LACAME 2008

Eleventh Latin American conference on the applications of the Mössbauer effect, LACAME 2008, La Plata, Argentina, 9-14 November 2008.- Preface.- Fe/MCM-41 sylilated catalyst: structural changes determination during the Fischer-Tropsch reaction.- Reduction of hematite with ethanol to produce magnetic nanoparticles of Fe3O4, Fe1???x O or Fe0 coated with carbon.- Magnetic nanoparticles based on iron coated carbon produced from the reaction of Fe2O3 with CH4: a Mössbauer study.- Niobian iron oxides as heterogeneous Fenton catalysts for environmental remediation.- Magnetic minerals from volcanic Ultisols as heterogeneous Fenton catalysts.- Hematite reaction with tar to produce carbon/iron composites for the reduction of Cr(VI) contaminant.- Supported iron based redox systems for hydrogen production and storage from ethanol.- Mineralogical characterization of Greda clays and monitoring of their phase transformations on thermal treatment.- Mössbauer spectroscopy study of a mineral sample from Oshno Hill, District of Chavín de Pariarca, Huanuco Region, Peru.- Hematite from a mining area in the east border of Quadrilátero Ferrífero, Minas Gerais, Brazil.- Mössbauer studies of one representative hydromorphic soil of the coastal area of the Rio de La Plata.- 57Fe Mössbauer spectroscopy of radiation damaged samarskites and gadolinites.- Synthesis of hematite nanowires using a mesoporous hard template.- Mössbauer characterization of surface-coated magnetic nanoparticles for applications in transformers.- Formation of nanostructured Al 64 Cu 23 Fe 13 icosahedral quasicrystal by the ball milling technique.- Mössbauer and EXAFS spectroscopy investigation of iron and arsenic adsorption to lettuce leaves.- Characterization of corrosion products of a carbon steelscrew-nut set exposed to mountain weather conditions.- The role of the spinel phases on the rust activity in corroded steels.- On the reaction of iron oxides and oxyhydroxides with tannic and phosphoric acid and their mixtures.- Design of a conversion electron Mössbauer spectrometer based on an electron multiplier. Evaluation of the mean-escape-depth of the detected signals.- Magnetic properties of ?-Fe2O3 nanoparticles encapsulated in surface-treated polymer spheres.- Low temperature magnetic ordering in Fe-doped TiO 2 samples.- A quasi-continuous observation of the ?-transition of Fe1?+?x S by Mössbauer line tracking.- Mössbauer study of Fe-Co alloys with Cr additions synthesized by mechanical alloying.- Structure and soft magnetic properties of FINEMET type alloys: Fe73.5Si13.5Nb3???x Mo x B9Cu1 (x?=?1.5, 2).- Influence of silicon and atomic order on the magnetic properties of (Fe80Al20)100- x Si x nanostructured system.- Fe-doped SnO 2 nanopowders obtained by sol-gel and mechanochemical alloying with and without thermal treatment.- Crystallographic and 119Sn and 155Gd Mössbauer analyses of Gd5Ge2(Si1???xSnx)2 (x = 0.23 and x = 0.40).- A Mössbauer effect study of the Fe2+x Mn1-x Al Heusler alloys.- Mössbauer analysis of Nd-Co M-type strontium hexaferrite powders with different iron content.- Quasicrystalline phase formation in the mechanically alloyed Al70Cu20Fe10.- Structural and magnetic properties of Fe-Ni mecanosynthesized alloys.- Mössbauer study on Zn1???x Fe x O semiconductors prepared by high energy ball milling.- Hyperfine, structural and electrical transport properties of the high-energy milled (1 ? X).ZnO-X.FeO system.- Effect of Ni on the lattice parameter and the magnetic hyperfine field in(Fe70Al30)100???x Ni x alloys.- Characterization of scraps produced by the industrial laser cutting of steels.- Mössbauer spectroscopy analysis on a tempered martensitic 9% Cr steel.- Synthesis and characterization of silica-coated nanoparticles of magnetite.- Synthesis and characterization of superparamagnetic iron oxide nanoparticles for biomedical applications.