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Flaky Structured V2O5: Morphology, Formation Scheme and Supercapactive Performance.
- Source :
- Russian Journal of Electrochemistry; Feb2019, Vol. 55 Issue 2, p97-106, 10p
- Publication Year :
- 2019
-
Abstract
- Vanadium pentoxide (V<subscript>2</subscript>O<subscript>5</subscript>) based electrodes for energy storage devices have captured sizeable attention in the past decade owing to their attractive physiochemical features. In the present work, flaky structured V<subscript>2</subscript>O<subscript>5</subscript> was prepared using a single step hydrothermal route. The results from analytical investigations hold up well with the formation scheme proposed. The flaky morphology of V<subscript>2</subscript>O<subscript>5</subscript> facilitates additional pathways for electron transport and effective ion access. When employed as a supercapacitor electrode in a neutral electrolyte, this flaky V<subscript>2</subscript>O<subscript>5</subscript> electrode demonstrates a specific capacitance of 472 F g<superscript>−1</superscript>. Besides, it retains maximum capacitance at higher current density confirming its good rate performance. An asymmetric type supercapacitor using flaky V<subscript>2</subscript>O<subscript>5</subscript> as positive electrode and activated carbon as negative electrode exhibits specific capacitance of 69 F g<superscript>−1</superscript>. This device shows energy density of 10 W h kg<superscript>−1</superscript> within the operational window of 1 V. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10231935
- Volume :
- 55
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Russian Journal of Electrochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 136186896
- Full Text :
- https://doi.org/10.1134/S1023193519010130