Open AccessElectrochemical behavior of cobalt silicides in H2SO4 + HF solutions at high anodic potentials
Author(s) -
В. И. Кичигин,
А. B. Shein
Publication year - 2020
Publication title -
vestnik permskogo universiteta. seriâ himiâ
Language(s) - English
Resource type - Journals
ISSN - 2223-1838
DOI - 10.17072/2223-1838-2020-2-200-211
Subject(s) - electrochemistry , cobalt , anode , electrode , materials science , inorganic chemistry , electrical impedance , analytical chemistry (journal) , chemistry , electrical engineering , chromatography , engineering
The voltammetric and impedance characteristics of CoSi2 and Co2Si electrodes were obtained in 0,5 M H2SO4 + x M HF (x = 0,01–0,05) and 0,05 M H2SO4 + 0,01 M HF solutions at the electrode potentials of 1.8 to 3.0 V (nhe). It was shown that the anodic processes on cobalt silicides in H2SO4 + HF solutions involve multiple steps. It is assumed that there are chemical steps in the overall process on Co2Si.