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Deposition of Thin Alumina Films Containing 3D Ordered Network of Nanopores on Porous Substrates

Tkalčević, Marija; Gotić, Marijan; Basioli, Lovro; Lihter, Martina; Dražič, Goran; Bernstorff, Sigrid; Vuletić, Tomislav; Mičetić, Maja (2020) Deposition of Thin Alumina Films Containing 3D Ordered Network of Nanopores on Porous Substrates. Materials, 13 (13). ISSN 1996-1944

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Self-supporting thin films containing nanopores are very promising materials for use for multiple applications, especially in nanofiltration. Here, we present a method for the production of nanomembranes containing a 3D ordered network of nanopores in an alumina matrix, with a diameter of about 1 nm and a body centered tetragonal structure of the network nodes. The material is produced by the magnetron sputtering deposition of a 3D ordered network of Ge nanowires in an alumina matrix, followed by a specific annealing process resulting in the evaporation of Ge. We demonstrate that the films can be easily grown on commercially available alumina substrates containing larger pores with diameters between 20 and 400 nm. We have determined the minimal film thickness needed to entirely cover the larger pores. We believe that these films have the potential for applications in the fields of filtration, separation and sensing

Item Type: Article
Additional Information: This research was funded by the Croatian Science Foundation (No. IP-2018-01-3633) and the Center of Excellence for Advanced Materials and Sensing Devices (Grant KK. This work was supported by the CalipsoPlus project (pr. no 20177127). M.L. and T.V. acknowledge the Unity through Knowledge Fund, Croatia grant no. 17/13.
Uncontrolled Keywords: nanoporous ; microporous ; alumina ; 3D network of nanopores ; membrane
Subjects: NATURAL SCIENCES > Physics
Divisions: Division of Materials Physics
Project titleProject leaderProject codeProject type
3D mreže kompleksnih Ge-baziranih nanostruktura u staklima: svojstva i primjene-NetNanoMaja MičetićIP-2018-01-3633HRZZ
Depositing User: Marija Tkalčević
Date Deposited: 24 Sep 2020 07:42
DOI: 10.3390/ma13132883

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