Synthesis of various 3D porous gold-based alloy nanostructures with branched shapes.
This paper presents a facile and flexible synthesis platform for various 3D porous gold-iron nanostructures based on selective laser heating of colloidal nanoparticles and selective acid treatment. The presented approach allows to create porous gold-based nanostructures with different morphologies. In addition, for the first time, our studies indicate that various nanoarchitectures (brain-like, flower-like, cage-like, or raspberry-like structures) can be obtained by varying the experimental conditions such as size of Au and Fe3O4 nanoparticles, solvent, laser fluence, and irradiation time. We believe that these porous structures will find immediate applications in catalysis and separations, where high surface area and magnetic properties are often simultaneously required.
['Swiatkowska-Warkocka|Zaneta|Z|', 'Pyatenko|Alexander|A|', 'Koshizaki|Naoto|N|', 'Kawaguchi|Kenji|K|']
Porous Magnetic properties 3D structures Gold nanostructures Pulsed laser irradiation