Metal-arene reduced Fe–Sb nanoparticles as a highly efficient catalyst for nitrophenol reduction

Abstract

Recently discovered enhanced electrochemical performance of binary antimonides has attracted significant interest as anode material in lithium/sodium ion batteries, however, their potential as an efficient catalyst has not been much...

Advancing Cryogenic Cooling with Self-Modulated YbAgCu4 for Enhanced Thermoelectric Efficiency below Liquid-Nitrogen Temperatures

“…The temperature dependence of the electrical resistivity of the final MS + SPS nanoalloyed samples (S30, S30Mod, S40, and S40Mod) is shown in Figure , from which it is clear that all sample show sudden change in their conductive behavior at ∼75 K. Clearly, the samples display weak semiconductor behavior above 75 K but strong metallic behavior below 75 K. Similar observation have also been reported earlier . The observed electrical behavior could be analyzed using phenomenological method usually applied to many heavy Fermion systems, − according to which electron–phonon interactions and electron scattering from Lorentzian-shaped 4f bands dominate electrical resistivity. Thus, following Mott’s analogy, resistivity resulting from electron scattering in the conduction and f band is proportional to the density of state of the f states at Fermi level.…”

Fine-Grained Bi–Sb Ribbons with Modulation-Doped FeSb Nanoparticles for High-Temperature Cryogenic Applications

“…23,47 Second, FeSb is one such binary antimonide that is ferromagnetic and has lower formation energy than Bi− Sb phases. 21,48 Thus, FeSb could be expected to remain in a randomly dispersed nucleated state within the Bi−Sb melts, which may (under suitable conditions) further grow to form ferromagnetic FeSb NPs within the Bi 1−x Sb x matrix.…”

“…We chose FeSb as the secondary incorporated phase in the host Bi 1– x Sb x for two reasons. First, the lattice parameters of both systems are very close, so the chances of lattice mismatch are unlikely. , Second, FeSb is one such binary antimonide that is ferromagnetic and has lower formation energy than Bi–Sb phases. , Thus, FeSb could be expected to remain in a randomly dispersed nucleated state within the Bi–Sb melts, which may (under suitable conditions) further grow to form ferromagnetic FeSb NPs within the Bi 1– x Sb x matrix.…”