نتایج جستجو برای: manganese and nickel
تعداد نتایج: 16842044 فیلتر نتایج به سال:
Lithium-ion batteries (LIBs) are widely used everywhere today, and their recycling is very important. This paper addresses the recovery of metals from NMC111 (LiNi1/3Mn1/3Co1/3O2) cathodic materials by leaching followed antisolvent precipitation. Ultrasound-assisted material was performed in 1.5 mol L−1 citric acid at 50 °C a solid-to-liquid ratio 20 g/L. Nickel(II), manganese(II) cobalt(II) we...
The mode of coordination of8 manganese(fI), cobaltm, nickel(H), copper(II), zinc(H), lead(II) and cadmium(I1) to sodium ascorbate (NaHAsc) was investigated using IR, UV-visible, AAS, elemental microanalyzer, conductivity, magnetic and 'M and I3C NMR spectroscopic studies, NaNAsc is bidentate and coordination was through the carbonyl group and the oxygen atom of carbon-2 enolic hydfoxyl grou...
Non-stoichiometric nickel–copper manganites Ni Cu Mn h O were synthesized by thermal decomposition of x y 32x2y 3d / 4 41d mixed Ni Cu Mn C O , nH O oxalates in air at low temperature (623–673 K). X-ray diffraction showed that, x / 3 y / 3 (32x2y) / 3 2 4 2 for a nickel content x $ 0.1, the oxalates precipitated presented a mixed crystal structure up to a limit value of copper Ni extent, wherea...
in this study, the concentrations of heavy metals (ca, zn, cu, fe, mn, ni) in thesediment of shavoor river in khuzestan province in iran has been investigated. after the library studies and field studies, six samples of water and sediment were taken from the river in order to evaluate heavy metal pollution in sediments. to determine the geochemical phases of metals in sediment samples the 5-ste...
Aim. To study serum concentrations of trace and macro elements their correlations in children adolescents after antitumor therapy, depending on the presence or absence caries. Materials methods. The included 98 patients aged 4 to 17 years who were remission an therapy performed for acute leukemia lymphomas. Patients with carious tooth lesions group 1 ( n = 34) without caries – 2 64). We used in...
Processes for recycling lithium ion batteries (LIB), in particular complex chemistries such as those containing nickel-manganese-cobalt oxide (NMC) cathodes are hindered by tradeoffs between capital cost, process sustainability, and materials recovery. Most metal separations primary secondary production of critical elements rely on anion exchange chemistries. Herein, we explore the application ...
Nickel subsulfide, Ni3S2, alone or combined with manganese or chromium dusts, was administered i.m. to Fischer rats to study the effects of the metals upon Ni3S2 induction of sarcomas at the injection site. The incidence of sarcomas within 2 years after injection of Ni3S2 (1.2 mg) plus manganese (1.0 mg) was 7%, versus 77% in rats that received only Ni3S2 (1.2 mg), and 80% in rats that received...
Magnetic oxides are naturally occurring minerals. In order to understand their unique properties and their utilization in technological applications, one must fully understand the correlation between chemistry, structure, particle size and processing. Among the broad classification of magnetic oxides, the spinel ferrites gain much importance because of their low cost, high magnetic permeability...
Li2Ni8O10 and LiMn2O4 Nanoparticles as cathode materials of lithium ion battery, were successfully synthesized using lithium acetate, nickel and manganese acetate as Li, Ni and Mn sources and stearic acid as a complexing reagent. The structure of the obtained products were characterized by FT-IR and XRD. The shape, size and distribution of the Li2Ni8O10 and LiMn2O4 nanoparticles were observed b...
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