Controlling Oriented Attachment of Gold Nanoparticles by Size and Shape

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SCHUPP, David J., Jonathan ANGST, Eva A. SCHAEFER, Stefan M. SCHUPP, Helmut CÖLFEN, 2021. Controlling Oriented Attachment of Gold Nanoparticles by Size and Shape. In: The Journal of Physical Chemistry C. American Chemical Society (ACS). 125(37), pp. 20343-20350. ISSN 1932-7447. eISSN 1932-7455. Available under: doi: 10.1021/acs.jpcc.1c05937

@article{Schupp2021Contr-55244, title={Controlling Oriented Attachment of Gold Nanoparticles by Size and Shape}, year={2021}, doi={10.1021/acs.jpcc.1c05937}, number={37}, volume={125}, issn={1932-7447}, journal={The Journal of Physical Chemistry C}, pages={20343--20350}, author={Schupp, David J. and Angst, Jonathan and Schaefer, Eva A. and Schupp, Stefan M. and Cölfen, Helmut} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dc:contributor>Schupp, Stefan M.</dc:contributor> <dc:date rdf:datatype="">2021-10-14T06:56:30Z</dc:date> <dc:contributor>Schaefer, Eva A.</dc:contributor> <dc:language>eng</dc:language> <dc:creator>Schaefer, Eva A.</dc:creator> <dc:creator>Cölfen, Helmut</dc:creator> <dc:creator>Schupp, Stefan M.</dc:creator> <dspace:isPartOfCollection rdf:resource=""/> <dcterms:title>Controlling Oriented Attachment of Gold Nanoparticles by Size and Shape</dcterms:title> <dc:contributor>Angst, Jonathan</dc:contributor> <dcterms:issued>2021</dcterms:issued> <dc:creator>Angst, Jonathan</dc:creator> <dc:contributor>Cölfen, Helmut</dc:contributor> <bibo:uri rdf:resource=""/> <dcterms:abstract xml:lang="eng">The concept of nanoparticles (NPs) as building blocks offers new possibilities to produce complex and tailored structures from the nano- to the mesoscale. In order to control a “polymerization” of particles, knowledge of the mechanism and kinetics of the reaction are necessary. We show that controlled assembly of cetylpyridinium chloride-stabilized gold NPs utilizing induced dipole–dipole interactions can lead to the formation of defined one-dimensional structures in solution. Three different shaped NPs (cubes, octahedra, and truncated cuboctahedra) were investigated individually. The assembly process is analogous to a step growth polymerization and is quantitatively describable with kinetics of a polyesterification. In situ kinetic studies reveal that there is an ideal particle size and shape for the induced dipole-driven assembly. Even small changes in size have remarkable effects on the assembly behavior. We further demonstrate that the transition from oriented assembly to oriented attachment requires a critical particle size (critical interface area) resulting from a size-dependent energy barrier for the crystallographic fusion. A combination of ideal size, shape, and degree of destabilization enables controlled oriented attachment of gold NPs in solution to chainlike structures under ambient conditions.</dcterms:abstract> <dcterms:available rdf:datatype="">2021-10-14T06:56:30Z</dcterms:available> <dc:creator>Schupp, David J.</dc:creator> <dc:contributor>Schupp, David J.</dc:contributor> <dcterms:isPartOf rdf:resource=""/> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:isPartOf rdf:resource=""/> <dspace:isPartOfCollection rdf:resource=""/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> </rdf:Description> </rdf:RDF>

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