| abstract |
The invention discloses a Yb/Ni-Co oxide nanocrystal and a preparation method thereof. The main point of the technical solution is to disclose a Yb/Ni-Co oxide nanocrystal with a solid nano-spherical structure, which is obtained by oleic acid, oil Amine and octadecene are pre-mixed to prepare a solution, and then Ni(CH 3 COO) 2 ∙4H 2 O, Co(CH 3 COO) 2 ∙4H 2 O and Yb(NO 3 ) 6 ∙5H 2 O are added and mixed together The precursor is prepared by heating to 200°C, and the finished product is obtained by heating to 380°C after washing. Compared with the prior art, the advantage of the present invention is that the prepared Yb/Ni-Co oxide nanocrystal has excellent supercapacitor performance. It can charge and discharge quickly, that is, store electric energy efficiently. The preparation method can controlly synthesize Yb/Ni-Co oxide nanocrystals, and at the same time, it is very convenient to control Yb/Ni-Co by changing the amount of solvent and calcination temperature. The morphology of the oxide nanocrystals, the process is simple, the time is short, and it is suitable for mass production. |