期刊
CHEMELECTROCHEM
卷 5, 期 1, 页码 101-111出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201700923
关键词
co-precipitation; nanorods; pseudocapacitors; symmetric supercapacitors; transition metal oxides
资金
- Dongguk university-Seoul
- Study and Research at Dongguk University (SRD)
A high-performance symmetric supercapacitor was fabricated using a Na0.33V2O5 nanocomposite synthesized by means of a simple co-precipitation technique. The structural and morphological investigation showed that the synthesized Na0.33V2O5 nanocomposite exhibited a monoclinic structure with a nanorod-like morphology. The electrochemical properties of the Na0.33V2O5 symmetric supercapacitor were studied utilizing three different aqueous electrolytes, such as 1 M of LiCl, NaCl and KCl, respectively. Interestingly, the fabricated Na0.33V2O5 symmetric supercapacitors exhibited excellent electrochemical capacitance behaviour in all the electrolytes with a maximum specific capacitance value of 168 Fg(-1) in 1 M LiCl, 146 Fg(-1) in 1 M NaCl and 132 Fg(-1) in 1 M KCl electrolytes at 0.5 Ag-1 discharge current density. In addition, Na0.33V2O5 symmetric supercapacitors demonstrated an excellent cyclic stability in 1 M NaCl electrolyte with high capacitance retention of approximately 81% after 50000 charge/discharge cycles.
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