Facile synthesis of fully ordered L10-FePt nanoparticles with controlled Pt-shell thicknesses for electrocatalysis

Atomic Carbon Layers Supported Pt Nanoparticles for Minimized CO Poisoning and Maximized Methanol Oxidation

“…In comparison to commercial Pt/C catalysts, they own higher catalytic reaction areas or more active sites, leading to promoted MOR activity. To address the problem of CO poisoning on the Pt catalysts, bi‐metal catalysts (e.g., Pt with Ru, Co, Fe, and Ni) have been designed and synthesized. The idea behind is to increase the amount of adsorbed OH species in that these OH species are essential for the complete oxidation of carbonaceous intermediates (e.g., CO) generated during MOR .…”

“…This is because the adsorption of OH species on the Pt catalysts is weak, due to its low adsorption energy. For example, on the bi‐metal catalysts (Pt with Ru, Co, Fe, and Ni), the OH species have been efficiently produced from activated H 2 O at low potentials. Consequently, the MOR activity is enhanced and the resistance of CO poisoning is improved .…”

Facile liquid-assisted one-step sintering synthesis of superfine L10-FePt nanoparticles

“…The increased degree of order, s, and grain size led to the enhancement of the coercive eld, which was comparable to previous reports. The L1 0 -FePtBi nanoparticles of size 21 nm, with s ¼ 0.91, showed a coercive eld of 1.52 T. 18 An obvious kink was observed in the magnetic hysteresis loops of the L1 0 -FePt NPs sintered at 600 C and 19,21,23 On increasing the sintering temperature, the quantity of superparamagnetic FePt NPs decreased. Therefore, the kink in the magnetic hysteresis loops was lower at 700 C and 750 C, and the rectangular ratios increased.…”

Lithographic patterning of ferromagnetic FePt nanoparticles from a single-source bimetallic precursor containing hemiphasmidic structure for magnetic data recording media

“…Magnetic nanoparticles (NPs), owing to their designable functional properties, are regarded as an important class of artificial nanostructured materials in various fields, such as electrocatalysis, magnetic data storage, and biomedical applications [1][2][3][4][5][6][7][8][9][10][11]. Monodisperse L1 0 FePt NPs with nearly equal atomic ratio exhibit high magnetocrystalline anisotropy and have a chemically ordered facecentered tetragonal (fct) structure [12], which are also considered as the prospective activated materials for the next-generation data storage system [13].…”