کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1515839 | 1511554 | 2012 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A layer-by-layer assembly route to [Mn1/3Co1/3Ni1/3]O2 hollow spheres with electrochemical activity A layer-by-layer assembly route to [Mn1/3Co1/3Ni1/3]O2 hollow spheres with electrochemical activity](/preview/png/1515839.png)
The monolayered nanosheets of layered [Mn1/3Co1/3Ni1/3]O2 are prepared by the exfoliation of protonated Li[Mn1/3Co1/3Ni1/3]O2 compound and applied as a precursor for synthesizing the hollow spheres of manganese cobalt nickel oxide. The hollow spheres of layered [Mn1/3Co1/3Ni1/3]O2 are synthesized via the layer-by-layer (LBL) coating of the nanosheets and polycations on the polystyrene (PS) beads and the following heat-treatment. According to powder X-ray diffraction and diffuse reflectance UV–vis spectroscopy, the layered crystal structure and optical property of [Mn1/3Co1/3Ni1/3]O2 nanosheets are well-maintained upon the coating on the PS beads. The high-resolution transmission electron microscopy clearly demonstrates the hollow sphere morphology of the obtained material. The electrode functionality of the [Mn1/3Co1/3Ni1/3]O2 hollow spheres is verified by cyclic voltammetry.
► The hollow spheres of layered [Mn1/3Co1/3Ni1/3]O2 are for the first time synthesized.
► A coating of [Mn1/3Co1/3Ni1/3]O2 nanosheets on template PS bead produces hollow spheres.
► The electrode activity of the obtained hollow spheres is verified.
Journal: Journal of Physics and Chemistry of Solids - Volume 73, Issue 12, December 2012, Pages 1492–1495