Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices
We describe the synthesis of mesoporous Al2O3 and MgO layers on silicon wafer substrates by using poly(dimethylacrylamide) hydrogels as porogenic matrices. Hydrogel films are prepared by spreading the polymer through spin-coating, followed by photo-cross-linking and anchoring to the substrate surfac...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-03-01
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| Series: | Nanomaterials |
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| Online Access: | http://www.mdpi.com/2079-4991/8/4/186 |
| _version_ | 1817971032500207616 |
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| author | Zimei Chen Dirk Kuckling Michael Tiemann |
| author_facet | Zimei Chen Dirk Kuckling Michael Tiemann |
| author_sort | Zimei Chen |
| collection | DOAJ |
| description | We describe the synthesis of mesoporous Al2O3 and MgO layers on silicon wafer substrates by using poly(dimethylacrylamide) hydrogels as porogenic matrices. Hydrogel films are prepared by spreading the polymer through spin-coating, followed by photo-cross-linking and anchoring to the substrate surface. The metal oxides are obtained by swelling the hydrogels in the respective metal nitrate solutions and subsequent thermal conversion. Combustion of the hydrogel results in mesoporous metal oxide layers with thicknesses in the μm range and high specific surface areas up to 558 m2∙g−1. Materials are characterized by SEM, FIB ablation, EDX, and Kr physisorption porosimetry. |
| first_indexed | 2024-04-13T20:41:39Z |
| format | Article |
| id | doaj.art-4c3ab8efcbe045d0b66852ee95e70975 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-04-13T20:41:39Z |
| publishDate | 2018-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-4c3ab8efcbe045d0b66852ee95e709752022-12-22T02:30:51ZengMDPI AGNanomaterials2079-49912018-03-018418610.3390/nano8040186nano8040186Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure MatricesZimei Chen0Dirk Kuckling1Michael Tiemann2Department of Chemistry—Organic and Macromolecular Chemistry, Paderborn University, 33098 Paderborn, GermanyDepartment of Chemistry—Organic and Macromolecular Chemistry, Paderborn University, 33098 Paderborn, GermanyDepartment of Chemistry—Inorganic Functional Materials, Paderborn University, 33098 Paderborn, GermanyWe describe the synthesis of mesoporous Al2O3 and MgO layers on silicon wafer substrates by using poly(dimethylacrylamide) hydrogels as porogenic matrices. Hydrogel films are prepared by spreading the polymer through spin-coating, followed by photo-cross-linking and anchoring to the substrate surface. The metal oxides are obtained by swelling the hydrogels in the respective metal nitrate solutions and subsequent thermal conversion. Combustion of the hydrogel results in mesoporous metal oxide layers with thicknesses in the μm range and high specific surface areas up to 558 m2∙g−1. Materials are characterized by SEM, FIB ablation, EDX, and Kr physisorption porosimetry.http://www.mdpi.com/2079-4991/8/4/186mesoporousAl2O3MgOpoly(dimethylacrylamide)hydrogelthin filmspin coatingSEMFIBKr physisorption |
| spellingShingle | Zimei Chen Dirk Kuckling Michael Tiemann Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices Nanomaterials mesoporous Al2O3 MgO poly(dimethylacrylamide) hydrogel thin film spin coating SEM FIB Kr physisorption |
| title | Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices |
| title_full | Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices |
| title_fullStr | Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices |
| title_full_unstemmed | Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices |
| title_short | Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices |
| title_sort | porous aluminum oxide and magnesium oxide films using organic hydrogels as structure matrices |
| topic | mesoporous Al2O3 MgO poly(dimethylacrylamide) hydrogel thin film spin coating SEM FIB Kr physisorption |
| url | http://www.mdpi.com/2079-4991/8/4/186 |
| work_keys_str_mv | AT zimeichen porousaluminumoxideandmagnesiumoxidefilmsusingorganichydrogelsasstructurematrices AT dirkkuckling porousaluminumoxideandmagnesiumoxidefilmsusingorganichydrogelsasstructurematrices AT michaeltiemann porousaluminumoxideandmagnesiumoxidefilmsusingorganichydrogelsasstructurematrices |