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Effect of substrate hydrophobicity on the electrocatalytic behaviour of phthalocyanine
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SYSNO ASEP 0470880 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Effect of substrate hydrophobicity on the electrocatalytic behaviour of phthalocyanine Author(s) Klusáčková, Monika (UFCH-W) RID, ORCID
Janda, Pavel (UFCH-W) RID, ORCID
Tarábková, Hana (UFCH-W) RID, ORCIDSource Title Proceedings of the 12th International students conference Modern Analytical Chemistry. - Praha : VŠCHT, 2016 / Nesměrák K. - ISBN 978-80-7444-044-1 Pages s. 122-126 Number of pages 5 s. Publication form Print - P Action ISC Modern Analytical Chemistry /12./ Event date 22.09.2016 - 23.09.2016 VEvent location Prague Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords atomic force microscopy ; cyclic voltammetry ; electrocatalysis Subject RIV CG - Electrochemistry R&D Projects GA14-14696S GA ČR - Czech Science Foundation (CSF) Institutional support UFCH-W - RVO:61388955 UT WOS 000391253800023 Annotation In this work, the electrocatalytic activity of pyridinoporphyrazine mediator deposited on two substrates with different hydrophobicity has been presented. We focused on hydrophobic highly oriented pyrolytic graphite (HOPG) as well as hydrophilic annealed gold electrode (Au111). The immobilization of mediator has been carried out spontaneous adsorption from aqueous solution on electrode surfaces. The different hydrophobicity surface resulted in change the electrocatalytic activities of mediator to hydrogen in aqueous solution. For this purpose, electrochemical, in situ spectroelectrochemical, and ex situ microscopically characterizations have been performed. The detailed comparison of surface morphology, surface coverage, surface roughness parameters, thickness of deposited layers of mediator, and pH solution has been studied. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2017
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