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: The surface-state-dominant transport in antimony-doped, zinc oxide-encapsulated Bi(2)Se(3) nanoribbons with suppressed bulk electron concentration is reported, achieving extremely low two-dimensional carrier concentration of 2×10(11) cm(-2).
Abstract: The singular properties of topological insulators are defined by the topological nature of their metallic surface states. This study shows that by doping Bi2Se3 nanoribbons with antimony, the transport properties of these surface states are measurable and can be distinguished from the contributions due to the bulk of the samples.
235 citations
TL;DR: The thermoelectric figure of merit (z), resistivity, and Seebeck coefficient have been measured between 20° and 300°K on single crystals of several alloys in the range from 1% to 40% antimony in bismuth.
Abstract: The thermoelectric figure of merit (z), resistivity, and Seebeck coefficient have been measured between 20° and 300°K on single crystals of several alloys in the range from 1% to 40% antimony in bismuth. These materials are semimetals (0 to 5% antimony) or small energy gap intrinsic semiconductors (5 to 40% antimony) and all are n type. The Seebeck coefficients and figures of merit are anisotropic, the larger values being those measured parallel to the threefold symmetry axis. In the 12% antimony alloy the larger z rises from 1.0×10−3/°K at 300°K to a maximum of 5.2×10−3/°K at 80°K and falls rapidly at lower temperatures. All of the alloys between 3% and 16% antimony have a maximum z near 5×10−3/°K at a temperature between 70°K and 100°K. The 5% antimony alloy has the highest z at room temperature (z=1.8×10−3/°K). In this material, the Seebeck coefficient is practically constant (S=−110±10 μv/°K) between 77° and 300°K and the ratio of the thermal to electrical conductivities is close to the theoretical Wi...
234 citations
TL;DR: In this article, the atomic line emission from the elements in an inductively coupled plasma source after their introduction as the gaseous hydrides was investigated, and mutual interferences between the analytes were found to be negligible under the operating conditions used.
Abstract: In the simultaneous determination of arsenic, antimony, bismuth, selenium and tellurium by measurement of the atomic line emission from the elements in an inductively coupled plasma source after their introduction as the gaseous hydrides, two types of possible interferences were investigated. Mutual interferences between the analytes were found to be negligible under the operating conditions used. The presence of certain metal ions in solution resulted in low recoveries of some of the analytes, especially selenium and tellurium. However, this could be overcome by prior separation of the analytes by co-precipitation on lanthanum hydroxide.
232 citations
TL;DR: In this article, X-ray diffraction and transmission electron microscopy were used to characterize polypropylene-graft-maleic anhydride with organically modified clays.
Abstract: Nanocomposites of polypropylene-graft-maleic anhydride with organically modified clays have been prepared and characterized by X-ray diffraction and transmission electron microscopy. Their combustion behavior has been evaluated using oxygen consumption cone calorimetry. Synergy is observed between the nanocomposite formed and conventional vapor phase fire retardants, such as the combination of decabromodiphenyloxide and antimony oxide. The presence of bromine and antimony does not affect the heat release rate curves of the virgin polymer.
232 citations
TL;DR: In this paper, a method for the determination of arsenic, bismuth, germanium, lead, antimony, selenium, tin and tellurium by means of hydride generation is described.
Abstract: A method for the determination of arsenic, bismuth, germanium, lead, antimony, selenium, tin and tellurium by means of hydride generation is described. The hydrides are generated by adding the acidified sample to dilute (1 per cent. m/V) sodium borohydride solution. The liberated hydrides are passed directly into a 17 cm long silica tube mounted in an air-acetylene flame. The advantages of the proposed system are its simplicity, high sensitivity, high speed of analysis and the fact that background correction facilities are not required.The generation of plumbane for analytical purposes does not appear to have been reported previously.
227 citations