Fabrication and Electrochemical Properties of Porous Co3O4 Nanoplates
[1]LIU Mi,HAN Li-feng,XIAO Yuan-hua,et al.Fabrication and Electrochemical Properties of Porous Co3O4 Nanoplates[J].Journal of Zhengzhou University (Engineering Science),2013,34(03):46-49.[doi:10.3969/j.issn.1671-6833.2013.03.012]
Copy
Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
34
Number of periods:
2013 03
Page number:
46-49
Column:
Public date:
2013-05-31
- Title:
- Fabrication and Electrochemical Properties of Porous Co3O4 Nanoplates
- Keywords:
- electrochemical capacitor; cobalt oxide; porous; nanoplate
- CLC:
- O614.81+2
- DOI:
- 10.3969/j.issn.1671-6833.2013.03.012
- Abstract:
- Abstract: Porous Co3O4 nanoplates prepared with a one-pot hydrothermal synthesis method were synthesizedby calcining the precipitates Co( CO3)0.5,( OH)·0.11H2O at 400 C for 2h.That crystal structures and mor-phologies both of the precursors and products have been characterized with X-ray diffraction ( XRD),field e-mission scanning electron microscopic ( FESEM),high-resolution transmission electron microscopic ( HR-TEM). Electrochemical properties of the Co3O4 nanoplates were carried out using cyclic voltammetry,gal-vanostatic charge-discharge measurements and electrochemical impedance spectroscopy. The results showedthat the porous Co3O4 nanoplates had the thickress of about 50 nm,pore sizes about 10 nm and exhibited highspecific capacitances of 707 F/g at 0.5 A/g and 547 F/g at 8 A/g. Furthermore,the specific capacitance ofthe materials was 97.4% after cycling for 1000 times.
- References:
- -
- Similar References:
Memo
-
Last Update:
1900-01-01