Preparation, Testing and Application of Amalgam Screen-Printed Electrodes

0549165 - ÚFCH JH 2024 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Josypčuk, Bohdan - Langmaier, Jan - Tvorynska, Sofiia
Preparation, Testing and Application of Amalgam Screen-Printed Electrodes.
Sborník přednášek mezinárodní odborné konference XL. Moderní Elektrochemické Metody. Ústí nad Labem: Best Servis, 2021 - (Navrátil, T.; Fojta, M.; Schwarzová, K.), s. 117-121. ISBN 978-80-905221-8-3.
[Moderní Elektrochemické Metody /40./. Jetřichovice (CZ), 08.11.2021-12.11.2021]
Grant CEP: GA ČR(CZ) GA20-07350S
Institucionální podpora: RVO:61388955
Klíčová slova: electrochemistry * screen-printed electrodes * silver amalgam
Obor OECD: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Silver amalgam screen-printed electrodes (AgA-SPEs) were designed, prepared, and tested for
the first time as perspective representatives among SPEs for measuring at high negative
potentials. The precise coulometric preparation procedure for mercury deposition at the
working electrode surface of the commercial silver-SPE was developed. An optimal
electrolyzer construction for the mercury deposition, electrolyte composition, and electrolysis
conditions were proposed. The maximum value of hydrogen overvoltage (-1979 ± 4 mV) was
found on AgA-SPE with 50% (w/w) of Hg content in 0.1 mol L-1 NaOH, which is more negative
than with the original silver-SPE for 387 mV (-1592 ± 12 mV).
Trvalý link: http://hdl.handle.net/11104/0325179