Always cubes: A comparative evaluation of gas phase synthesis methods and precursor selection for the production of MgO nanoparticles

Thomas Schwab*, Matthias Niedermaier, Korbinian Aicher, Michael Elsässer, Gregor Zickler, Oliver Diwald*

*Korrespondierende/r Autor/in für diese Arbeit

Publikation: Beitrag in FachzeitschriftArtikelPeer-reviewed

Abstract

MgO nanocubes are well-suited for the study of defects and interfaces inside metal oxide powders and ceramics. We evaluated the synthesis of MgO nanocubes via flame spray pyrolysis (FSP) and compared the structural and spectroscopic particle properties with materials obtained by chemical vapor synthesis (CVS). Characterization of the as-synthesized and vacuum annealed powder samples revealed slightly larger particle sizes for the FSP material that is absolutely comparable to CVS powders in terms of the particles structural definition, morphology and crystallinity. Moreover, optical absorption and photoluminescence emission studies show fingerprints, which are characteristic of MgO nanocrystals with a high abundance of grain corners, kinks and edges. The opportunity to synthesize MgO nanoparticles of high structural definition via FSP at significantly larger production rates and lower costs compared to CVS carries great potential to upscale powder production to generate MgO based functional oxide nanocomposites for ceramics and catalysis.
OriginalspracheEnglisch
Aufsatznummer100104
Seitenumfang100104
FachzeitschriftOpen Ceramics
Jahrgang6
DOIs
PublikationsstatusVeröffentlicht - Jun 2021

Bibliographische Notiz

Funding Information:
T.S., M.N., K. A., G.Z. and O.D. gratefully acknowledge support from the Austrian Science Fund FWF for Project No. P-28797 . TEM measurements were carried out on a JEOL JEM F200 TEM, which was funded by Interreg Österreich-Bayern 2014–2020 (Project No. AB 29) - “n2m”, nano-to-macro in lightweight materials.

Funding Information:
T.S. M.N. K. A. G.Z. and O.D. gratefully acknowledge support from the Austrian Science Fund FWF for Project No. P-28797. TEM measurements were carried out on a JEOL JEM F200 TEM, which was funded by Interreg ?sterreich-Bayern 2014?2020 (Project No. AB 29) - ?n2m?, nano-to-macro in lightweight materials.

Schlagwörter

  • Magnesium oxide
  • Gas phase synthesis
  • Nanocrystals
  • Electron microscopy
  • Spectroscopy

Systematik der Wissenschaftszweige 2012

  • 210 Nanotechnologie
  • 104 Chemie
  • 107 Andere Naturwissenschaften

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