Influence of the laser irradiation on the electrochemical and spectroscopic peculiarities of graphene-chitosan composite film

被引：24

作者：

Celiesiute, Raimonda ^{[1
]}

Trusovas, Romualdas ^{[1
,2
]}

Niaura, Gediminas ^{[3
]}

Svedas, Vitas ^{[4
]}

Raciukaitis, Gediminas ^{[2
]}

Ruzele, Zivile ^{[1
]}

Pauliukaite, Rasa ^{[1
]}

机构：

[1] Ctr Phys Sci & Technol, Dept Nanoengn, Savanoriu Ave 231, LT-02300 Vilnius, Lithuania

[2] Ctr Phys Sci & Technol, Dept Laser Technol, LT-02300 Vilnius, Lithuania

[3] Ctr Phys Sci & Technol, Dept Organ Chem, LT-01108 Vilnius, Lithuania

[4] Ctr Phys Sci & Technol, Lab Appl IR Spect, LT-02300 Vilnius, Lithuania

来源：

ELECTROCHIMICA ACTA | 2014年 / 132卷

关键词：

Graphene; Chitosan; Laser irradiation; Electrochemical impedance spectroscopy; Raman spectroscopy; RAMAN-SPECTROSCOPY; GRAPHITE; OXIDE; ELECTRODES; DISPERSION; REDUCTION; DISORDER; DEFECTS; SENSORS;

D O I：

10.1016/j.electacta.2014.03.137

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Activation of the chitosan-modified graphene cast on indium-tin-oxide electrodes was performed with laser irradiation. The composite electrodes were characterised spectroscopically and electrochemically applying Fourier transform infrared and Raman spectroscopies, cyclic voltammetry and electrochemical impedance spectroscopy, respectively. Significant rise in the double-layer capacitance was obtained after the laser irradiation of the modified graphene film formed from its dispersion in chitosan solution. Effect of the laser irradiation depended on a load of the modified graphene in the film. The laser treatment improved electrochemical properties of the electrodes made of the modified chitosan-graphene-film due to creation of edge defects and formation of nanocrystalline structures from graphene flakes. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：265 / 276

页数：12