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by spray-drying process[17]. The XRD patterns of the powders sintered at 700, 800, 900 and 1 000 ℃ are Li(Ni1/3Mn1/3Co1/3)O2 similar to that of LiCoO2 (α-NaFeO2 type, space group and no impure peaks......
of oxidation and burning during melting and casting [1-3]. Fluxes and cover gases are currently used in the melting and production processes, which need complex equipment and are prone to make casting impure... on the surface were removed lightly at 730 ℃. When the red molten liquid was all covered by a sheet of silvery film that could prevent the molten alloy from ignition, the molten alloy was cooled quickly......
. Alloy electrodes were prepared by the following methods: metals were melted at 700 ℃, mixed by stirring, cast into cubes, cut into small pieces of 10 mm×10 mm×5 mm, welded with a plastic isolated copper... and most impure elements in grain boundary aggregate badly (as shown by the arrow in Fig.3(a)). The corrosion resistance of the alloy is relatively poor. With the increase of Bi content to 0.1......
process residues[J]. Hydrometallurgy, 1999, 51: 207-226. [13] FOUNTOULAKIS S G. Studies in the cementation of cobalt with zinc in the presence of copper and antimony additives[D]. Columbia: Columbia...]. Electrochemistry Communications, 2004, 6(8): 800-804. [15] TONDER G J V, CILLERS P J, MEYER E H O, VEGTER N M, KLUE R, IZATT S R, BRUENING R L. Cobalt and nickel removal from zincor impure electrolyte......
State and Materials Science, 1996, 1: 506-513. [10] SWEEGERS C. Morphology, evolution and other characteristics of gibbsite crystals grown from pure and impure aqueous sodium aluminate solutions [J......
molecular and crystal structure[J]. Solid State and Materials Science, 1996(1): 506-513. [10] SWEEGERS C. Morphology, evolution and other characteristics of gibbsite crystals grown from pure and impure......
was constituted of copper piece served as cathode, zinc board as anode and electrolyte. During electroplating process, stable current was output by electroplating rectifier of style DZZ-4. The thickness... of mass fraction was measured by spectrophotometer of style 721. Cathodic current efficiency was measured by copper coulometer[17-18]. Three-electrode system was adopted. H-style cell was served......
and Materials Science, 1996, 1: 506－513. [9] Sweegers C. Morphology, evolution and other characteristics of gibbsite crystals grown from pure and impure aqueous sodium aluminate solutions[J]. Journal......
and performance of impure LiMn2O4 cathodes [D]. Changsha: Central South University, 2007: 35-51. (in Chinese) [18] Shannon R D. Crystal physics, diffraction, theoretical and general crystallography [J]. Acta......
is impure, mixed with a little unreacted ZnO. From Fig.4(b), ZnS prepared with Na2S concentration of 2.0 mol/L is purer and less impurity diffraction peaks are found. Fig.4 XRD patterns of ZnS prepared......
