Synthesis and characterization of Ru doped CuO thin films for supercapacitor based on Bronsted acidic ionic liquid

被引：146

作者：

Shaikh, J. S. ^{[1
]}

Pawar, R. C. ^{[1
]}

Devan, R. S. ^{[2
]}

Ma, Y. R. ^{[2
]}

Salvi, P. P. ^{[3
]}

Kolekar, S. S. ^{[3
]}

Patil, P. S. ^{[1
]}

机构：

[1] Shivaji Univ, Dept Phys, Thin Film Mat Lab, Kolhapur 416004, Maharashtra, India

[2] Natl Dong Hwa Univ, Dept Phys, Hualien 97401, Taiwan

[3] Shivaji Univ, Dept Chem, Analyt Res Lab, Kolhapur 416004, Maharashtra, India

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 05期

关键词：

Supercapacitor; Copper oxide (CuO); Bronsted acidic ionic liquid; CARBON; REDUCTION; XPS; COMPLEXES; OXIDATION; ELECTRODE;

D O I：

10.1016/j.electacta.2010.11.046

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The synthesis of nanostructured ruthenium (Ru) doped copper oxide (CuO) thin films by colloidal solution method and ionic liquid are presented. The prepared colloidal solution was spin coated on the stainless steel substrates. The coated films were used to measure the specific capacitance in the task specific Bronsted acidic that is in 3-carboxymethyl-1-methylimidazolium bisulfate [CMIM] [HSO4] ionic liquid (IL). Further, the films were characterized by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), Fourier transform Raman spectroscopy (FT-Raman) and cyclic voltammetry (CV). The Ru doped CuO films exhibit higher specific capacitance, C-sp (C-sp = ratio of average current in CV and a product of scan rate and mass deposited on the film) with the larger potential window as compared to undoped CuO film. The highest C-sp of 406 Fg(-1) was observed for 15 volume percent of Ru doping concentration. This is the first successful step towards development of ecofriendly CuO based supercapacitors in task specific IL synthesized by green technology. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2127 / 2134

页数：8

共 29 条

[1]

[Anonymous], 1999, ELECTROCHEMICAL SUPE

[2] OPTICAL-PROPERTIES OF MANGANESE-DOPED NANOCRYSTALS OF ZNS [J].

BHARGAVA, RN ;

GALLAGHER, D ;

HONG, X ;

NURMIKKO, A .

PHYSICAL REVIEW LETTERS, 1994, 72 (03) :416-419

[3] Control of CuO particle size on SiO2 by spin coating [J].

Brookshier, MA ;

Chusuei, CC ;

Goodman, DW .

LANGMUIR, 1999, 15 (06) :2043-2046

[4] Pseudocapacitive Mechanism of Manganese Oxide in 1-Ethyl-3-methytimidazolium Thiocyanate Ionic Liquid Electrolyte Studied Using X-ray Photoelectron Spectroscopy [J].

Chang, Jeng-Kuei ;

Lee, Ming-Tsung ;

Tsai, Wen-Ta ;

Deng, Ming-Jay ;

Cheng, Hui-Fang ;

Sun, I-Wen .

LANGMUIR, 2009, 25 (19) :11955-11960

[5] Correlation of relative X-ray photoelectron spectroscopy shake-up intensity with CuO particle size [J].

Chusuei, CC ;

Brookshier, MA ;

Goodman, DW .

LANGMUIR, 1999, 15 (08) :2806-2808

[6] Fabrication of copper oxide multilayer nanosheets for supercapacitor application [J].

Dubal, D. P. ;

Dhawale, D. S. ;

Salunkhe, R. R. ;

Jamdade, V. S. ;

Lokhande, C. D. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 492 (1-2) :26-30

[7] XPS and FTIR study of Ru/Al2O3 and Ru/TiO2 catalysts:: Reduction characteristics and interaction with a methane-oxygen mixture [J].

Elmasides, C ;

Kondarides, DI ;

Grünert, W ;

Verykios, XE .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (25) :5227-5239

[8] Supercapacitors based on carbon materials and ionic liquids [J].

Frackowiak, Elzbieta .

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, 2006, 17 (06) :1074-1082

[9] COPPER L2,3 NEAR-EDGE STRUCTURE IN CU2O [J].

HULBERT, SL ;

BUNKER, BA ;

BROWN, FC ;

PIANETTA, P .

PHYSICAL REVIEW B, 1984, 30 (04) :2120-2126

[10] Deposition of Ru and RuO2 thin films employing dicarbonyl bis-diketonate ruthenium complexes as CVD source reagents [J].

Lai, YH ;

Chen, YL ;

Chi, Y ;

Liu, CS ;

Carty, AJ ;

Peng, SM ;

Lee, GH .

JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (08) :1999-2006

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