Topic
Alloy
About: Alloy is a research topic. Over the lifetime, 171884 publications have been published within this topic receiving 1719420 citations. The topic is also known as: alloys.
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TL;DR: In this article, a transition from paramagnetic to superparamagnetism has been discovered due to the appearance of nanoparticles embedded in the amorphous phase of CoCrCuFeNiTi0.5 alloy.
531 citations
TL;DR: In this paper, the percolation of the carbon nanotubes was studied and discussed in relation to the nature of the matrix, the electrical conductivity, the fracture strength and the fracture toughness.
530 citations
TL;DR: In this paper, the performance of carbon supported multimetallic catalysts in aqueous acidic electrolyte has been studied for the oxygen reduction reaction (orr) using high resolution transmission electron microscopy (HRTEM).
528 citations
TL;DR: In this article, a nonequiatomic FeMnNiCoCr alloy is introduced and characterized at multiple scales employing various characterization techniques (e.g., atom probe tomography, electron channeling contrast imaging, electron backscatter diffraction, etc.) to elucidate the role of configurational entropy and intrinsic tensile ductility of high-entropy alloys.
525 citations
TL;DR: In situ Raman and electroanalysis studies suggest the origin of the high selectivity toward C2 products to be a combined effect of the enhanced stabilization of the Cu2O overlayer and the optimal availability of the CO intermediate due to the Ag incorporated in the alloy.
Abstract: Electrodeposition of CuAg alloy films from plating baths containing 3,5-diamino-1,2,4-triazole (DAT) as an inhibitor yields high surface area catalysts for the active and selective electroreduction of CO2 to multicarbon hydrocarbons and oxygenates. EXAFS shows the co-deposited alloy film to be homogeneously mixed. The alloy film containing 6% Ag exhibits the best CO2 electroreduction performance, with the Faradaic efficiency for C2H4 and C2H5OH production reaching nearly 60 and 25%, respectively, at a cathode potential of just −0.7 V vs RHE and a total current density of ∼ – 300 mA/cm2. Such high levels of selectivity at high activity and low applied potential are the highest reported to date. In situ Raman and electroanalysis studies suggest the origin of the high selectivity toward C2 products to be a combined effect of the enhanced stabilization of the Cu2O overlayer and the optimal availability of the CO intermediate due to the Ag incorporated in the alloy.
524 citations