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Hydrogels as Porogens for Nanoporous Inorganic Materials

Department of Chemistry—Inorganic Functional Materials, Paderborn University, 33098 Paderborn, Germany
Department of Chemistry—Organic and Macromolecular Chemistry, Paderborn University, 33098 Paderborn, Germany
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Received: 11 September 2018 / Revised: 1 October 2018 / Accepted: 9 October 2018 / Published: 10 October 2018
(This article belongs to the Special Issue Challenges for Gel Materials in the 21st Century)
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Organic polymer-hydrogels are known to be capable of directing the nucleation and growth of inorganic materials, such as silica, metal oxides, apatite or metal chalcogenides. This approach can be exploited in the synthesis of materials that exhibit defined nanoporosity. When the organic polymer-based hydrogel is incorporated in the inorganic product, a composite is formed from which the organic component may be selectively removed, yielding nanopores in the inorganic product. Such porogenic impact resembles the concept of using soft or hard templates for porous materials. This micro-review provides a survey of select examples from the literature. View Full-Text
Keywords: nanoporous; mesoporous; metal oxide; silica; hydrogel; thin film; porogen; template; nanocasting nanoporous; mesoporous; metal oxide; silica; hydrogel; thin film; porogen; template; nanocasting

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Weinberger, C.; Kuckling, D.; Tiemann, M. Hydrogels as Porogens for Nanoporous Inorganic Materials. Gels 2018, 4, 83.

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