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Electrochemical investigations of modified polymeric composites
Author(s) -
Darowicki K.,
Janicki S.
Publication year - 2000
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/1521-4176(200012)51:12<835::aid-maco835>3.0.co;2-3
Subject(s) - manganese , chemistry , polymer chemistry , electrochemistry , composite number , graphite , nuclear chemistry , gravimetric analysis , materials science , composite material , electrode , organic chemistry
Prescriptions for manganese dioxide activated conducting polymeric composites have been elaborated. The investigated composites were made from a polyethylene/vinyl acetate base (Elvax 450 from DuPont) and highly conducting carbon black. The composite material was admixed with manganese dioxide activated graphite. Gravimetric, galvanostatic, potentiodynamic and impedance investigations have been carried out of composite polymeric electrodes. It has been shown that the presence of manganese dioxide in the composite improves the potential stability and decreases the oxygen evolution process resistance. An addition of manganese dioxide decreases the anodic consumption of the polymeric composite. The relation of the current density function of the content of manganese dioxide modified graphite has been determined.