The effect of thermal treatment on the atomic structure of core–shell PtCu nanoparticles in PtCu/C electrocatalysts
V V Pryadchenko
1
,
S V Belenov
1
,
D B Shemet
1
,
V A Volochaev
1
,
V V Srabionyan
1
,
L A Avakyan
1
,
N. Yu. Tabachkova,
2
,
V E Guterman
1
,
L A Bugaev
1
Тип публикации: Journal Article
Дата публикации: 2017-08-24
scimago Q4
wos Q3
БС2
SJR: 0.183
CiteScore: 1.4
Impact factor: 1.8
ISSN: 10637834, 10906460, 17267498
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Краткое описание
PtCu/C electrocatalysts with bimetallic PtCu nanoparticles were synthesized by successive chemical reduction of Cu2+ and Pt(IV) in a carbon suspension prepared based on an aqueous ethylene glycol solution. The atomic structure of as-prepared PtCu nanoparticles and nanoparticles subjected to thermal treatment at 350°C was examined using PtL3 and CuK EXAFS spectra, transmission electron microscopy (TEM), and X-ray powder diffraction (XRD). The results of joint analysis of TEM microphotographs, XRD profiles, and EXAFS spectra suggest that the synthesized electrocatalysts contain PtCu nanoparticles with a Cu core–Pt shell structure and copper oxides Cu2O and CuO. Thermal treatment of electrocatalysts at 350°C results in partial reduction of copper oxides and fusion of bimetallic nanoparticles with the formation of both homogeneous and ordered PtCu solid solutions.
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Pryadchenko V. V. et al. The effect of thermal treatment on the atomic structure of core–shell PtCu nanoparticles in PtCu/C electrocatalysts // Physics of the Solid State. 2017. Vol. 59. No. 8. pp. 1666-1673.
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Pryadchenko V. V., Belenov S. V., Shemet D. B., Volochaev V. A., Srabionyan V. V., Avakyan L. A., Tabachkova, N. Y., Guterman V. E., Bugaev L. A. The effect of thermal treatment on the atomic structure of core–shell PtCu nanoparticles in PtCu/C electrocatalysts // Physics of the Solid State. 2017. Vol. 59. No. 8. pp. 1666-1673.
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TY - JOUR
DO - 10.1134/S1063783417080200
UR - https://doi.org/10.1134/S1063783417080200
TI - The effect of thermal treatment on the atomic structure of core–shell PtCu nanoparticles in PtCu/C electrocatalysts
T2 - Physics of the Solid State
AU - Pryadchenko, V V
AU - Belenov, S V
AU - Shemet, D B
AU - Volochaev, V A
AU - Srabionyan, V V
AU - Avakyan, L A
AU - Tabachkova,, N. Yu.
AU - Guterman, V E
AU - Bugaev, L A
PY - 2017
DA - 2017/08/24
PB - Pleiades Publishing
SP - 1666-1673
IS - 8
VL - 59
SN - 1063-7834
SN - 1090-6460
SN - 1726-7498
ER -
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@article{2017_Pryadchenko,
author = {V V Pryadchenko and S V Belenov and D B Shemet and V A Volochaev and V V Srabionyan and L A Avakyan and N. Yu. Tabachkova, and V E Guterman and L A Bugaev},
title = {The effect of thermal treatment on the atomic structure of core–shell PtCu nanoparticles in PtCu/C electrocatalysts},
journal = {Physics of the Solid State},
year = {2017},
volume = {59},
publisher = {Pleiades Publishing},
month = {aug},
url = {https://doi.org/10.1134/S1063783417080200},
number = {8},
pages = {1666--1673},
doi = {10.1134/S1063783417080200}
}
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MLA
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Pryadchenko, V. V., et al. “The effect of thermal treatment on the atomic structure of core–shell PtCu nanoparticles in PtCu/C electrocatalysts.” Physics of the Solid State, vol. 59, no. 8, Aug. 2017, pp. 1666-1673. https://doi.org/10.1134/S1063783417080200.