Applied Catalysis B: Environmental, volume 226, pages 608-615
Application of CO atmosphere in the liquid phase synthesis as a universal way to control the microstructure and electrochemical performance of Pt/C electrocatalysts
Alekseenko A. A.
1
,
Ashihina Evgenia A
1
,
Shpanko Svetlana P
1
,
Volochaev V.A
1
,
Safronenko Olga I
1
,
Publication type: Journal Article
Publication date: 2018-06-01
Journal:
Applied Catalysis B: Environmental
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 22.1
ISSN: 09263373, 18733883
Catalysis
Process Chemistry and Technology
General Environmental Science
Abstract
A number of new platinum-based catalysts with Pt loading from 15.2% to 17.3% was obtained by wet chemical synthesis. Ethylene glycol, formaldehyde, and formic acid were used as reducing agents. The synthesis was performed both at ambient conditions and when the solution was saturated with carbon monoxide. It was shown that the catalysts obtained in the CO environment possess a larger electrochemical active surface area (EСSA), 140–146 m2 g−1 (Pt), compared to the analogues that have been made at ambient conditions, 72–120 m2 g−1(Pt). This could be explained by a smaller platinum NPs average size as well as a very narrow distribution of their size. In contrast to the materials synthesized at ambient conditions, the ECSA values of the catalysts, obtained in the CO-saturated media, in fact, do not depend on the type of reducing agent and the synthesis conditions. Such catalysts demonstrate the best mass-activity in ORR, which is higher than that of the commercial Pt/C catalyst HiSPEC 3000 (20% of Pt loading) and the analogues obtained at ambient conditions. Distinctive features of the nanoparticles nucleation/growth and their structure were determined and studied when formic acid was applied as a reducing agent. Absorption processes of the CO molecules on the surface of platinum nuclei are a plausible explanation for the CO influence on nucleation/growth and, therefore, on the microstructure and EСSA, as well as other functional characteristics of Pt/C-catalysts.
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- We do not take into account publications that without a DOI.
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- Statistics recalculated weekly.
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Alekseenko A. A. et al. Application of CO atmosphere in the liquid phase synthesis as a universal way to control the microstructure and electrochemical performance of Pt/C electrocatalysts // Applied Catalysis B: Environmental. 2018. Vol. 226. pp. 608-615.
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Alekseenko A. A., Ashihina E. A., Shpanko S. P., Volochaev V., Safronenko O. I., Guterman V. E. Application of CO atmosphere in the liquid phase synthesis as a universal way to control the microstructure and electrochemical performance of Pt/C electrocatalysts // Applied Catalysis B: Environmental. 2018. Vol. 226. pp. 608-615.
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TY - JOUR
DO - 10.1016/j.apcatb.2018.01.013
UR - https://doi.org/10.1016%2Fj.apcatb.2018.01.013
TI - Application of CO atmosphere in the liquid phase synthesis as a universal way to control the microstructure and electrochemical performance of Pt/C electrocatalysts
T2 - Applied Catalysis B: Environmental
AU - Alekseenko, A. A.
AU - Ashihina, Evgenia A
AU - Shpanko, Svetlana P
AU - Volochaev, V.A
AU - Safronenko, Olga I
AU - Guterman, V. E.
PY - 2018
DA - 2018/06/01 00:00:00
PB - Elsevier
SP - 608-615
VL - 226
SN - 0926-3373
SN - 1873-3883
ER -
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@article{2018_Alekseenko,
author = {A. A. Alekseenko and Evgenia A Ashihina and Svetlana P Shpanko and V.A Volochaev and Olga I Safronenko and V. E. Guterman},
title = {Application of CO atmosphere in the liquid phase synthesis as a universal way to control the microstructure and electrochemical performance of Pt/C electrocatalysts},
journal = {Applied Catalysis B: Environmental},
year = {2018},
volume = {226},
publisher = {Elsevier},
month = {jun},
url = {https://doi.org/10.1016%2Fj.apcatb.2018.01.013},
pages = {608--615},
doi = {10.1016/j.apcatb.2018.01.013}
}