Rantho, Mologadi NkiyasiMadito, M.J. (Moshawe)Manyala, Ncholu I.2020-03-272020-04Rantho, M.N., Madito, M.J. & Manyala, N. 2020, 'High-performance symmetric supercapacitor device based on carbonized iron-polyaniline/nickel graphene foam', Journal of Alloys and Compounds, vol. 819, art. 152993, pp. 1-13.0925-8388 (print)1873-4669 (online)10.1016/j.jallcom.2019.152993http://hdl.handle.net/2263/73847Please read abstract in the article.en© 2019 Elsevier B.V. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Journal of Alloys and Compounds Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Journal of Alloys and Compounds, vol. 819, art. 152993, pp. 1-13, 2020. doi : 10.1016/j.jallcom.2019.152993.Light-emitting diodes (LEDs)SupercapacitorSymmetric deviceNegative electrodeGraphene foamPolyaniline (PANI)Postprint Article