Silver and Platinum Modified Carbon Fiber Microelectrodes Coated with Nafion for Hydrogen Peroxide Determination

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Authors

HALOUZKA Vladimír JAKUBEC Petr HRBÁČ Jan TRNKOVÁ Libuše

Year of publication 2013
Type Article in Proceedings
Conference 64th Annual Meeting of International Socierty of Electrochemistry
MU Faculty or unit

Faculty of Science

Citation
Field Physical chemistry and theoretical chemistry
Keywords carbon fiber microelectrodes; Nafion layer; silver nanoparticles; H2O2 sensor
Description Carbon fiber microelectrodes equipped with nanostructured metals (platinum and silver) and covered with a Nafion layer constitute sensitive H2O2 sensors. Metallic layers on carbon fibers were prepared by surfactant assisted electrodeposition. In the case of silver, the procedure leads to coating which is composed of porous, partially aggregated and crystalline deposits containing silver nanoparticles. The electrodeposition of platinum leads to carbon fiber decorated with clusters of platinum nanoparticles. After coating the electrodes with protective and antiinterference barrier made of Nafion, the sensing properties of the prepared microelectrodes towards hydrogen peroxide are investigated.
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