(Co,Fe)Pt nanoparticles by aqueous route; self-assembling, thermal and magnetic properties

Recent Advances in Chemical Synthesis, Self‐Assembly, and Applications of FePt Nanoparticles

“…Alternatively, the stronger organic reducing agent hydrazine (N 2 H 4 ) has been used to reduce metal salts and form FePt nanoparticle in water at low temperature. [44] In this synthesis, H 2 PtCl 6 ·H 2 O and FeCl 2 ·H 2 O, together with hydrazine and a surfactant, such as sodium dodecyl sulfate (SDS) or cetyltrimethylammonium bromide (CTAB), are mixed in water. The hydrazine reduces the metal cations at 70°C, resulting in fcc-structured FePt nanoparticles.…”

Synthesis of monodisperse CoPt3 nanocrystals and their catalytic behavior for growth of boron nanowires

“…In general, previous research indicates that control over the size, shape, and composition of bimetallic magnetic NCs is very important for controlled aggregation of NCs in the synthesis of one-dimensional nanostructured materials [23], and 781 this remains a challenging problem. In the last few years, much effort has been devoted to developing new synthesis techniques for CoPt nanocrystals, including simultaneous reduction of platinum(II) acetylacetonate (Pt(acac) 2 ) and decomposition of Co 2 (CO) 8 in organic solvents [24,25], polyol-reduction of Pt(acac) 2 and Co(CH 3 COO) 2 [26,27], and co-reduction of CoCl 2 and PtCl 2 using strong reducing agents in phenyl ether solution [28].…”

Media effects on nanobrass arc fabrications

“…Changing the composition of these nanoalloys can drastically impact their properties (such as magnetic strength, conductivity, and surface chemistry), so careful attention must be paid to the synthetic methods and control of morphology. In recent years, many methods have been developed for the preparation of nanoalloy materials including: Metal evaporation, grinding of bulk metal, sputtering, organometallic precursor decomposition [18,19], ball milling (BM) [20], solution phase metal salt reduction [21,22], crystallization of noncrystallinestate [23], pulsed electro deposition [24,25], laser vaporization controlled condensation (LVCC) [26], sonochemical method [27,28], mechanical synthesis [29], template synthesis [30], ␥-ray irradiation [31], metal carbonyl pyrolysis [32], sandblast-annealing [33], laser ablation [34], and co-hydrogenolysis [35]. In particular, colloids of nanobrass alloys (␣/␤-CuZn) as well as colloidal solutions of nanocopper are obtained by co-hydrogenolysis of [CpCu(PMe 3 )] and [ZnCp * 2 ] in the presence of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) [35].…”