Functional Materials Based on Manganese Dioxide Deposited
on Carbon Fiber¹

L. A. Zemskova^a, A. V. Voyt^a, N. N. Barinov^b, and T. A. Kaydalova^a

^aInstitute of Chemistry, Far Eastern Branch, Russian Academy of Sciences,
pr. Stoletiya Vladivostoka 159, Vladivostok, 690022 Russia

e-mail: zemskova@ich.dvo.ru

^bFar Eastern Geological Institute, Russian Academy of Sciences,
pr. Stoletiya Vladivostoka 159, Vladivostok, 690022 Russia

Abstract—The composites manganese oxide/carbon fiber are obtained by chemical and electrochemical dep-
osition. The process of electrodeposition was carried out in the presence of tetraalkylammonium cations of neu-
tral SAA Triton X-100 in a potentiostatic regime by oxidating Mn²⁺ salts at +1.0 V (with respect to Ag/AgCl).
Cathodic deposition was carried out in aqueous electrolytes NH₄Cl and KCl and in the presence of polyelec-
trolyte of chitosan with oxidation of the formed precipitates by oxygen in air. The obtained composites are char-
acterized by scanning electron microscopy, X-ray diffraction, and cyclic volt-amperometry techniques. The
mechanism of film formation at the surface of the carbon fiber and the electrochemical properties of the com-
posites are discussed.

DOI: 10.1134/S1087659614010209

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