LEAD PENCIL GRAPHITE AS ELECTRODE MATERIAL: STRUCTURAL AND ELECTROCHEMICAL PROPERTIES
| Authors | |
|---|---|
| Year of publication | 2015 |
| Type | Article in Proceedings |
| Conference | XV. Workshop of Physical Chemists and Electrochemists |
| MU Faculty or unit | |
| Citation | |
| Field | Physical chemistry and theoretical chemistry |
| Keywords | PeGE; scanning electron microscopy; Raman spectroscopy; X- ray photoelectron spectroscopy; xanthine |
| Description | In recent decades, there has been a significant progress in the development of solid electrodes leading to their use as sensors to detect various substances in electrochemical assays. The field of carbon electrodes that attract attention because of the unique structural, mechanical and electrochemical properties is a particular example of this trend [1]. The aim of this work is the structural and electrochemical characterization of several pencil graphite electrodes (PeGE) from different manufacturers in relation to their electrochemical properties. The surface quality affects mainly the adsorption of the species involved in redox reactions and rate of electron transfer. Therefore, PeGEs were compared by using voltammetric methods such as cyclic voltammetry (CV) with other types of graphite electrodes which have different structures [2]. In addition to electrochemical experiments, the composition and structure of the pencil leads were characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, Raman spectroscopy and X-ray photoelectron spectroscopy [3]. |
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