Academic Journal
Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis
| العنوان: | Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis |
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| المؤلفون: | Freytag, Axel, Günnemann, Carsten, Naskar, Suraj, Hamid, Saher, Lübkemann, Franziska, Bahnemann, Detlef W., Bigall, Nadja C. |
| المصدر: | ACS Applied Nano Materials 1 (2018) |
| بيانات النشر: | American Chemical Society |
| سنة النشر: | 2018 |
| المجموعة: | Institutional Repository of Leibniz Universität Hannover |
| مصطلحات موضوعية: | aerogel, colloidal nanoparticles, cryoaerogelation, multicomponent, photocatalytic hydrogen evolution, ddc:540 |
| الوصف: | 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. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | http://dx.doi.org/10.15488/4119; https://www.repo.uni-hannover.de/handle/123456789/4153 |
| DOI: | 10.15488/4119 |
| الاتاحة: | https://www.repo.uni-hannover.de/handle/123456789/4153 https://doi.org/10.15488/4119 |
| Rights: | ACS AuthorChoice License ; https://pubs.acs.org/page/policy/authorchoice_termsofuse.html ; frei zugänglich |
| رقم الانضمام: | edsbas.67F083AE |
| قاعدة البيانات: | BASE |
| DOI: | 10.15488/4119 |
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