Effect of the Dispersing Agent on the Electrochemical Response of Glassy Carbon Electrodes Modified with Dispersions of Carbon Nanotubes

被引：12

作者：

Gonzalez-Segura, Karina ^{[2
]}

Canete-Rosales, Paulina ^{[2
]}

del Rio, Rodrigo ^{[1
]}

Yanez, Claudia ^{[2
]}

Ferreyra, Nancy F. ^{[1
]}

Rivas, Gustavo A. ^{[1
]}

Bollo, Soledad ^{[2
]}

机构：

[1] Univ Nacl Cordoba, Fac Ciencias Quim, INFIQC, Dept Quim Fis, Ciudad Univ, RA-5000 Cordoba, Argentina

[2] Univ Chile, Fac Ciencias Quim & Farmaceut, Lab Bioelectroquim, Santiago, Chile

来源：

ELECTROANALYSIS | 2012年 / 24卷 / 12期

关键词：

Carbon nanotubes; Scanning electrochemical microscopy; Chitosan; Nafion; Hydrogen peroxide sensors; MICROSCOPY; REDUCTION;

D O I：

10.1002/elan.201200505

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The electrochemical response of a glassy carbon electrode modified with carbon nanotubes (CNT) dispersed in two solvents, water and DMF, and two polymers, chitosan and Nafion is reported. The films were homogeneous when the dispersing agent was water or DMF. In the case of polymers, the surfaces present areas with different density of CNTs. A more sensitive electrochemical response was obtained when CNTs are dispersed in the solvents. In the case of CNT dispersed with polymers, the nature of the polymer demonstrated to be a critical parameter not only for dispersing the nanotubes but also for the electrochemical activity of the resulting electrodes.

引用

页码：2317 / 2323

页数：7

共 32 条

[21] New biosensing platforms based on the layer-by-layer self-assembling of polyelectrolytes on Nafion/carbon nanotubes-coated glassy carbon electrodes [J].

Rivas, Gustavo A. ;

Miscoria, Silvia A. ;

Desbrieres, Jacques ;

Barrera, Gustavo D. .

TALANTA, 2007, 71 (01) :270-275

[22] Dispersion of multi-wall carbon nanotubes in polyethylenimine: A new alternative for preparing electrochemical sensors [J].

Rubianes, Maria D. ;

Rivas, Gustavo A. .

ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (03) :480-484

[23] Carbon nanotubes paste electrode [J].

Rubianes, MD ;

Rivas, GA .

ELECTROCHEMISTRY COMMUNICATIONS, 2003, 5 (08) :689-694

[24] Emerging Applications of Carbon Nanotubes [J].

Schnorr, Jan M. ;

Swager, Timothy M. .

CHEMISTRY OF MATERIALS, 2011, 23 (03) :646-657

[25] Chemistry of carbon nanotubes [J].

Tasis, D ;

Tagmatarchis, N ;

Bianco, A ;

Prato, M .

CHEMICAL REVIEWS, 2006, 106 (03) :1105-1136

[26] Dispersion of single walled. carbon nanotubes. Comparison of different dispersing strategies for preparation of modified electrodes toward hydrogen peroxide detection [J].

Tkac, Jan ;

Ruzgas, Tautgirdas .

ELECTROCHEMISTRY COMMUNICATIONS, 2006, 8 (05) :899-903

[27] Advances in carbon nanotube based electrochemical sensors for bioanalytical applications [J].

Vashist, Sandeep Kumar ;

Zheng, Dan ;

Al-Rubeaan, Khalid ;

Luong, John H. T. ;

Sheu, Fwu-Shan .

BIOTECHNOLOGY ADVANCES, 2011, 29 (02) :169-188

[28] Solubilization of carbon nanotubes by Nafion toward the preparation of amperometric biosensors [J].

Wang, J ;

Musameh, M ;

Lin, YH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (09) :2408-2409

[29] SCANNING ELECTROCHEMICAL MICROSCOPY .7. EFFECT OF HETEROGENEOUS ELECTRON-TRANSFER RATE AT THE SUBSTRATE ON THE TIP FEEDBACK CURRENT [J].

WIPF, DO ;

BARD, AJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (02) :469-474

[30] EFFECTS OF ADSORPTION OF ELECTROACTIVE SPECIES IN STATIONARY ELECTRODE POLAROGRAPHY [J].

WOPSCHALL, RH ;

SHAIN, I .

ANALYTICAL CHEMISTRY, 1967, 39 (13) :1514-+

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