17263-56-8Relevant articles and documents
A tartaric acid copper-zirconium compound and its preparation method and application (by machine translation)
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Paragraph 0025; 0036; 0040; 0044, (2017/08/25)
The invention discloses a tartaric acid copper-zirconium compound, the preparation comprises the following steps: to tartaric acid as the raw material, first with nitric acid copper reaction preparing tartaric acid copper, with the nitrate by the reaction of the tartaric acid copper-zirconium compound. Its structural formula is as follows: the invention is mainly applied in the propellant as a combustion catalyst and instability in the combustion plans the preparation. (by machine translation)
Effects of the size of nano-copper catalysts and reaction temperature on the morphology of carbon fibers
Zhang, Qian,Yu, Liyan,Cui, Zuolin
, p. 735 - 742 (2008/10/09)
In this study, carbon fibers with different morphologies, including coiled carbon nanofibers and straight carbon fibers, were obtained by the chemical vapor deposition using a Cu-catalytic pyrolysis of acetylene at 250 °C. The influences of nano-copper catalyst particle size and the reaction temperature on the morphology of carbon fibers were investigated. Under the same reaction condition, coiled carbon nanofibers generally were synthesized using nano-copper catalyst with smaller particles size, and bigger copper particles are apt to produce straight carbon fibers. With decreasing of reaction temperature to 200 °C, straight carbon fibers were obtained, instead of coiled carbon nanofibers at 250 °C. The product was characterized by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and X-ray powder diffraction (XRD).
Synthesis and equilibrium studies of mixed-ligand complexes of Co(II), Ni(II), and Cu(II) with some aliphatic dicarboxylic acids and creatinine
Ahmed, Iman T.
, p. 523 - 540 (2008/10/09)
Ternary mixed-ligand metal complexes [M(L1)(L2) 2](H2O)n, where M = Co(II), Ni(II), or Cu(II), L1 = the dianion of succinic, malic, or tartaric acid, and L 2 = creatinine, were synthesized and characterized using microchemical and thermal analyses, molar conductance, infrared, and electronic spectral measurements. A square-planar structure is suggested for the Co(II) and Cu(II) ternary complexes, whereas Ni(II) ternary complexes have tetrahedral stereochemistry. Formation constants of the binary and ternary complexes in such systems were determined by pH-metric titrations at 25 ± 0.1°C and at a constant ionic strength I = 0.1 M (KNO3). The stability of the various complexes was discussed in terms of the nature of both the ligands and metal ions. The thermodynamic functions (ΔH, ΔG, and ΔS°) associated with the complex formation of [Cu(II) + aliphatic acids + creatinine] were also determined and examined.
