Synthesis of PtCu/С Electrocatalysts with Different Structures and Study of Their Functional Characteristics


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PtCu/C electrocatalysts with similar compositions but different distributions of components in bimetallic nanoparticles were obtained by simultaneous and sequential reduction of copper(II) and platinum( IV) in a carbon suspension. The catalyst obtained by multistage synthesis while sequentially increasing the Pt(IV) concentration in the precursor solution added at each stage showed the highest stability and activity in oxygen electroreduction in acidic media. This catalyst was least liable to selective dissolution of copper during its operation. The influence of the architecture of bimetallic PtCu nanoparticles on the electrochemical behavior of the catalysts is due to the peculiarities of the structure rearrangement of nanoparticles during the enrichment of the protective surface layer with platinum.

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S. Belenov

Faculty of Chemistry and Institute of Physics

编辑信件的主要联系方式.
Email: serg1986chem@mail.ru
俄罗斯联邦, Rostov-on-Don, 344090

V. Guterman

Faculty of Chemistry and Institute of Physics

Email: serg1986chem@mail.ru
俄罗斯联邦, Rostov-on-Don, 344090

N. Tabachkova

National University of Science and Technology MISiS

Email: serg1986chem@mail.ru
俄罗斯联邦, Moscow, 119991

E. Moguchikh

Faculty of Chemistry and Institute of Physics

Email: serg1986chem@mail.ru
俄罗斯联邦, Rostov-on-Don, 344090

A. Alekseenko

Faculty of Chemistry and Institute of Physics

Email: serg1986chem@mail.ru
俄罗斯联邦, Rostov-on-Don, 344090

V. Volochaev

Faculty of Chemistry and Institute of Physics

Email: serg1986chem@mail.ru
俄罗斯联邦, Rostov-on-Don, 344090

N. Novikovskiy

Faculty of Chemistry and Institute of Physics

Email: serg1986chem@mail.ru
俄罗斯联邦, Rostov-on-Don, 344090

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