Kinetics of Complex Double Salts [Co(A)3][Fe(C2O4)3]∙xH2O (A=2NH3, En (Ethylenediamine))

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Abstract
Complex compounds are under close scrutiny by scientists as precursors, which are needed to produce functional materials. When the thermolysis method of double complex salts is used on an industrial scale, the most detailed information on the thermal decomposition, including the kinetics of decomposition, is required. The kinetics of pyrolysis, solid, and gaseous products of [Co(NH3)6][Fe(C2O4)3]∙2H2O (I) and [Co(en)3][Fe(C2O4)3] (II) (en—ethylenediamine) thermolysis were studied in this work. The solid products of thermal decomposition were studied using scanning electron microscopy and elemental analysis, and the specific surface area (8 and 71 m2/g, respectively) was measured. It was determined that a double complex salt (DCS) with a coordinated en has a higher thermal stability than with NH3 due to the chelation effect.
Funding Information
  • Russian Science Foundation (24-29-20076)

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