ZB 06 - Nanoelectrochemistry (W.Nogala)

Electrocatalytic glucose oxidation at gold and gold-carbon nanoparticulate film prepared from oppositely charged nanoparticles

Author(s): Karczmarczyk, Aleksandra and Celebanska, Anna and Nogala, Wojciech and Sashuk, Volodymyr and Chernyaeva, Olga and Opallo, Marcin
Title: Electrocatalytic glucose oxidation at gold and gold-carbon nanoparticulate film prepared from oppositely charged nanoparticles
Abstract: Electrocatalytic oxidation of glucose was studied at nanoparticulate and gold-carbon film electrodes. These electrodes were prepared by layer-by-layer method without application of any linker molecules. nanoparticles were stabilized by undecane thiols functionalized by ammonium or carboxylate groups, whereas the carbon were covered by phenylsulfonate functionalities. The gold electrodes were characterized by UV-vis and XPS atomic force microscopy and voltammetry, before and after Heat-treatment facilitates the aggregation of the and affects the structure of the film. The comparison of results obtained with film electrodes prepared from gold with the same charge and with gold-carbon nanoparticulate proved that positively charged nanoparticles are responsible the high electrocatalytic activity, whereas negatively charged ones rather as a linker of the film. (C) 2013 Elsevier Ltd. All rights reserved.
Pages: 211-216
Journal: ELECTROCHIMICA ACTA
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Addres: THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Volume: 117
ID: ISI:000332812300029
Year: 2014
DOI: 10.1016/j.electacta.2013.11.049