Synthesis of PtCu/С Electrocatalysts with Different Structures and Study of Their Functional Characteristics
- Autores: Belenov S.V.1, Guterman V.E.1, Tabachkova N.Y.2, Moguchikh E.A.1, Alekseenko A.A.1, Volochaev V.A.1, Novikovskiy N.M.1
-
Afiliações:
- Faculty of Chemistry and Institute of Physics
- National University of Science and Technology MISiS
- Edição: Volume 54, Nº 12 (2018)
- Páginas: 1209-1221
- Seção: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/190313
- DOI: https://doi.org/10.1134/S1023193518130062
- ID: 190313
Citar
Resumo
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.
Sobre autores
S. Belenov
Faculty of Chemistry and Institute of Physics
Autor responsável pela correspondência
Email: serg1986chem@mail.ru
Rússia, Rostov-on-Don, 344090
V. Guterman
Faculty of Chemistry and Institute of Physics
Email: serg1986chem@mail.ru
Rússia, Rostov-on-Don, 344090
N. Tabachkova
National University of Science and Technology MISiS
Email: serg1986chem@mail.ru
Rússia, Moscow, 119991
E. Moguchikh
Faculty of Chemistry and Institute of Physics
Email: serg1986chem@mail.ru
Rússia, Rostov-on-Don, 344090
A. Alekseenko
Faculty of Chemistry and Institute of Physics
Email: serg1986chem@mail.ru
Rússia, Rostov-on-Don, 344090
V. Volochaev
Faculty of Chemistry and Institute of Physics
Email: serg1986chem@mail.ru
Rússia, Rostov-on-Don, 344090
N. Novikovskiy
Faculty of Chemistry and Institute of Physics
Email: serg1986chem@mail.ru
Rússia, Rostov-on-Don, 344090
Arquivos suplementares
