title: Magnetically-driven selective synthesis of Au clusters on Fe3O4 nanoparticles.
abstract: A novel procedure to direct the local synthesis of gold clusters on Fe(3)O(4) nanocrystals by means of alternating magnetic fields (AMFs) is demonstrated. This process allows growing gold selectively onto the heated magnetite surface, while keeping the synthesis solution comparatively cold. Sequential AMF cycles allowed fine-tuning the amount of gold on the magnetite surfaces.
authors.affiliation: Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain. victorse@unizar.es
authors.forename: Víctor
authors.initials: V
authors.lastname: Sebastian
authors.forename: M Pilar
authors.initials: MP
authors.lastname: Calatayud
authors.forename: Gerardo F
authors.initials: GF
authors.lastname: Goya
authors.forename: Jesus
authors.initials: J
authors.lastname: Santamaria
mesh_terms: D052203:Ferrosoferric Oxide / Q000737:chemistry*; D006046:Gold / Q000737:chemistry; D008280:Magnetics; D053758:Nanoparticles / Q000737:chemistry
chemical_list: D006046:Gold; D052203:Ferrosoferric Oxide