Barzegar, FarshadKhaleed, Abubakar A.Ugbo, F.U.Oyeniran, K.O.Momodu, Damilola Y.Bello, AbdulhakeemDangbegnon, Julien K.Manyala, Ncholu I.2017-02-132017-02-132016Barzegar, F., Khaleed, A.A., Ugbo, F.U., Oyeniran, K.O., Momodu, D.Y., Bello, A., Dangbegnon, J.K. & Manyala, N. Cycling and floating performance of symmetric supercapacitor derived from coconut shell biomass. AIP Advances 6, 115306 (2016); DOI: 10.1063/1.4967348.2158-322610.1063/1.4967348http://hdl.handle.net/2263/59006This work present two-step synthesizes route to low-cost mesoporous carbon from coconut shell. The electrochemical characterization of the coconut shell based activated carbon (CSAC) material as electrode for supercapacitor showed a specific capacitance of 186 F g-1, energy density of 11 Wh kg-1 and power density of 325 W kg-1 at a 0.5 A g-1 with an excellent stability after floating for 100 h and cycling for 10000 cycles in polymer gel electrolyte. The CSAC showed very good potential as a stable material for supercapacitors desirable for high power applications.en© 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) licenseCoconut shellSupercapacitorPower applicationsCoconut shell based activated carbon (CSAC)Article