P3HT:PCBM/nickel-aluminum layered double hydroxide-graphene foam composites for supercapacitor electrodes

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Authors

Momodu, Damilola Y.
Bello, Abdulhakeem
Dangbegnon, Julien K.
Barzegar, Farshad
Fabiane, Mopeli
Manyala, Ncholu I.

Journal Title

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Volume Title

Publisher

Springer

Abstract

In this paper, a simple dip-coating technique is used to deposit a P3HT:PCBM/Nickel Aluminum layered double hydroxide-graphene foam (NiAl-LDH-GF) composite onto a nickel foam (NF) serving as a current collector. A self-organization of the polymer chains is assumed on the Ni-foam grid network during the slow “dark” drying process in normal air. Electrochemical cyclic voltammetry (CV) and constant charge-discharge (CD) measurements show an improvement in the supercapacitive behavior of the pristine P3HT:PCBM by an order of magnitude from 0.29 F cm-2 (P3HT:PCBM nanostructures) to 1.22 F cm-2 (P3HT:PCBM/NiAl-LDH-GF composite structure) resulting from the addition of NiAl-LDH-GF material at a current density of 2 mA cm-2. This capacitance retention after cycling at 10 mA cm-2 also demonstrates the electrode material’s potential for supercapacitor applications.

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Keywords

Dip coating, P3HT:PCBM, Graphene foam, Nickel-aluminum layered double hydroxide (NiAl-LDH), Supercapacitor, Nickel foam (NF)

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Citation

Momodu, DY, Bello, A, Dangbegnon, JK, Barzeger, F, Fabiane, M & Manyala, NI 2015, 'P3HT:PCBM/nickel-aluminum layered double hydroxide-graphene foam composites for supercapacitor electrodes', Journal of Solid State Electrochemistry, vol. 19, no. 2, pp. 445-452.