Topic
Antimony
About: Antimony is a research topic. Over the lifetime, 11450 publications have been published within this topic receiving 155660 citations. The topic is also known as: Sb & element 51.
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TL;DR: In this article, the mechanism of incorporation of metallic antimony in amorphous films of the Ge 20 Sb x Se 80−x (5⩽ X ⩽25) system is studied by measuring the dc conductivity and optical absorption.
45 citations
TL;DR: Arsenic and antimony are toxic substances in Group VA of the periodic table and their geochemistries are complicated by transformations in the environment between oxidation states and the presence of environmentally produced organometallic compounds as discussed by the authors.
45 citations
45 citations
TL;DR: In this article, the anodic properties of antimony trioxide (Sb2O3) nanowires were investigated as electrode material for sodium-ion battery, and the material exhibits a high reversible capacity of 230 mAh/g which is attributed to the reversible complex conversion-alloying reactions between antimony trichloride and sodium.
Abstract: The anodic properties of antimony trioxide (Sb2O3) nanowires were investigated as electrode material for sodium-ion battery. Sb2O3 nanowires were prepared via a mild-condition, solvothermal route based on the hydrolysis of antimony trichloride (SbCl3) in alcohol aqueous solution. The uniform morphology and crystal phases of Sb2O3 nanowires are confirmed by scanning electronic microscopy, transmission electronic microscopy, and X-ray diffraction. The electrochemical performance of Sb2O3 nanowire anodes was studied and the material exhibits a high reversible capacity of 230 mAh/g which is attributed to the reversible complex conversion–alloying reactions between antimony trioxide and sodium.
45 citations
TL;DR: A series of tin + antimony mixed oxide powders, calcined at 773 K, has been studied by electrical conductivity as discussed by the authors, and a continuity in the electrical behaviour is found between semiconducting SnO2 and insulating Sb2O4.
Abstract: A series of tin + antimony mixed oxide powders, calcined at 773 K, has been studied by electrical conductivity. A continuity in the electrical behaviour is found between semiconducting SnO2 and insulating Sb2O4. Pure stannic oxide is an n-type semiconductor and its free electrons come from the first ionization of anionic vacancies whose concentration is ≈ 1018 cm–3 at 608 K under 2.13 × 104 Pa O2. The enthalpy of formation of these vacancies and the ionization energy of their 2nd electrons have been estimated. As the Sb content increases, antimony dissolves into the SnO2 structure in the 5+ state, which increases the conductivity, σ, up to a maximum corresponding to 6.1 Sb atom %. Around this value formation of the Sb2O4 phase begins. The increased conductivity of mixed oxides with high Sb content (>20 atom %), compared with that of Sb2O4, which is an insulator, is attributed to a doping effect by Sn4+ cations in Sb3+ lattice positions of Sb2O4. Comparison of how both σ and catalytic properties vary with Sb content shows that electron transfer between catalyst and adsorbed species is not the rate limiting step in propene oxidation and that the solid solution of Sb5+ in SnO2 cannot constitute the active phase for acrolein formation.
45 citations