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Simple method for the preparation of highly porous ZnCo2O4 nanotubes with enhanced electrochemical property for supercapacitor.
- Source :
-
Electrochimica Acta . Mar2014, Vol. 123, p450-455. 6p. - Publication Year :
- 2014
-
Abstract
- Abstract: One-dimensional (1D) ZnCo2O4 porous nanotubes (PNTs) have been synthesized using a simple technique of electrospinning followed by calcination in air and firstly applied in supercapacitors (SCs). The obtained ZnCo2O4 nanomaterial displays 1D architecture with a highly porous nature and hollow interiors. This unique structure significantly enlarged the electroactive surface areas of the ZnCo2O4, leading to better electrolyte/electrode contact, more efficient transport pathways and good strain accommodation. Our experimental results demonstrate that it exhibits a high specific capacitance of 770 F g−1 at 10 A g−1, excellent rate property (84% of the capacity retention at 60 A g−1) and good cycling stability of only 10.5% loss after 3000 cycles. Compared with the ZnCo2O4 nanoparticals, such obtained PNTs possess enhanced rate and capacitive properties. Our work confirms the as-prepared ZnCo2O4 PNTs can serve as advanced SCs materials. It is highly expected this simple method of electrospinning can be extended to prepare other superior electrochemical materials. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 123
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 95225280
- Full Text :
- https://doi.org/10.1016/j.electacta.2014.01.018