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Cyclic voltammetric deposition of hydrous ruthenium oxide for electrochemical supercapacitors: effects of the chloride precursor transformation

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Abstract
Ruthenium chloride and iridium chloride precursors (denoted hereafter as RuCl3
aH2O and IrCl3
bH2O) reacted with water molecules and transformed into the chloro-oxy-hydroxyl-metal (denoted as Ru(OH)dCl3d
cH2O and Ir(OH)oCl3o
dH2O) structures when they were dissolved in water. The storage time, preheating, and initial pH of the deposition baths were demonstrated to significantly influence the structures of these dissolved precursors. The rate of hydrous oxide deposition by means of cyclic voltammetry was predominantly determined by the structures of the dissolved precursors and the initial pH of the deposition bath, which also caused a variation in the performance (i.e. specific capacitance) of the hydrous oxides (i.e. RuOx
nH2O and (Ru þ Ir)Oy
mH2O) for the application of electrochemical supercapacitors.
Keywords: Structural transformation; Hydrous ruthenium–iridium oxides; Cyclic voltammetry; Electrochemical supercapacitor; Pseudocapacitance

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Informasi Detail

Judul Seri

Journal of Power Sources

No. Panggil

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Penerbit

: Elsevier Science B.V.., 2002

Deskripsi Fisik

Journal of Power Sources 112 (2002) 401–409

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

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

yuli/agus

Versi lain/terkait

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