Accessibility navigation

Tuning ordered pattern of Pd species through controlled block copolymer self-assembly

De Rosa, C., Auriemma, F., Malafronte, A., Di Girolamo, R., Lazzari, M., Nieto-Suarez, M., Hermida-Merino, D., Hamley, I. W. ORCID: and Portale, G. (2016) Tuning ordered pattern of Pd species through controlled block copolymer self-assembly. Journal of Physical Chemistry B, 120 (27). pp. 6829-6841. ISSN 1520-5207

Text - Accepted Version
· Please see our End User Agreement before downloading.


It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1021/acs.jpcb.6b04380


We report a method for the preparation of ordered patterns of Pd species on a substrate based on the use of polystyrene-block-poly(ethylene oxide) copolymer (PS-b-PEO) templates and selective inclusion of palladium (Pd) species in the PEO domains. PS-b-PEO samples of different total molecular masses self-assemble in a cylindrical microphase-separated morphology, in which vertically aligned PEO cylinders, with different diameters depending on the molecular mass, are organized in a hexagonal array of different lateral spacings. The cylindrical nanostructure is maintained after the selective inclusion of Pd species (Pd acetate and Pd nanoparticles (NPs) after reduction of Pd ions of the salt) in the PEO cylinders so that the characteristic sizes (diameters and lateral spacings) of the included Pd species are tuned by the characteristic sizes of the block copolymer (BCP) template, which are regulated by molecular mass. Treatment of nanocomposites at elevated temperatures in air removes the polymer matrix and leads to the formation of arrays of palladium oxide (PdO) NPs covering a solid support. The patterns of PdO NPs are characterized by different particle diameters and gap distances, mirroring the patterns and characteristic nanodimensions of the parent BCPs used as templates.

Item Type:Article
Divisions:Interdisciplinary centres and themes > Chemical Analysis Facility (CAF)
Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:66600
Publisher:American Chemical Society


Downloads per month over past year

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation