Methods of Measuring the Depth of Nanoholes in Metallic Aluminum in the Process of High-Voltage Anodizing

Two alternative approaches to measuring the depth of nanoholes (nanopits) formed in metallic aluminum in the process of its high-voltage anodizing are proposed. The first approach consists of the electron microscopic study of a metallic layer section formed by cutting ions with the use of a sputtere...

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Bibliographic Details
Published inMoscow University chemistry bulletin Vol. 76; no. 6; pp. 388 - 393
Main Authors Ryabkov, E. D., Antropov, A. P., Zaitsev, N. K., Yashtulov, N. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.11.2021
Springer Nature B.V
Subjects
Aluminum
Anodizing
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Copper
High voltages
Measurement methods
scanning electron microscopy
voltammetry
copper nanostructures
aluminum anodizing
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Summary:Two alternative approaches to measuring the depth of nanoholes (nanopits) formed in metallic aluminum in the process of its high-voltage anodizing are proposed. The first approach consists of the electron microscopic study of a metallic layer section formed by cutting ions with the use of a sputtered protective platinum layer with immediate observation of an array of nanopits. The second (indirect) method consists of manufacturing copper replicas from a metallic aluminum layer with the further electrochemical measurement of the overall surface area of the copper electrode and the calculation of the height of the copper nanobristles. It is shown that both approaches lead to the same results.
ISSN:0027-1314
1935-0260
DOI:10.3103/S0027131421060080