12035-52-8Relevant articles and documents
M3Ni3Sb4 (M = Zr, Hf) and Zr3Pt3Sb4. Ternary antimonides with the Y3Au3Sb4 structure
Wang, Meitian
, p. 3435 - 3438 (1999)
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Antimonato polyoxovanadates with structure directing transition metal complexes: Pseudopolymorphic{Ni(dien)2}3[V 15Sb6O42(H2O)]·nH 2O compounds and {Ni(dien)2}4[V 16Sb4O42(H2O)]
Antonova, Elena,Naether, Christian,Bensch, Wolfgang
, p. 1338 - 1344 (2012)
Three new poloxovanadates were synthesized under solvothermal conditions and were structurally characterized. The two compounds with composition {Ni(dien)2}3[V15Sb6O 42(H2O)]·nH2O (n = 12 and 8; dien = bis(2-aminoethyl)amine or diethylenetriamine) are pseudopolymorphs crystallizing in different space groups. The compounds were obtained by applying identical reaction slurries but using different reaction temperatures. Both compounds feature the [V15Sb6O42(H2O)] 6- anion which is the antimony analogue to the single molecule magnet [V15As6O42(H2O)]6-. Crystal data: 1 tetragonal space group P4, a = 46.9378(3), c = 16.51300(10) A and V = 36380.7(4) A3. 2 rhombohedral space group R3c with a = 23.0517(4), c = 28.6216(5) A and V = 13171.3(4) A3. In 1 several unusual short inter-cluster Sb...O contacts lead to the formation of three different super-clusters with composition V60Sb24O168. The 12 unique {Ni(dien)2}2+ complexes adopt all three possible configurations. In 2 the special arrangement of the {Ni(dien)2} 2+ complexes around the cluster anion prevents inter-cluster Sb...O contacts. The main structural motif of the third compound {Ni(dien)2}4[V16Sb4O 42(H2O)] (3) is the [V16Sb4O 42(H2O)]8- cluster anion consisting of two perpendicular eight-membered rings of VO5 pyramids. Two additional VO5 polyhedra are located on opposite sides. Crystal data: 3 triclinic space group P1, a = 13.5159(4), b = 14.2497(5), c = 14.9419(4) A, α = 98.322(2), β = 114.080(2), γ = 110.130(2)°and V = 2326.35(12) A3.
Phase equilibria in Zr-Ni-Sb ternary system at 870 K
Romaka,Tkachuk,Stadnyk,Romaka
, p. 233 - 236 (2009)
The isothermal section of the phase diagram of the Zr-Ni-Sb ternary system at 870 K in the whole concentration range has been constructed by means of X-ray and metallographic analyses. Eight ternary intermetallic compounds Zr6NiSb2 (
Low temperature solvothermal synthesis of nanosized NiSb as a Li-ion battery anode material
Xie,Zhao,Yu,Qi,Cao,Tu
, p. 231 - 235 (2007)
Nanosized intermetallic compound NiSb was successfully synthesized by a solvothermal route and studied as a promising anode material for secondary lithium-ion batteries. The as-prepared NiSb powder was characterized by X-ray diffraction (XRD), transmission electron microscope (TEM) and field emission scanning electron microscope (FESEM). The electrochemical performance of the nanosized NiSb electrode was investigated by constant current charge and discharge cycling and electrochemical impedance spectroscopy (EIS). It was found that the nanosized NiSb shows a higher initial capacity compared to microsized one prepared by a levitation-melting/ball-milling route due to larger specific surface area of the nanomaterial. The nanosized NiSb shows a rapid capacity fade due to the pulverization and exfoliation of active material caused by severe electrochemical grinding upon long-term cycling.
Phase diagram of the Pb-NiSb system and properties of (NiSb) 1 - X Pb x solid solutions
Abilov, Ch. I.,Agaeva
, p. 104 - 107 (2010)
The phase diagram of the Pb-NiSb system is presented. The system is pseudobinary, with a limited series of NiSb-based solid solutions: 1 mol % Pb at 300 K. In the temperature range 520-670 K, the system contains un unstable compound, Ni3Pb
Synthesis and characterization of mono- and di-antimonide with the first transition metals in group 8B by mechanical alloying
Amornpitoksuk, Pongsaton,Suwanboon, Sumetha,Ratana, Tanakorn,Ratana, Tanattha
, p. 100 - 103 (2010)
Mono- and di-anitimonide compounds between antimony and the first transition metals in group 8B were synthesized by mechanical alloying method. All samples were investigated by the X-ray powder diffraction technique and differential thermal analysis. The single phase can be obtained only for CoSb, NiSb and CoSb2 compounds. In this investigation, a single phase of a marcasite structure (FeSb2 and NiSb2) and Fe 0.56Sb0.44 compound cannot be detected in the XRD patterns after 60 h of milling because of the instability of their structures at low temperature. They decomposed to their starting materials as seen by the characteristic peaks of the starting materials in the XRD patterns after 60 h of milling.
Solution synthesis of nanoparticular binary transition metal antimonides
Kieslich, Gregor,Birkel, Christina S.,Stewart, Andrew,Kolb, Ute,Tremel, Wolfgang
, p. 6938 - 6943 (2011)
The preparation of nanoengineered materials with controlled nanostructures, for example, with an anisotropic phase segregated structure or a regular periodicity rather than with a broad range of interparticle distances, has remained a synthetic challenge for intermetallics. Artificially structured materials, including multilayers, amorphous alloys, quasicrystals, metastable crystalline alloys, or granular metals, are mostly prepared using physical gas phase procedures. We report a novel, powerful solution-mediated approach for the formation of nanoparticular binary antimonides based on presynthesized antimony nanoparticles. The transition metal antimonides M-Sb (M = Co, Ni, Cu 2, Zn) were obtained with sizes ranging from 20 and 60 nm. Through careful control of the reaction conditions, single-phase nanoparticular antimonides were synthesized. The nanophases were investigated by powder X-ray diffraction and (high resolution) electron microscopy. The approach is based on activated metal nanoparticles as precursors for the synthesis of the intermetallic compounds. X-ray powder diffraction studies of reaction intermediates allowed monitoring of the reaction kinetics. The small particle size of the reactants ensures short diffusion paths, low activation barriers, and low reaction temperatures, thereby eliminating solid-solid diffusion as the rate-limiting step in conventional bulk-scale solid-state synthesis.
Solvothermal coordination-reduction route to χ-NiSb nanocrystals at low temperature
Xie, Yi,Lu, Jun,Yan, Ping,Jiang, Xuchuan,Qian, Yitai
, p. 42 - 45 (2000)
A very mild synthesis of nanocrystalline χ-NiSb via a novel solvothermal coordination-reduction process is reported here. The reaction of the mixture of NiCl2, antimony, and KBH4 was carried out in ethylenediamine (en) at 140°C for 24 h. X-ray powder diffraction and transmission electron microscope images show that the products are hexagonal χ-NiSb phase and well crystallized with an average size of about 15 nm. The reaction proceeds through a metallic nickel intermediate. The morphology of the products was influenced markedly by the solvents, and a dendritic crystal of NiSb was obtained in diethylamine. The products were also investigated by UV/vis absorption, photoluminescence, X-ray photoelectron spectra, and Fourier-transform IR. (C) 2000 Academic Press.
On the crystal structure and magnetic properties of the ternary rare earth compounds RETSb2 with RE ≡ rare earth and T ≡ Ni, Pd, Cu and Au
Sologub,Hiebl,Rogl,Noel,Bodak
, p. 153 - 157 (1994)
Novel compounds RETSb2 have been prepared and characterized for T ≡ Cu (RE ≡ rare earth from La to Lu), Ni (RE ≡ La to Ho), Pd (RE ≡ La to Tb) and Au (RE ≡ La to Sm). From X-ray powder diffraction analyses all compounds were found to crystalliz
Nanoporous NiSb to Enhance Nitrogen Electroreduction via Tailoring Competitive Adsorption Sites
Fan, Guilan,Xu, Wence,Li, Jinhan,Chen, Jia-Liang,Yu, Meng,Ni, Youxuan,Zhu, Shengli,Su, Xun-Cheng,Cheng, Fangyi
, (2021/09/06)
Ambient nitrogen reduction reaction (NRR) is attracting extensive interest but still suffers from sluggish kinetics owing to competitive rapid hydrogen evolution and difficult nitrogen activation. Herein, nanoporous NiSb alloy is reported as an efficient electrocatalyst for N2 fixation, achieving a high ammonia yield rate of 56.9 μg h?1 mg?1 with a Faradaic efficiency of 48.0%. Density functional theory calculations reveal that in NiSb alloy, Ni favors N2 hydrogenation while the neighboring Sb separates active sites for proton and N2 adsorption, which optimizes the adsorption/desorption of intermediates and enables an energetically favorable NRR pathway. This work indicates promising electrocatalytic application of the alloys of 3d and p block metals toward the NRR and provides an intriguing strategy to enhance the reduction of inert molecules by restraining the competitive hydrogen adsorption.
