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Title: A polyoxovanadate as an advanced electrode material for supercapacitors
Authors: Chen, Han-Yi
Wee, Grace
Al-Oweini, Rami
Friedl, Jochen
Tan, Kim Soon
Wang, Yuxi
Wong, Chui Ling
Kortz, Ulrich
Stimming, Ulrich
Srinivasan, Madhavi
Keywords: DRNTU::Engineering::Materials
Issue Date: 2014
Source: Chen , H.-Y., Wee , G., Al-Oweini, R., Friedl , J., Tan, K. S., Wang, Y., et al. (2014). A Polyoxovanadate as an Advanced Electrode Material for Supercapacitors. ChemPhysChem, 15(10), 2162-2169.
Series/Report no.: ChemPhysChem
Abstract: Polyoxovanadate Na6V10O28 is investigated for the first time as electrode material for supercapacitors (SCs). The electrochemical properties of Na6V10O28 electrodes are studied in Li+-containing organic electrolyte (1 m LiClO4 in propylene carbonate) by galvanostatic charge/discharge and cyclic voltammetry in a three-electrode configuration. Na6V10O28 electrodes exhibit high specific capacitances of up to 354 F g−1. An asymmetric SC with activated carbon as positive electrode and Na6V10O28 as negative electrode is fabricated and exhibits a high energy density of 73 Wh kg−1 with a power density of 312 W kg−1, which successfully demonstrates that Na6V10O28 is a promising electrode material for high-energy SC applications.
ISSN: 1439-4235
DOI: 10.1002/cphc.201400091
Rights: © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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