Ramesh, P. ; Bhagyalakshmi, S. ; Sampath, S. (2004) Preparation and physicochemical and electrochemical characterization of exfoliated graphite oxide Journal of Colloid and Interface Science, 274 (1). pp. 95-102. ISSN 0021-9797
Full text not available from this repository.
Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00219...
Related URL: http://dx.doi.org/10.1016/j.jcis.2003.11.030
Abstract
Exfoliated graphite oxide (EGO) is prepared by oxidizing exfoliated graphite (EG) using a mixture of KMnO4/H2SO4. The physicochemical characterization of the EGO has been carried out using FT-Raman, FT-IR, XPS, NMR, and diffraction techniques. Colloidal form of EGO is subsequently prepared by ultrasonicating EGO in water. Thin films of EGO on a glassy carbon/gold surface are formed and the electrochemical and ion exchange properties have been studied using various redox systems such as K4[Fe(CN)6], ascorbic acid, and dopamine. The charge-based adsorption properties can be made use of, to either suppress or catalyze ascorbic acid oxidation. Adsorption and preconcentration of dopamine on the EGO film has been shown to electrocatalyze the oxidation of NADH.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Exfoliated Graphite Oxide; Colloid; Ion Exchange; Adsorption; Electroanalysis; Modified Electrode and Electrostatic Assembly |
| ID Code: | 57345 |
| Deposited On: | 26 Aug 2011 08:03 |
| Last Modified: | 26 Aug 2011 08:03 |
Repository Staff Only: item control page
