e-journal

Nickel foam-supported porous Ni(OH)2/NiOOH composite film as advanced pseudocapacitor material

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Abstract.
A porous net-like -Ni(OH)2/γ-NiOOH composite film is prepared by a chemical bath deposition. The
as-prepared porous composite film shows a highly porous structure built up by many interconnected
nanoflakes with a thickness of about 20 nm. The pseudocapacitive behavior of the porous composite
film is investigated by cyclic voltammograms (CV) and galvanostatic charge–discharge tests in 1MKOH.
The porous β-Ni(OH)2/γ-NiOOH composite film exhibits a noticeable pseudocapacitance with 1420 F g−1
at 2Ag−1 and 1098 F g−1 at 40Ag−1, respectively, much higher than those of the dense Ni(OH)2 film
(897 F g−1 at 2Ag−1 and 401 at 40Ag−1). The porous architecture is responsible for the enhancement
of the electrochemical properties, and it increases electrochemical reaction area, shortens ions diffusion
paths and relaxes volume change caused by the electrochemical reactions.

Keywords:
Nickel hydroxide
Porous film
Chemical bath deposition
Pseudocapacitor

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Ketersediaan

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Informasi Detail

Judul Seri

Electrochimica Acta

No. Panggil

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Penerbit

New York : Elsevier Ltd.., 2011

Deskripsi Fisik

Electrochimica Acta 56 (2011) 2627–2632

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

56 (2011)

Subjek

PSEUDOKAPASITOR

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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