Electro-Oxidation of Glucose in Alkaline Media on Graphene Sheets Decorated with Gold Nanoparticles

Abstract

In this study the catalytic properties of gold nanoparticles in electro-oxidation process of glucose, were investigated, taking into account, an influence of catalyst composition. Graphene oxide was applied and for electro-oxidation studies of glucose, cyclic voltamperometry was used. It was found that an application of graphene oxide sheets during catalyst synthesis have an influence on gold nanoparticles (AuNPs) size and size distribution. It was confirmed that the application of composite catalyst consisting of graphane-AuNPs significantly changes electro-oxidation of glucose shifting the potential of oxidation to higher positive values and increasing oxidation current.

Linking the Gold Nanoparticles Formation Kinetics with Their Morphology

“…Obtained results show lattice fringes with separations of 2.25 Å, which corresponds to the lattice spacing of (111). This value is very close to 2.35 Å given in the literature . In accordance with Wang and Qi , this difference is about 5% and can be explained by the particle's shape.…”

The influence of the route of administration of gold nanoparticles on their tissue distribution and basic biochemical parameters: In vivo studies

“…This size reduction results in interesting properties, such as electromagnetic, optical [2], physical, chemical and catalytic activities [3] which depend on particle diameter and shape. Gold nanoparticles (AuNPs) currently play a significant role in clinical diagnosis and several other biomedical applications.…”

Electrochemical Deposition of Ruthenium and Cobalt-Ruthenium Alloys From Acidic Chloride Ions Containing Baths

“…Catalytic properties of materials are analysed in a nanoscale, e.g. nanoparticles of precious metals in processes of electro-oxidation of glucose, designated for fuel cells [12][13] For example the Tropsch-Fischer synthesis uses cobalt oxides and irons deposited on alumina matrix of highly developed surface as the catalytically active material [14][15][16][17]. Cobalt catalysers of the latest generation feature in their composition a slight addition of ruthenium [18] introduced in the form of nanoparticles, which allows a local increase of gaseous CO concentration as a result of its strong adsorption on its surface.…”