Colloids and Surfaces A: Physicochemical and Engineering Aspects, volume 630, pages 127525
Nucleation/growth of the platinum nanoparticles under the liquid phase synthesis
Danilenko M. V.
1
,
Pankov I. V.
2
,
Metelitsa A V
,
Paperzh K O
,
Safronenko O I
1
,
Guterman V. E.
1
,
Vetrova E V
,
Vetrova Elena V.
3
,
Publication type: Journal Article
Publication date: 2021-12-01
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 5.2
ISSN: 09277757, 18734359
Colloid and Surface Chemistry
Abstract
The need to reduce platinum content in PEMFC catalyst layers has sparked a new wave of interest in ways to control the microstructure of Pt/C catalysts, which must combine high platinum surface area and activity. A comparative study of platinum nanoparticle nucleation/growth under a liquid-phase synthesis of Pt/C materials, with formaldehyde and formic acid being used as reducing agents, has been carried out. Analysis of the color change in the reaction medium and the in situ spectral-kinetic studies performed with absorption spectroscopy, were used as methods to study the reactions kinetics. The effect of the synthesis temperature on the features of the Pt(IV) reduction stages, nucleation/growth of Pt(0) nanoparticles, as well as on the size of the resulting Pt nanoparticles were studied. The role of the ethylene glycol and its derivatives, formed in the reaction medium at high pH, in the processes of Pt(IV) reduction and in the Pt(0) nanoparticles formation, is shown. The positive effect of the dispersed carbon support on the morphological characteristics of the resulting Pt/C catalysts is demonstrated, with carbon being introduced into the reaction medium in the initial stage of the synthesis. The roles of homogeneous and heterogeneous phase formation in the synthesis of Pt nanoparticles and Pt/C materials in the liquid phase are estimated. • Pt NPs nucleation/growth under a liquid-phase synthesis with formaldehyde and formic acid has been studied. • Analysis of the color change and the in-situ UV–vis studies were used to study the reactions kinetics. • The effect of temperature on the Pt NPs size and Pt/C morphology has been considered too. • The ethylene glycol plays a significant role in the Pt(IV) → Pt x (0) transformation. • C-powder being introduced into the reaction medium in the initial stage of the Pt NPs formation improve Pt/C morphology.
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Elsevier
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Wiley
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- We do not take into account publications that without a DOI.
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Danilenko M. V. et al. Nucleation/growth of the platinum nanoparticles under the liquid phase synthesis // Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2021. Vol. 630. p. 127525.
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Danilenko M. V., Guterman V. E., Vetrova E. V., Metelitsa A. V., Paperzh K. O., Pankov I. V., Safronenko O. I., Vetrova E. V., Metelitsa A. V., Paperzh K. O. Nucleation/growth of the platinum nanoparticles under the liquid phase synthesis // Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2021. Vol. 630. p. 127525.
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TY - JOUR
DO - 10.1016/j.colsurfa.2021.127525
UR - https://doi.org/10.1016%2Fj.colsurfa.2021.127525
TI - Nucleation/growth of the platinum nanoparticles under the liquid phase synthesis
T2 - Colloids and Surfaces A: Physicochemical and Engineering Aspects
AU - Danilenko, M. V.
AU - Guterman, V. E.
AU - Vetrova, E V
AU - Metelitsa, A V
AU - Paperzh, K O
AU - Pankov, I. V.
AU - Safronenko, O I
AU - Vetrova, Elena V.
AU - Metelitsa, Anatoly V.
AU - Paperzh, K. O.
PY - 2021
DA - 2021/12/01 00:00:00
PB - Elsevier
SP - 127525
VL - 630
SN - 0927-7757
SN - 1873-4359
ER -
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@article{2021_Danilenko,
author = {M. V. Danilenko and V. E. Guterman and E V Vetrova and A V Metelitsa and K O Paperzh and I. V. Pankov and O I Safronenko and Elena V. Vetrova and Anatoly V. Metelitsa and K. O. Paperzh},
title = {Nucleation/growth of the platinum nanoparticles under the liquid phase synthesis},
journal = {Colloids and Surfaces A: Physicochemical and Engineering Aspects},
year = {2021},
volume = {630},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016%2Fj.colsurfa.2021.127525},
pages = {127525},
doi = {10.1016/j.colsurfa.2021.127525}
}