Fe-Cu composites preparation using Cu-Zn ferrite and their electrocatalytic application
Vissurkhanova Y.A. Ivanova N.M. Soboleva Y.A. Muldakhmetov Z.M. Abulyaissova L.K. Minaev B.F.
15 February 2023Elsevier B.V.
Materials Letters
2023#333
Fe-Cu composites were synthesized from Cu0,5Zn0,5Fe2O4 ferrite samples prepared using a co-precipitation method without and with a polyvinylpyrrolidone (PVP) followed by heat treatment and electrochemical reduction. The phase constitutions and morphological features of the produced Cu-Zn ferrites and Fe-Cu composites were analyzed. The thermal stability of Cu-Zn-ferrites in the temperature range of 500–900 °C and the effect of the annealing temperature and PVP polymer on the electrochemical reduction were established. The resulting Fe-Cu composites were used as catalysts in the electrohydrogenation of p-nitroaniline. The Fe-Cu composites formed from Cu0,5Zn0,5Fe2O4 + PVP samples exhibited good electrocatalytic activity in this process, increasing the p-nitroaniline hydrogenation rate to 8.2-8.3 mL H2/min compared with 6.6 mL H2/min in its electrochemical reduction. The p-nitroaniline conversion increased to 99–100 % with the selective formation of p-phenylenediamine.
Copper-zinc ferrite , Electrocatalytic hydrogenation , Electrochemical reduction , Fe-Cu composites , Thermal treatment
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Institute of Organic Synthesis and Coal Chemistry, Karaganda, 100000, Kazakhstan
Academician E.A. Buketov Karaganda University, Karaganda, 100024, Kazakhstan
Bohdan Khmelnytsky National University of Cherkasy, Cherkasy, 18031, Ukraine
Institute of Organic Synthesis and Coal Chemistry
Academician E.A. Buketov Karaganda University
Bohdan Khmelnytsky National University of Cherkasy
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