la2038334_si_001.pdf (262.45 kB)
Synthesis of Au-Based Porous Magnetic Spheres by Selective Laser Heating in Liquid
journal contribution
posted on 2012-03-20, 00:00 authored by Zaneta Swiatkowska-Warkocka, Kenji Kawaguchi, Yoshiki Shimizu, Alexander Pyatenko, Hongqiang Wang, Naoto KoshizakiWe report the synthesis of Au-based submicrometer-sized
spherical
particles with uniform morphology/size and integrated porosity-magnetic
property in a single particles. The particles are synthesized by a
two-step process: (a) selective pulsed laser heating of colloidal
nanoparticles to form particles with Au-rich core and Fe-rich shell
and (b) acid treatment which leads to formation of porous architecture
on particle surface. The simple, fast, inexpensive technique that
is proposed demonstrates very promising perspectives for synthesis
of composite particles.