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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85 citations
TL;DR: In this article, a mechanochemical reduction of Sb2O3 with, respectively, Al, Ti, and Mo, in the presence of carbon (acetylene black) is presented.
Abstract: Sb-MOx-C (M = Al, Ti, and Mo) nanocomposites have been synthesized by a mechanochemical reduction of Sb2O3 with, respectively, Al, Ti, and Mo, in the presence of carbon (acetylene black). X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and scanning transmission electron microscopy (STEM) data reveal that these nanocomposites are composed of uniformly dispersed nanostructured antimony in the amorphous Al2O3, TiO2, or MoO3 matrix, along with conductive carbon. These composite electrodes exhibit excellent electrochemical cycling performance and rate capability in lithium cells, compared to pure antimony. Among the three Sb-MOx-C systems studied, the M = Al system with Al2O3 as the amorphous phase exhibits the best electrochemical performance, offering a capacity of >430 mAh/g after 100 cycles. The improvement in the cycling performance, compared to that of pure antimony, is attributed to a homogeneous distribution of the electrochemically active Sb nan...
85 citations
TL;DR: In this article, Antimony-doped tin oxide (ATO) films were deposited on Corning glass 1737 substrates by a plasma-enhanced chemical vapor deposition (PE-CVD) technique using a gas mixture of SnCl4-SbCl5/PSnCl4.
Abstract: Antimony-doped tin oxide (ATO) films were deposited on Corning glass 1737 substrates by a plasma-enhanced chemical vapor deposition (PE-CVD) technique using a gas mixture of SnCl4–SbCl5–O2–Ar. Electrical properties and surface morphologies of these films were studied by varying the deposition temperature, input gas ratio, R[=(PSbCl5/PSnCl4)], and RF power. The PE-CVD method effectively enhanced the deposition rate and also improved the surface roughness of the deposit compared with thermal CVD. The antimony doped tin oxide films which had relatively good electrical properties were obtained at a deposition temperature of 450°C, an input gas ratio of R=1.12, and a RF power of 30 W. In addition, the studies on the morphological development of the films by AFM analysis suggested that higher input gas ratio and lower deposition temperature led to a decrease in the surface roughness of the deposited films.
85 citations
TL;DR: The electrical and optical properties of tin oxide (SnO2) thin films heavily doped with antimony (Sb) have been investigated in this article, where the films were prepared by spray pyrolysis at a temperature of 500°C.
Abstract: The electrical and optical properties of tin oxide (SnO2) thin films heavily doped with antimony (Sb) have been investigated. The films were prepared by spray pyrolysis at a temperature of 500°C. An undoped SnO2 film is transparent and its resistivity is 4 × 10−3 Ω cm. With increase in antimony content the resistivity initially decreases and then begins to increase. The decrease in the resistivity can be attributed to the substitutional doping by pentavalent antimony Sb5+, whereas the increase in the resistivity can be attributed to the substitutional doping by trivalent antimony Sb3+. The films become opaque with increasing antimony content and finally tum black. The interaction between antimony in the two different oxidation states in the SnO2 lattice is responsible for the blackening of the films.
85 citations
01 Oct 1954
TL;DR: In this paper, the Brillouin zone for white tin is overlapped across planes of energy discontinuity which lie parallel to the tetragonal axis; the most probable form of this zone is bounded by planes of the (220) and (211) families.
Abstract: The variation with composition of the lattice spacings of the solid solutions in tin of antimony, bismuth, lead, indium, cadmium, zinc and mercury has been determined. Antimony and bismuth decrease the axial ratio of white tin, while the other elements investigated increase the axial ratio. This suggests that the Brillouin zone for white tin is overlapped across planes of energy discontinuity which lie parallel to the tetragonal axis; the most probable form of this zone is discussed. The suggested Brillouin zone is bounded by planes of the (220) and (211) families, of which only the former are overlapped. The axial ratio variations may then be interpreted, and a possible explanation given for anomalies in the lattice spacing-composition curves for tin-indium and tin-cadmium alloys, which are associated with the development of vacant lattice sites.
85 citations