Engineered Au Core@Prussian Blue Analogous Shell Nanoheterostructures: Their Magnetic and Optical Properties
authors Maurin-Pasturel, G; Long, J; Palacios, MA; Guerin, C; Charnay, C; Willinger, MG; Trifonov, AA; Larionova, J; Guari, Y
nationality International
journal CHEMISTRY-A EUROPEAN JOURNAL
author keywords core-shell structures; magnetic properties; nanoheterostructures; Prussian blue; surface plasmon resonance
keywords METAL-ORGANIC FRAMEWORKS; COATED GOLD NANOPARTICLES; COORDINATION POLYMER CRYSTALS; PHOTOINDUCED MAGNETISM; HYDROGEN-PEROXIDE; GENERAL-APPROACH; HETEROSTRUCTURES; NANOCRYSTALS; GROWTH; NANOSTRUCTURES
abstract We report a new approach for the synthesis of multifunctional Au core@Prussian Blue analogous (PBA) shell nanoheterostructures that involves PBA shell growth on the surface of cyanide-stabilized gold nanoparticles. It permits the assembly of Au@KNiII[FeII(CN)(6)] core@shell and Au@KNiII[Fe-II(CN)(6)]@KNiII[Cr-III(CN)(6)] core@shell@shell heterostructures with well-defined and size-controlled gold cores and PBA shells. These heterostructures exhibit tunable size- and shape-dependent magnetic and optical properties: (i) the surface plasmon resonance band position and intensity mainly depend on the PBA shell thickness, and (ii) the magnetic properties (the transition temperature, the coercivity, and magnetic regime) depend in a complex manner on the thickness as well as the particular morphology of the magnetic shell.
publisher WILEY-V C H VERLAG GMBH
issn 0947-6539
year published 2017
volume 23
issue 31
beginning page 7483
ending page 7496
digital object identifier (doi) 10.1002/chem.201605903
web of science category Chemistry, Multidisciplinary
subject category Chemistry
unique article identifier WOS:000402648500017
link http://onlinelibrary.wiley.com/doi/10.1002/chem.201605903/full
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