كليدواژه :
Glucose oxidation reaction , Body media , Gold , Platinum electrocatalyst.
چكيده فارسي :
Nowadays, glucose oxidation reaction has attracted myriads of scientists, as for its performance in biofuel cells. In as much as the specific conditions of the living organisms body make the possibility of utilizing a catalyst face with many ordeals, catalysts must not be harmful to the body. Accordingly, the present study emphasizes the exploit of safe and non-toxic metals; in consequence, the results could be used in living organisms body. In the present study, a gold substrate is used as an electrode in glucose electro-oxidation reaction. Platinum as electrocatalyst is used at this work. For preparing modified electrode, cyclic voltammetry (CV) is carried out from -0.2 to 0.5 V versus the saturated calomel electrode (SCE) at a scan rate of 10 mVs-1 for electrodeposition of platinum as simple technique. The working electrode is designed to examine the glucose oxidation reaction in the body media using electrochemical techniques such as cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The results demonstrating the prepared electrode has favorable performance for glucose oxidation reaction in neutral media. The results of the cyclic voltammetry representing the glucose oxidation reaction is executed on the electrode surface based on related peaks in CV diagram. Besides, linear sweep voltammetry data (-1 to 0.2 V versus SCE and at a scan rate of 1 mVs-1 ) shows that glucose oxidation reaction, with a relatively fast kinetics, is carried out on the optimized electrode with the current density of 0.367 mA cm-2 at -0.158 V versus SCE. This issue is further discussed in this article.
