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A composite electrode consisting of nickel hydroxide, carbon nanotubes, and reduced graphene oxide with an ultrahigh electrocapacitance

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Abstract.
A novel 3D nanostructure consisting of Ni(OH)2 nanoparticles, carbon nanotubes (CNTs), and reduced
graphene oxide with an extremely high electrocapacitance is described. The nanostructure consists of
CNTs with embedded Ni(OH)2 nanoparticles as pillars for reduced graphene oxide sheets. Electrochemical
results show that the composite displays specific capacitances as high as 1235 and 780 F g-
1 at
current densities of 1 and of 20 A g
-1, respectively. In addition, the composite retains 80% of its original
capacity after 500 cycles at a discharge current density of 10 A g
-1. This 3D pseudocapacitor electrode has
a number of important features, such as fast ion and electron transfer, easy access of pseudoactive species
and efficient utilization, and excellent reversibility of Ni(OH)2 nanoparticles.

Keywords:
Nickel hydroxide
Carbon nanotubes
Reduced graphene oxide
Composite
Supercapacitor

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Ketersediaan

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Informasi Detail

Judul Seri

Journal of Power Sources

No. Panggil

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Penerbit

New York : Elsevier B.V.., 2013

Deskripsi Fisik

Journal of Power Sources 222 (2013) 326-332

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

222 (2013)

Subjek

PSEUDOKAPASITOR

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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