dc.contributor.author |
Momodu, Damilola Y.
|
|
dc.contributor.author |
Bello, Abdulhakeem
|
|
dc.contributor.author |
Dangbegnon, Julien K.
|
|
dc.contributor.author |
Barzegar, Farshad
|
|
dc.contributor.author |
Taghizadeh, Fatemeh
|
|
dc.contributor.author |
Fabiane, Mopeli
|
|
dc.contributor.author |
Johnson, Alan T. Charlie
|
|
dc.contributor.author |
Manyala, Ncholu I.
|
|
dc.date.accessioned |
2014-11-14T10:53:04Z |
|
dc.date.available |
2014-11-14T10:53:04Z |
|
dc.date.issued |
2014-09-17 |
|
dc.description.abstract |
In this paper, we demonstrate excellent pseudo-capacitance behavior of nickelaluminum
double hydroxide microspheres (NiAl DHM) synthesized by a facile
solvothermal technique using tertbutanol as a structure-directing agent on nickel
foam-graphene (NF-G) current collector as compared to use of nickel foam current
collector alone. The structure and surface morphology were studied by X-ray
diffraction analysis, Raman spectroscopy and scanning and transmission electron
microscopies respectively. NF-G current collector was fabricated by chemical vapor
deposition followed by an ex situ coatingmethod of NiAlDHMactivematerial which
forms a composite electrode. The pseudocapacitive performance of the composite
electrode was investigated by cyclic voltammetry, constant charge–discharge and
electrochemical impedance spectroscopy measurements. The composite electrode
with the NF-G current collector exhibits an enhanced electrochemical performance
due to the presence of the conductive graphene layer on the nickel foam and gives a
specific capacitance of 1252 F g−1 at a current density of 1 A g−1 and a capacitive
retention of about 97% after 1000 charge–discharge cycles. This shows that these
composites are promising electrode materials for energy storage devices. |
en_US |
dc.description.librarian |
am2014 |
en_US |
dc.description.sponsorship |
A.T.C.J acknowledges support from the LRSM, through the U.S. National Science
Foundation MRSEC, Grant No. DMR-1120901. D M acknowledges the financial support from the
University of Pretoria and the NRF Doctorate Innovation Fund for his study. |
en_US |
dc.description.uri |
http://scitation.aip.org/content/aip/journal/adva |
en_US |
dc.identifier.citation |
Momodu, D, Bello, A, Dangbegnon, J, Barzeger, F, Taghizadeh, F, Fabiane, M, Johnson, ATC & Manyala, N 2014, 'Solvothermal synthesis of NiAl double hydroxide microspheres on a nickel foam-graphene as an electrode material for pseudo-capacitors', AIP Advances, vol. 4, no. 9, pp. 097122-1-097122-14. |
en_US |
dc.identifier.issn |
2158-3226 |
|
dc.identifier.other |
10.1063/1.4896125 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/42576 |
|
dc.language.iso |
en |
en_US |
dc.publisher |
American Institute of Physics |
en_US |
dc.rights |
© Author(s) 2014. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. |
en_US |
dc.subject |
Nickelaluminum double hydroxide microspheres (NiAl DHM) |
en_US |
dc.subject |
Nickel foam-graphene (NF-G) |
en_US |
dc.subject |
Solvothermal synthesis |
en_US |
dc.subject |
Pseudo-capacitors |
en_US |
dc.title |
Solvothermal synthesis of NiAl double hydroxide microspheres on a nickel foam-graphene as an electrode material for pseudo-capacitors |
en_US |
dc.type |
Article |
en_US |