0377571 - ÚFCH JH 2013 RIV CZ eng J - Journal Article
Korshunov, A. - Josypčuk, Bohdan - Heyrovský, Michael
VOLTAMMETRY OF AQUEOUS CHLOROAURIC ACID WITH HANGING MERCURY DROP ELECTRODE.
Collection of Czechoslovak Chemical Communications. Roč. 76, č. 7 (2011), s. 929-936. ISSN 0010-0765
R&D Projects: GA ČR GAP206/11/1638; GA AV ČR IAA400400806; GA MŠMT(CZ) LC06063
Institutional research plan: CEZ:AV0Z40400503
Keywords : aqueous chloauric acid * voltammetry * hanging mercury drop electrode
Subject RIV: CG - Electrochemistry
Impact factor: 1.283, year: 2011

In d.c. voltammetry of dilute aqueous chloroauric acid with hanging mercury drop electrode, when potential scanning proceeds from negative to positive values, a prominent maximum of cathodic current appears on the curve near 0 V. The effect is explained as due to catalytic evolution of hydrogen on the electrode initially covered by adsorbed Au-hydroxidic layer. Once the layer dissolves in the acidic solution during the positive scan, a fast evolution of hydrogen takes place, catalysed by short-lived adsorbed gold particles.
Permanent Link: http://hdl.handle.net/11104/0209692