Synthesis of Palladium–Polypyrrole Nanocomposite
and Its Electrocatalytic Properties in the Oxidation of Formaldehyde
K. V. Gor’kova, b, *, E. V. Zolotukhinaa, b, c, E. R. Mustafinab, and M. A. Vorotyntseva, b, c, d
Translated by L. Smolina
aInstitute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia
bFaculty of Fundamental Physical and Chemical Engineering, Moscow State University, Moscow, 119992 Russia
cMendeleev University of Chemical Technology of Russia, Moscow, 125047 Russia
dInstitute of Molecular Chemistry, Université de Bourgogne, Dijon, France
Correspondence to: *e-mail: gorkovk@yandex.ru
Received 20 February, 2016
Abstract—Three alternative methods were developed for the synthesis of modifying palladium–polypyrrole layers on the surface of an inert electrode. Their electrocatalytic activity toward formaldehyde under inert atmosphere was checked. All the suggested methods are one-stage and allow synthesis of a film on the electrode surface from a solution containing a palladium salt and pyrrole in the absence of other active reagents. The electrochemical methods (potentiodynamic and double cathodic and anodic pulses techniques) in an aqueous medium give films with poorly reproducible electrocatalytic properties, while the chemical redox synthesis affords films with reproducibly high electroactivity toward methylene glycolate.
Keywords: one-stage synthesis, modified electrodes, nanocomposites, palladium, polypyrrole, electrooxidation, formaldehyde, amperometric sensors
DOI: 10.1134/S1023193517010074