Crystallic silver amalgam – a novel electrode material

0363002 - ÚFCH JH 2012 RIV GB eng J - Journal Article
Daňhel, A. - Mansfeldová, Věra - Janda, Pavel - Vyskočil, V. - Barek, J.
Crystallic silver amalgam – a novel electrode material.
Analyst. Roč. 136, č. 118 (2011), s. 36563662. ISSN 0003-2654. E-ISSN 1364-5528
Institutional research plan: CEZ:AV0Z40400503
Keywords : crystallic silver amalgam * electrode materials * electrochemistry
Subject RIV: CG - Electrochemistry
Impact factor: 4.230, year: 2011

A crystallic silver amalgam was found to be a suitable working electrode material for voltammetric determination of electrochemically reducible organic nitro-compounds. Optimum conditions for crystal growth were found, the crystal surface was investigated by atomic force microscopy in tapping mode and single crystals were used for the preparation of quasi-cylindrical single crystal silver amalgam electrode (CAgAE). An electrochemical behavior of this alternative electrode material was investigated in aqueous media by direct current voltammetry, cyclic voltammetry (CV), differential pulse voltammetry (DPV) and adsorptive stripping voltammetry (AdSV) using 4-nitrophenol as a model compound. Applicable potential windows of the CAgAE were found comparable with those obtained at a hanging mercury drop electrode, providing high hydrogen overpotential, and polished silver solid amalgam electrode.
Permanent Link: http://hdl.handle.net/11104/0199144