scholarly journals Quantitative characterization of acid concentration and temperature dependent self-ordering conditions of anodic porous alumina

AIP Advances ◽  
2011 ◽  
Vol 1 (4) ◽  
pp. 042113 ◽  
Author(s):  
Chuan Cheng ◽  
K. Y. Ng ◽  
A. H. W. Ngan
Keyword(s):  
Acid Concentration ◽  
Porous Alumina ◽  
Temperature Dependent ◽  
Quantitative Characterization ◽  
Anodic Porous Alumina

Growth and characterization of high density stoichiometric SiO2dot arrays on Si through an anodic porous alumina template

2006 ◽  
Vol 17 (9) ◽  
pp. 2146-2151 ◽  
Author(s):  
M Kokonou ◽  
A G Nassiopoulou ◽  
K P Giannakopoulos ◽  
A Travlos ◽  
T Stoica ◽  
...  
Keyword(s):  
Porous Alumina ◽  
High Density ◽  
Alumina Template ◽  
Porous Alumina Template ◽  
Anodic Porous Alumina ◽  
Anodic Porous Alumina Template

Fabrication and Characterization of Highly Ordered Porous Alumina Templates by a Two-Step Anodization Process

2013 ◽  
Vol 755 ◽  
pp. 75-81
Author(s):  
C.A. León-Patiño ◽  
E.A. Aguilar-Reyes ◽  
C. Ruiz-Aguilar
Keyword(s):  
Porous Alumina ◽  
Porous Membrane ◽  
Interpore Distance ◽  
Alumina Membranes ◽  
Single Side ◽  
Anodic Porous Alumina ◽  
20 Nm ◽  
Ordered Porous ◽  
Through Hole

Highly ordered through-hole anodic porous alumina membranes were fabricated by electrochemical oxidation of aluminum in a controlled two-step process. A teflon dispositive was used to ensure single side anodization. Under the most appropriate condition for the fabrication of ideally ordered anodic aluminum oxide (AAO), the voltage used was 15 V during 24 h in a 15 % w/v sulfuric acid solution. SEM, TEM and FESEM characterization shows that the as-fabricated AAO film has a defect-free array of straight parallel channels perpendicular to the surface. The thickness of the porous membrane is 20 microns, approximately. The ordered channels are formed in a honey comb arrange with a pore diameter in the range 20-30 nm, wall thickness of 10-20 nm, interpore distance of 40 nm, and high aspect ratio of 850. The pore density, quantified by image analysis, is 5.4×1010 pore/cm2; perfect ordering was maintained in the full depth of the membrane. Dimensions of this porous structure provide a convenient way to precision engineer the nanoscale morphology.

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