--- _id: '23854' abstract: - lang: eng text: Micropatterned nanoporous aluminum oxide arrays are prepared on silicon wafer substrates by using photopolymerized poly(dimethylacrylamide) hydrogels as porogenic matrices. Hydrogel micropatterns are fabricated by spreading the prepolymer mixture on the substrate, followed by UV photopolymerization through a micropatterned mask. The hydrogel is covalently bonded to the substrate surface. Al2O3 is produced by swelling the hydrogel in a saturated aluminum nitrate solution and subsequent thermal conversion/calcination. As a result, micropatterned porous Al2O3 microdots with heights in µm range and large specific surface areas up to 274 m2 g−1 are obtained. Hence, the hydrogel fulfills a dual templating function, namely micropatterning and nanoporosity generation. The impact of varying the photopolymerization time on the properties of the products is studied. Samples are characterized by light and confocal laser scanning microscopy, scanning electron microscopy, energy-dispersive x-ray spectrometry, and Kr physisorption analysis. article_number: '445601' article_type: original author: - first_name: Zimei full_name: Chen, Zimei last_name: Chen - first_name: Dirk full_name: Kuckling, Dirk id: '287' last_name: Kuckling - first_name: Michael full_name: Tiemann, Michael id: '23547' last_name: Tiemann orcid: 0000-0003-1711-2722 citation: ama: Chen Z, Kuckling D, Tiemann M. Nanoporous aluminum oxide micropatterns prepared by hydrogel templating. Nanotechnology. 2020;31. doi:10.1088/1361-6528/aba710 apa: Chen, Z., Kuckling, D., & Tiemann, M. (2020). Nanoporous aluminum oxide micropatterns prepared by hydrogel templating. Nanotechnology, 31, Article 445601. https://doi.org/10.1088/1361-6528/aba710 bibtex: '@article{Chen_Kuckling_Tiemann_2020, title={Nanoporous aluminum oxide micropatterns prepared by hydrogel templating}, volume={31}, DOI={10.1088/1361-6528/aba710}, number={445601}, journal={Nanotechnology}, publisher={IOP Publishing}, author={Chen, Zimei and Kuckling, Dirk and Tiemann, Michael}, year={2020} }' chicago: Chen, Zimei, Dirk Kuckling, and Michael Tiemann. “Nanoporous Aluminum Oxide Micropatterns Prepared by Hydrogel Templating.” Nanotechnology 31 (2020). https://doi.org/10.1088/1361-6528/aba710. ieee: 'Z. Chen, D. Kuckling, and M. Tiemann, “Nanoporous aluminum oxide micropatterns prepared by hydrogel templating,” Nanotechnology, vol. 31, Art. no. 445601, 2020, doi: 10.1088/1361-6528/aba710.' mla: Chen, Zimei, et al. “Nanoporous Aluminum Oxide Micropatterns Prepared by Hydrogel Templating.” Nanotechnology, vol. 31, 445601, IOP Publishing, 2020, doi:10.1088/1361-6528/aba710. short: Z. Chen, D. Kuckling, M. Tiemann, Nanotechnology 31 (2020). date_created: 2021-09-07T10:23:25Z date_updated: 2023-03-08T08:26:12Z department: - _id: '311' - _id: '35' - _id: '307' - _id: '2' doi: 10.1088/1361-6528/aba710 intvolume: ' 31' language: - iso: eng main_file_link: - open_access: '1' url: https://iopscience.iop.org/article/10.1088/1361-6528/aba710/pdf oa: '1' publication: Nanotechnology publication_identifier: issn: - 0957-4484 - 1361-6528 publication_status: published publisher: IOP Publishing quality_controlled: '1' status: public title: Nanoporous aluminum oxide micropatterns prepared by hydrogel templating type: journal_article user_id: '23547' volume: 31 year: '2020' ...