Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis

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dc.identifier.uri http://dx.doi.org/10.15488/4119
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/4153
dc.contributor.author Freytag, Axel ger
dc.contributor.author Günnemann, Carsten ger
dc.contributor.author Naskar, Suraj ger
dc.contributor.author Hamid, Saher ger
dc.contributor.author Lübkemann, Franziska ger
dc.contributor.author Bahnemann, Detlef W. ger
dc.contributor.author Bigall, Nadja C. ger
dc.date.accessioned 2018-12-06T14:28:38Z
dc.date.available 2018-12-06T14:28:38Z
dc.date.issued 2018
dc.identifier.citation Freytag, A. et al.: Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis. In: ACS Applied Nano Materials 1 (2018), S. 6123-6130. DOI: https://doi.org/10.1021/acsanm.8b01333 ger
dc.description.abstract In this article, we demonstrate the fabrication of tailored multicomponent cryoaerogels from colloidal nanoparticles via the cryogelation method. With this method, it is possible to control the amount of components very precisely. Furthermore, the microscopic distribution of the different nanoparticle components in the resulting monolithic structure is shown to be adjustable by simply mixing calculated amounts of colloidal nanoparticle solutions with a suitable surface charge. We focus on titania cryoaerogels due to their potential for optical applications and investigate the properties of synthesized titania-gold cryoaerogels in dependency of the composition. In addition, titania-platinum cryoaerogels were tested for photocatalytic applications such as hydrogen evolution and showed a significant increase in performance and stability compared to their respective colloidal solutions. While showing comparable results for hydrogen evolution with aerogels as reported in literature, the fabrication is much faster and less complex and therefore might enable future industrial application. ger
dc.language.iso eng ger
dc.publisher Washington D.C. : American Chemical Society
dc.relation.ispartofseries ACS Applied Nano Materials 1 (2018) ger
dc.rights ACS AuthorChoice License ger
dc.rights.uri https://pubs.acs.org/page/policy/authorchoice_termsofuse.html
dc.subject aerogel eng
dc.subject colloidal nanoparticles eng
dc.subject cryoaerogelation eng
dc.subject multicomponent eng
dc.subject photocatalytic hydrogen evolution eng
dc.subject.ddc 540 | Chemie ger
dc.title Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis ger
dc.type article ger
dc.type Text ger
dc.relation.doi 10.1021/acsanm.8b01333
dc.description.version publishedVersion ger


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