Facile fabrication of nanostructured alumina membranes

Voigt, Karsten D.; Heubner, Christian; Lämmel, C.; Schneider, Michael; Michaelis, Alexander

doi:10.1016/j.micromeso.2020.110207

Cited by 11 publications

(7 citation statements)

References 45 publications

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“…The average pore size was designed between approximately 40 nm (oxalic acid) and 200 nm (phosphoric acid). [ 125 ] Incidentally, the examples shown in Figure 12 show very nicely the light transparency and coloration.…”

Section: Pore Design—how Can We Tailor the Pore Structure?mentioning

confidence: 90%

Section: Pore Design—how Can We Tailor the Pore Structure?mentioning

confidence: 99%

“…[ 131 ] The examples shown here (Figure 12) originated from our own work at Fraunhofer IKTS Dresden. [ 125 ] The presented freestanding disks exemplarily represent alumina membranes which are prepared by anodizing in different electrolytes and are characterized by different pore sizes and size distributions. The average pore size was designed between approximately 40 nm (oxalic acid) and 200 nm (phosphoric acid).…”

Section: Pore Design—how Can We Tailor the Pore Structure?mentioning

confidence: 99%

“…Disks of alumina membranes produced by anodizing of technical pure aluminum in (a) oxalic acid (at 40 V), (b) malonic acid (at 120 V), and (c) phosphoric acid (at 165 V) baths. Reprinted with permission from Reference [125], Copyright 2020, Elsevier Ltd. [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Pore Design—how Can We Tailor the Pore Structure?mentioning

confidence: 99%

“…The semi‐continuous process route established at IKTS (Figure 13) is cost‐efficient, easily scalable, and allows the fabrication of different geometric shapes of such membranes in a thickness range between 0.1 and 600 µm. [ 132 ] Figure 13 demonstrates schematically the possible circular process to produce membranes in the desired manner with variability of shapes and the repeatability of the process using the source material.…”

Section: Pore Design—how Can We Tailor the Pore Structure?mentioning

confidence: 99%

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Anodizing—The pore makes the difference

Schneider

Fürbeth

2022

Materials & Corrosion

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The presentation gives an insight into the fascinating world of anodizing as corrosion protection but also goes far beyond. Starting with an introduction to the formation of anodic oxide films and their characteristic features, the authors briefly outline the subject of pore nucleation and growth. The number, size, and shape of the pores essentially determine the properties and play a crucial role in the final application of the anodizing layers. The tailoring of pore design, considering the final application as well as the use of the porous oxide layers for subsequent functional modifications, is demonstrated by examples, exclusively developed in the working groups of the respective authors or in joint research projects, which were in part professionally accompanied and supported by the German Corrosion Society GfKORR e.V.

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Section: Pore Design—how Can We Tailor the Pore Structure?mentioning

confidence: 90%

Section: Pore Design—how Can We Tailor the Pore Structure?mentioning

confidence: 99%

Section: Pore Design—how Can We Tailor the Pore Structure?mentioning

confidence: 99%