Publications

Self-supporting hierarchically organized silicon networks via magnesiothermic reduction

Author(s)
Michael Waitzinger, Michael S. Elsaesser, Raphael J. F. Berger, Johanna Akbarzadeh, Herwig Peterlik, Nicola Huesing
Abstract

Using a magnesiothermic reduction process, the successful conversion of hierarchically organized meso/macroporous silica monoliths to self-supporting macroporous silicon networks comprising interparticle mesoporosity has been demonstrated. By careful variation of reaction time and temperature, the final network structure can be controlled to a large degree. Scanning and transmission electron microscopy images indicate that the cellular silicon structure is built up from aggregated 1-15 nm sized crystalline silicon particles aggregated to struts that form macropores of approximately 2 μm diameter.

Organisation(s)
Dynamics of Condensed Systems
External organisation(s)
Paris-Lodron Universität Salzburg
Journal
Monatshefte für Chemie
Volume
147
Pages
269-278
No. of pages
10
ISSN
0026-9247
DOI
https://doi.org/10.1007/s00706-015-1611-8
Publication date
02-2016
Peer reviewed
Yes
Austrian Fields of Science 2012
104011 Materials chemistry, 103018 Materials physics
Keywords
ASJC Scopus subject areas
Chemistry(all)
Portal url
https://ucris.univie.ac.at/portal/en/publications/selfsupporting-hierarchically-organized-silicon-networks-via-magnesiothermic-reduction(7168dff9-af43-41d6-80d3-373586161a7b).html