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Title: Homopolymers as nanocarriers for the loading of block copolymer micelles with metal salts: a facile way to large-scale ordered arrays of transition- metal nanoparticles
Authors: SHAN, Lianchen 
Van Bael, Margriet J.
Temst, Kristiaan
VAN BAEL, Marlies 
Ke, Xiaoxing
Bals, Sara
Van Tendeloo, Gustaaf
WAGNER, Patrick 
BOYEN, Hans-Gerd 
Issue Date: 2014
Source: Journal of Materials Chemistry C, 2, p. 701-707
Abstract: A new and facile approach is presented for generating quasi-regular patterns of transition metal-based nanoparticles on flat substrates exploiting polystyrene-block-poly2vinyl pyridine (PS-b-P2VP) micelles as intermediate templates. Direct loading of such micellar nanoreactors by polar transition metal salts in solution usually results in nanoparticle ensembles exhibiting only short range order accompanied by broad distributions of particle size and inter-particle distance. Here, we demonstrate that the use of P2VP homopolymers of appropriate length as molecular carriers to transport precursor salts into the micellar cores can significantly increase the degree of lateral order within the final nanoparticle arrays combined with a decrease in spreading in particle size. Thus, a significantly extended range of materials is now available which can be exploited to study fundamental properties at the transition from clusters to solids by means of well-organized, well-separated, size-selected metal and metal oxide nanostructures.
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ISSN: 2050-7526
e-ISSN: 2050-7534
DOI: 10.1039/c3tc31333f
ISI #: 000329069900015
Category: A1
Type: Journal Contribution
Validations: ecoom 2015
Appears in Collections:Research publications

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