INFLUENCE OF MALEIC ACID ON THE COMPOSITION AND STRUCTURE OF ORGANOCOPPER DISPERSIONS OBTAINED BY CHEMICAL AND ELECTROCHEMICAL REDUCTION OF Cu2+-IONS

Authors

  • Viktor F. Vargalyuk Oles Honchar Dnipro National University
  • Volodymyr A. Polonskyy Днипровский национальный университет имени Олеся Гончара
  • Yevhen S. Osokin Днипровский национальный университет имени Олеся Гончара
  • Arina Y. Skok Днипровский национальный университет имени Олеся Гончара

DOI:

https://doi.org/10.15421/082025

Keywords:

copper microdispersion, zinc cementation, electrochemical deposition, maleic acid

Abstract

Using chemical (zinc cementation) and electrochemical (cathodic deposition on titanium nitride) methods, copper microdispersions were obtained in the presence of maleic acid in an acidic solution CuSO4. It was complexonometrically established that electrochemically obtained copper powders are characterized by a high metal content (97.9 wt. %) and a small amount of non-metallic inclusions has been determined. But their dispersion under the action of maleic acid increases by an order of magnitude. The metal content is reduced to 39.7 wt. % in chemically obtained powders. The elemental composition of particles (wt. %) has been determined by energy-dispersive x-ray spectroscopy: C – 9.35, O – 25.76, Cu – 64.90. The presence of complexed water in the organometallic dispersion has been thermogravimetrically proved. These data, combined with the data of IR spectroscopy, led to the conclusion that the main component of the organometallic dispersion is the complex [Cu(C4H3O4)(H2O)2].

Author Biographies

Viktor F. Vargalyuk, Oles Honchar Dnipro National University

Декан химического факультета

Volodymyr A. Polonskyy, Днипровский национальный университет имени Олеся Гончара

Доцент

Yevhen S. Osokin, Днипровский национальный университет имени Олеся Гончара

Аспірант

Arina Y. Skok, Днипровский национальный университет имени Олеся Гончара

Студент

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Published

2021-01-10

Issue

Section

Physical and inorganic chemistry