FeCoCu ternary nanoparticles distributed and stabilized in the carbon matrix of FeCoCu/C metal-carbon nanocomposites have been synthesized using controlled IR pyrolysis precursors consisting “polymer / iron acetylacetate cobalt copper acetates” type system obtained by joint dissolution components followed solvent removal. The effect synthesis temperature on structure, composition electromagneti...

The influence of microstructure on the magnetic properties is studied in series of of FeCoNbB, FeCoZrB and FeCoMoBCu amorphous and nanocrystalline alloys with different amount of crystalline phase.V arious thermomagnetic treatments have been used in order to tailor the soft magnetic characteristics of these alloys for potential applications. We report on a beneficial effect of both longitudinal...

The single-atomic-site doping of oxophilic-metal (Ru) species in FeCo-LDH leads to the active atom reconstruction at symmetry-breaking interfaces and then excellent catalytic performance for OER/HER overall water splitting large current densities.

Ultrafast laser-induced dynamics in a ferrimagnetic gadolinium iron cobalt (Gd/FeCo) multilayer with magnetization compensation temperature of TM = 320 K is studied at room as function laser-fluence and strength the applied magnetic field. The found to be substantially different from that archetypical GdFeCo alloys, depending on laser fluence one can distinguish two regimes. At low (⩽1.6 mJ cm-...

The lithium-ion cathode material olivine LiFePO 4 (LFP) has been synthesized for the first time from natural paleozoic iron carbonate (FeCO 3 ). ferrous starting consists of mineral siderite at about 92 wt. % purity. Because FeCO divalent iron, reaction with lithium dihydrogen phosphate (LiH 2 PO ) provides a unique method to develop iron-(II) containing LFP in an inert atmosphere. Since is com...

Understanding the crystallization of metallic glasses is fundamental in design new alloys with enhanced properties and better glass-formability. The a series Fe-based composition [(Fe0.5Co0.5)0.75B0.2Si0.05]100-xMx (M = Mo, Nb Zr) has been studied by means differential scanning calorimetry transmission Mössbauer spectroscopy. This latter technique allows following microstructural evolution thro...