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SUMMARY:Synthesis of composite nanoparticles by coating magnetic spinel fe
 rrite onto different core nanoparticles
DTSTART:20130704T161500
DTSTAMP:20260920T161031Z
UID:34769c3a3d30d3de4642e395e807f20a277eb98cada2321729281fdb
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Darko Makovec\, Jožef Stefan Institute\, Ljubljana\, Sl
 ovenia\nBio: Scientific and Professional career:\n1988 - 2002  Ceramics D
 epartment\, “Jožef Stefan” Institute\n2002 -     Advanced Materia
 ls Department\, “Jožef Stefan” Institute\nPosition: Scientific associ
 ate\nResearch Stay Abroad:\n1.11.1995 – 30.11.1995  Institute for Inorg
 anic Chemistry\, University of Bonn\, Germany.\n16.9.2001 – 16.6.2002  
 Senior Fulbright scholar at Department of Materials Research and Engineeri
 ng\, University of Illinois at Urbana-Champaign\, USA.\nAcademic engagemen
 ts:\n2003 -  associated professor at Faculty for Chemistry and Chemical T
 echnology\, University of Maribor\, Slovenia.\nField of reserach:\nmateria
 l science\, solid-state chemistry\, high-temperature chemistry\, functiona
 l ceramics\, semiconducting ceramics (PTCR\, varistor)\, ferrites\, micros
 tructural analysis\, microscopy\, transmission electron microscopy\, HREM\
 , microanalysis\, grain-boundary engineering\, phase equilibria\, high tem
 perature reactions\, sintering\, electromagnetic properties of functional 
 ceramics\, powder synthesis\, synthesis of nanoparticles\, magnetic fluids
 \nIn the seminar\, current research at the Department of Material Synthesi
 s\, Jožef Stefan Institute\, will be briefly reviewed with special focus 
 on the materials containing magnetic nanoparticles.\nThe short review will
  be followed by the presentation on synthesis of multifunctional composite
  nanoparticles. The composite nanoparticles combine useful properties of d
 ifferent materials on a nano scale. One way to synthesize the composite na
 noparticles is by coating of nanoparticles of one material by a coating of
  the other material. A new synthesis route yielding a magnetic spinel ferr
 ite coating on the surface of different core nanoparticles will be present
 ed. The formation of the coating is achieved by the heterogeneous nucleati
 on of iron (oxo)hydroxide at the surface of the core nanoparticles with cl
 ose control of the reaction kinetics during the precipitation of the M2+/F
 e3+ ions (M=Fe\, Co). Subsequently\, the formed (oxy)hydroxide coating tra
 nsforms into magnetic ferrite. The synthesis route will be presented in a 
 case of sandwich-type nanocomposite particles\, consisting of hard-magneti
 c\, hexaferrite (BaFe12O19)\, core nanoparticles\, and soft-magnetic\, spi
 nel maghemite (lambda-Fe2O3)\, shell. The spinel grows epitaxially on the 
 structurally similar hexaferrite enabling exchange magnetic coupling betwe
 en the phases.
LOCATION:CM 1 4 https://plan.epfl.ch/?room==CM%201%204
STATUS:CONFIRMED
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