized features. [9][10][11][12] Another attractive feature of such anodic aluminium oxide (AAO) pores is that they can be grown into highly ordered arrays. Pre-treatment procedures and conditions for growing such arrays are well-published, with very stringent experimental conditions needed for obtaining such regularly-aligned pores.…”

Section: Introductionmentioning

confidence: 99%

Large-Area Anodized Alumina Nanopore Arrays Assisted by Soft Ultraviolet Nanoimprint Prepatterning

Wong²,

Lau³

et al. 2012

j nanosci nanotechnol

View full text Add to dashboard Cite

Aluminium anodization under optimized conditions can naturally generate close-packed and aligned nanopore arrays, but the spatial extent of such regular pore arrangement is generally limited. Here we demonstrated the use of soft ultraviolet nanoimprint lithography to guide the formation of nanopores at specific locations, using an elastomer negative mold for the process. By anodizing at voltages which naturally led to the formation of pores with matching averaged interpore separation, pre-patterned triangular holes (diameter 100 nm, periodicity 350 nm) on aluminium thin films induced conformal growth of nanopores at pre-defined positions. In addition, pores in geometries other than close-packed patterns were prepared, with square pore arrangement being demonstrated in this work. The influence of the anodization voltage on the final pore formation was also studied. Our results illustrated the possibility to fabricate well-organized nanopore arrays with conditions far less stringent than those reported in literature, which has the potential to be adopted for applications where regular pore alignment are critical.

show abstract

Section: Introductionmentioning

confidence: 99%

Large-Area Anodized Alumina Nanopore Arrays Assisted by Soft Ultraviolet Nanoimprint Prepatterning

Wong²,

Lau³

et al. 2012

j nanosci nanotechnol

View full text Add to dashboard Cite

show abstract

“…3 Electrodeposition of nickel from aqueous solution has been successfully demonstrated for nickel composites, 4 amorphous nickel, 5 nickel nanorods and nanowires 6 and attempts have been made to unveil the mechanism of nucleation 7,8 and growth of electrodeposited nickel. [9][10][11][12][13][14] There has also been a surge of interest in the electrodeposition of nickel and its alloys with tungsten, tin, iron and aluminum. [15][16][17][18] Electrodeposition of nickel from aqueous solution so far suffered from few drawbacks which include: passivation of nickel, bulk deposition, limited potential window, and hydrogen embrittlement.…”

mentioning

confidence: 99%

Electrodeposition of Nickel from Reverse Micellar Solutions of Cetyltrimethylammonium Bromide

Sultana

Saha

Islam

et al. 2013

J. Electrochem. Soc.

View full text Add to dashboard Cite

Electrochemical behavior of nickel chloride was investigated in aqueous and reverse micellar solutions of a cationic surfactant, cetyltrimethylammonium bromide (CTAB) on glassy carbon (GC) and copper electrodes by cyclic voltammetric measurements. The electrochemical reduction of nickel ion to metallic nickel has been found to occur with ease on a copper electrode in aqueous solution. Electrodeposition of nickel on a copper substrate was therefore performed from reverse micellar solutions of CTAB/1butanol/water with different water content using coulometric method at a fixed potential below the reduction potential. Morphology and microstructure of the deposits were examined by scanning electron microscopy; while elemental characterization was carried out by energy dispersive X-ray spectroscopic method and X-ray diffraction technique. The variation in the composition of the reverse micellar solutions brings about changes in the size and distribution of reverse micelles as revealed by dynamic light scattering measurements and consequently influences the morphology of electrodeposited nickel. The mechanism of electrodepostion of nickel from reverse micellar solutions has been elucidated and the organized media have, for the first time, been established as a suitable one for electrodeposition of nickel with tunable microstructure and morphology through systematic variation of the composition of the reverse micellar solutions.

show abstract

Pulse electrodeposition of adherent nickel coatings onto anodized aluminium surfaces

Frantz

Vichery

Zechner

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

Microstructure of nanopores in AAO templates favoring the growth of nickel nanowires by electrodeposition

Cited by 10 publications

References 8 publications

Large-Area Anodized Alumina Nanopore Arrays Assisted by Soft Ultraviolet Nanoimprint Prepatterning

Large-Area Anodized Alumina Nanopore Arrays Assisted by Soft Ultraviolet Nanoimprint Prepatterning

Electrodeposition of Nickel from Reverse Micellar Solutions of Cetyltrimethylammonium Bromide

Pulse electrodeposition of adherent nickel coatings onto anodized aluminium surfaces

Contact Info

Product

Resources

About