Research output: Contribution to journal › Article › peer-review
Spray-Drying and Atomic Layer Deposition : Complementary Tools toward Fully Orthogonal Control of Bulk Composition and Surface Identity of Multifunctional Supraparticles. / Müssig, Stephan; Koch, Vanessa M.; Collados Cuadrado, Carlos; Bachmann, Julien; Thommes, Matthias; Barr, Maïssa K.S.; Mandel, Karl.
In: Small Methods, Vol. 6, No. 1, 2101296, 20.01.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Spray-Drying and Atomic Layer Deposition
T2 - Complementary Tools toward Fully Orthogonal Control of Bulk Composition and Surface Identity of Multifunctional Supraparticles
AU - Müssig, Stephan
AU - Koch, Vanessa M.
AU - Collados Cuadrado, Carlos
AU - Bachmann, Julien
AU - Thommes, Matthias
AU - Barr, Maïssa K.S.
AU - Mandel, Karl
N1 - Publisher Copyright: © 2021 The Authors. Small Methods published by Wiley-VCH GmbH
PY - 2022/1/20
Y1 - 2022/1/20
N2 - Spray-drying is a scalable process enabling one to assemble freely chosen nanoparticles into supraparticles. Atomic layer deposition (ALD) allows for controlled thin film deposition of a vast variety of materials including exotic ones that can hardly be synthesized by wet chemical methods. The properties of coated supraparticles are defined not only by the nanoparticle material chosen and the nanostructure adjusted during spray-drying but also by surface functionalities modified by ALD, if ALD is capable of modifying not only the outer surfaces but also surfaces buried inside the porous supraparticle. Simultaneously, surface accessibility in the porous supraparticles must be ensured to make use of all functionalized surfaces. In this work, iron oxide supraparticles are utilized as a model substrate as their magnetic properties enable the use of advanced magnetic characterization methods. Detailed information about the structural evolution upon individual ALD cycles of aluminium oxide, zinc oxide and titanium dioxide are thereby revealed and confirmed by gas sorption analyses. This demonstrates a powerful and versatile approach to freely designing the functionality of future materials by combination of spray-drying and ALD.
AB - Spray-drying is a scalable process enabling one to assemble freely chosen nanoparticles into supraparticles. Atomic layer deposition (ALD) allows for controlled thin film deposition of a vast variety of materials including exotic ones that can hardly be synthesized by wet chemical methods. The properties of coated supraparticles are defined not only by the nanoparticle material chosen and the nanostructure adjusted during spray-drying but also by surface functionalities modified by ALD, if ALD is capable of modifying not only the outer surfaces but also surfaces buried inside the porous supraparticle. Simultaneously, surface accessibility in the porous supraparticles must be ensured to make use of all functionalized surfaces. In this work, iron oxide supraparticles are utilized as a model substrate as their magnetic properties enable the use of advanced magnetic characterization methods. Detailed information about the structural evolution upon individual ALD cycles of aluminium oxide, zinc oxide and titanium dioxide are thereby revealed and confirmed by gas sorption analyses. This demonstrates a powerful and versatile approach to freely designing the functionality of future materials by combination of spray-drying and ALD.
KW - atomic layer deposition
KW - spray-drying
KW - supraparticles
KW - MAGNETIC-PROPERTIES
KW - PARTICLES
KW - NANOPARTICLES
KW - FUNCTIONALIZATION
KW - CLUSTERS
KW - NITROGEN
UR - http://www.scopus.com/inward/record.url?scp=85119477202&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/f7814ae7-10e5-3e7d-9271-7a0dae6f7ea9/
U2 - 10.1002/smtd.202101296
DO - 10.1002/smtd.202101296
M3 - Article
AN - SCOPUS:85119477202
VL - 6
JO - Small Methods
JF - Small Methods
SN - 2366-9608
IS - 1
M1 - 2101296
ER -
ID: 92165538