Use of Ionic Liquid in Fabrication, Characterization, and Processing of Anodic Porous Alumina

<p>Abstract</p> <p>Two different ionic liquids have been tested in the electrochemical fabrication of anodic porous alumina in an aqueous solution of oxalic acid. It was found that during galvanostatic anodization of the aluminum at a current density of 200 mA/cm<sup>2</su...

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Main Authors: Salerno Marco, Patra Niranjan, Cingolani Roberto
Format: Article
Language:English
Published: SpringerOpen 2009-01-01
Series:Nanoscale Research Letters
Subjects:
Online Access:http://dx.doi.org/10.1007/s11671-009-9337-3
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author Salerno Marco
Patra Niranjan
Cingolani Roberto
author_facet Salerno Marco
Patra Niranjan
Cingolani Roberto
author_sort Salerno Marco
collection DOAJ
description <p>Abstract</p> <p>Two different ionic liquids have been tested in the electrochemical fabrication of anodic porous alumina in an aqueous solution of oxalic acid. It was found that during galvanostatic anodization of the aluminum at a current density of 200 mA/cm<sup>2</sup>, addition of 0.5% relative volume concentration of 1-butyl-3-methylimidazolium tetrafluoborate resulted in a three-fold increase of the growth rate, as compared to the bare acidic solution with the same acid concentration. This ionic liquid was also used successfully for an assessment of the wettability of the outer surface of the alumina, by means of liquid contact angle measurements. The results have been discussed and interpreted with the aid of atomic force microscopy. The observed wetting property allowed to use the ionic liquid for protection of the pores during a test removal of the oxide barrier layer.</p>
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spelling doaj.art-f2ac9b5527534a6491ad79074c5887b42023-09-02T14:44:42ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2009-01-0148865872Use of Ionic Liquid in Fabrication, Characterization, and Processing of Anodic Porous AluminaSalerno MarcoPatra NiranjanCingolani Roberto<p>Abstract</p> <p>Two different ionic liquids have been tested in the electrochemical fabrication of anodic porous alumina in an aqueous solution of oxalic acid. It was found that during galvanostatic anodization of the aluminum at a current density of 200 mA/cm<sup>2</sup>, addition of 0.5% relative volume concentration of 1-butyl-3-methylimidazolium tetrafluoborate resulted in a three-fold increase of the growth rate, as compared to the bare acidic solution with the same acid concentration. This ionic liquid was also used successfully for an assessment of the wettability of the outer surface of the alumina, by means of liquid contact angle measurements. The results have been discussed and interpreted with the aid of atomic force microscopy. The observed wetting property allowed to use the ionic liquid for protection of the pores during a test removal of the oxide barrier layer.</p>http://dx.doi.org/10.1007/s11671-009-9337-3Porous aluminaAnodizationGalvanostaticIonic liquidsWettabilityRoughness
spellingShingle Salerno Marco
Patra Niranjan
Cingolani Roberto
Use of Ionic Liquid in Fabrication, Characterization, and Processing of Anodic Porous Alumina
Nanoscale Research Letters
Porous alumina
Anodization
Galvanostatic
Ionic liquids
Wettability
Roughness
title Use of Ionic Liquid in Fabrication, Characterization, and Processing of Anodic Porous Alumina
title_full Use of Ionic Liquid in Fabrication, Characterization, and Processing of Anodic Porous Alumina
title_fullStr Use of Ionic Liquid in Fabrication, Characterization, and Processing of Anodic Porous Alumina
title_full_unstemmed Use of Ionic Liquid in Fabrication, Characterization, and Processing of Anodic Porous Alumina
title_short Use of Ionic Liquid in Fabrication, Characterization, and Processing of Anodic Porous Alumina
title_sort use of ionic liquid in fabrication characterization and processing of anodic porous alumina
topic Porous alumina
Anodization
Galvanostatic
Ionic liquids
Wettability
Roughness
url http://dx.doi.org/10.1007/s11671-009-9337-3
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