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 role of Sb5+ in the construction of a phase structure and the enhancement of electrical properties of a pure KNN ceramic was clarified, and the grain sizes were determined by the Sb 5+ content, that is, the optimum sb 5 + content (x ≤ 0.05) induces grain growth, and their grain sizes become considerably smaller when the compositions deviate from x > 0.
Abstract: In the past ten years, antimony has been reported to strongly affect the developments in the piezoelectric properties of (K,Na)NbO3 (KNN) lead-free ceramics, that is, its enhanced piezoelectric activity is closely related to the doped antimony as well its content. In this work, we clarified the role of Sb5+ in the construction of a phase structure and the enhancement of electrical properties of a pure KNN ceramic. Research has shown that doping with Sb5+ can simultaneously move their orthorhombic–tetragonal phase transition temperature (TO–T) and rhombohedral–orthorhombic phase transition temperature (TR–O) forward to room temperature, benefiting the formation of three types of phase boundaries. The coexistence of rhombohedral and orthorhombic phases was established in the Sb5+ composition range of 0.07–0.09 by this regulation. In addition, their grain sizes were determined by the Sb5+ content, that is, the optimum Sb5+ content (x ≤ 0.05) induces grain growth, and their grain sizes become considerably smaller when the compositions deviate from x > 0.05. More importantly, their electrical properties could be also tuned by changing the Sb5+ content. Their dielectric, ferroelectric, and piezoelectric properties are strongly dependent on the antimony content, whereas the strain behavior is mainly ascribed to the multi-phase transition region as well as the structural change of phase transitions. As a result, this work would help to further understand the underlying physical origin for enhanced electrical properties in alkali niobate ceramics.
68 citations
TL;DR: In this article, antimony-doped tin oxide (ATO) nanostructures were prepared using chemical precipitation technique starting from SnCl2, SbCl3 as precursor compounds.
68 citations
TL;DR: Five novel antimony(III) complexes with the mono- and bis(thiosemicarbazone) ligands of 2N1S or 4N2S donor atoms, N'-1-(2-pyridyl)ethylidene]morpholine-4-carbothiohydrazide and bis-1,4-piperazinedicarbothioHydrazide, showed moderate antimicrobial activities against Gram-positive and -negative bacteria, yeasts
68 citations
TL;DR: The formation of different phases belonging to Bi-O system during thermal treatments of the Bi-based films is investigated by means of spectroscopic ellipsometry (SE), polarising microscope observation, X-ray diffractometry (XRD), and infrared spectrometry (IR).
Abstract: Owing to their peculiar characteristics, bismuth oxides are used in various domains, such as microelectronics, sensor technology, optical coatings, transparent ceramic glass manufacturing, etc. Bismuth oxide system exhibit high oxide ionic conductivity and have been proposed as good electrolyte materials for application, such as solid oxide fuel cell (SOFC) and oxygen sensor. Antimony doped and undoped Bi 2 O 3 films were deposited onto glass substrate from bismuth nitrate and antimony precursor solutions. As chelating agent polyethyleneglycol (PEG) was used and the above-mentioned precursor solutions were sufficiently viscous. In the present paper, the formation of different phases belonging to Bi–O system during thermal treatments of the Bi-based films is investigated by means of spectroscopic ellipsometry (SE), polarising microscope observation, X-ray diffractometry (XRD), and infrared spectrometry (IR). The thickness and the porosity of the films were evaluated. These preparation techniques, differing mainly in precursor materials and method of deposition, lead to different quality of the resulting films.
68 citations
TL;DR: In this paper, a simple procedure was described for the determination of arsenic and antimony in electrolytic copper, and the lower limits of determination were 56 ng As and 28 ng Sb per gram of copper.
68 citations