The integrated approach to studying the microstructure of de-alloyed PtCu/C electrocatalysts for PEMFCs
Publication type: Journal Article
Publication date: 2023-09-01
scimago Q1
wos Q1
SJR: 1.310
CiteScore: 13.4
Impact factor: 6.9
ISSN: 01694332, 18735584
Surfaces, Coatings and Films
General Chemistry
General Physics and Astronomy
Condensed Matter Physics
Surfaces and Interfaces
Abstract
The PtCu NPs supported on carbon have been synthesized using a unique one-pot gradient synthesis approach. The facile acid treatment has been conducted to obtain the de-alloyed structure of NPs. The de-alloyed catalysts have exhibited the 3 times higher ORR activity in TF-RDE compared to the commercial Pt/C analog (the 20% loading, Johnson Matthey). The composition and structure have been estimated by the XRF, XRD, EDX, TEM, and STEM methods. The synchrotron experimental data have been processed using spherical harmonics, which has allowed modeling the particles with a nonuniform distribution of the alloy components over the depth. The integrated approach to studying the NPs’ structure has allowed for the explanation of a higher activity of the NPs with a complex structure. The materials presented may become novel commercial catalysts for PEMFCs. The gram-scale method to obtain the catalyst in the amount of 1 g, which should maintain its structural and electrochemical characteristics, has also been proposed.
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14
Total citations:
14
Citations from 2024:
13
(92.86%)
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Alekseenko A. A. et al. The integrated approach to studying the microstructure of de-alloyed PtCu/C electrocatalysts for PEMFCs // Applied Surface Science. 2023. Vol. 631. p. 157539.
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Alekseenko A. A., Pavlets A., Mikheykin A. S., Belenov S., Guterman V. E. The integrated approach to studying the microstructure of de-alloyed PtCu/C electrocatalysts for PEMFCs // Applied Surface Science. 2023. Vol. 631. p. 157539.
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TY - JOUR
DO - 10.1016/j.apsusc.2023.157539
UR - https://doi.org/10.1016/j.apsusc.2023.157539
TI - The integrated approach to studying the microstructure of de-alloyed PtCu/C electrocatalysts for PEMFCs
T2 - Applied Surface Science
AU - Alekseenko, A. A.
AU - Pavlets, Angelina
AU - Mikheykin, A. S.
AU - Belenov, Sergey
AU - Guterman, V. E.
PY - 2023
DA - 2023/09/01
PB - Elsevier
SP - 157539
VL - 631
SN - 0169-4332
SN - 1873-5584
ER -
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@article{2023_Alekseenko,
author = {A. A. Alekseenko and Angelina Pavlets and A. S. Mikheykin and Sergey Belenov and V. E. Guterman},
title = {The integrated approach to studying the microstructure of de-alloyed PtCu/C electrocatalysts for PEMFCs},
journal = {Applied Surface Science},
year = {2023},
volume = {631},
publisher = {Elsevier},
month = {sep},
url = {https://doi.org/10.1016/j.apsusc.2023.157539},
pages = {157539},
doi = {10.1016/j.apsusc.2023.157539}
}