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

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Axel Freytag
  • Carsten Günnemann
  • Suraj Naskar
  • Saher Hamid
  • Franziska Lübkemann
  • Detlef Bahnemann
  • Nadja C. Bigall

External Research Organisations

  • Saint Petersburg State University
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Details

Original languageEnglish
Pages (from-to)6123-6130
Number of pages8
JournalACS Applied Nano Materials
Volume1
Issue number11
Early online date26 Oct 2018
Publication statusPublished - 26 Nov 2018

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.

Keywords

    aerogel, colloidal nanoparticles, cryoaerogelation, multicomponent, photocatalytic hydrogen evolution

ASJC Scopus subject areas

Cite this

Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis. / Freytag, Axel; Günnemann, Carsten; Naskar, Suraj et al.
In: ACS Applied Nano Materials, Vol. 1, No. 11, 26.11.2018, p. 6123-6130.

Research output: Contribution to journalArticleResearchpeer review

Freytag, A, Günnemann, C, Naskar, S, Hamid, S, Lübkemann, F, Bahnemann, D & Bigall, NC 2018, 'Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis', ACS Applied Nano Materials, vol. 1, no. 11, pp. 6123-6130. https://doi.org/10.1021/acsanm.8b01333, https://doi.org/10.15488/4119
Freytag, A., Günnemann, C., Naskar, S., Hamid, S., Lübkemann, F., Bahnemann, D., & Bigall, N. C. (2018). Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis. ACS Applied Nano Materials, 1(11), 6123-6130. https://doi.org/10.1021/acsanm.8b01333, https://doi.org/10.15488/4119
Freytag A, Günnemann C, Naskar S, Hamid S, Lübkemann F, Bahnemann D et al. Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis. ACS Applied Nano Materials. 2018 Nov 26;1(11):6123-6130. Epub 2018 Oct 26. doi: 10.1021/acsanm.8b01333, 10.15488/4119
Freytag, Axel ; Günnemann, Carsten ; Naskar, Suraj et al. / Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis. In: ACS Applied Nano Materials. 2018 ; Vol. 1, No. 11. pp. 6123-6130.
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