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GARLYYEV, B. KRATZL, K. RÜCK, M. MICHALIČKA, J. FICHTNER, J. MACÁK, J. KRATKY, T. GÜNTHER, S. COKOJA, M. BANDARENKA, A. GAGLIARDI, A. FISCHER, R.
Original Title
Optimizing the Size of Platinum Nanoparticles for Enhanced Mass Activity in the Electrochemical Oxygen Reduction Reaction
Type
journal article in Web of Science
Language
English
Original Abstract
High oxygen reduction (ORR) activity has been for many years considered as the key to many energy applications. Herein, by combining theory and experiment we prepare Pt nanoparticles with optimal size for the efficient ORR in proton-exchange-membrane fuel cells. Optimal nanoparticle sizes are predicted near 1, 2, and 3 nm by computational screening. To corroborate our computational results, we have addressed the challenge of approximately 1 nm sized Pt nanoparticle synthesis with a metal–organic framework (MOF) template approach. The electrocatalyst was characterized by HR-TEM, XPS, and its ORR activity was measured using a rotating disk electrode setup. The observed mass activities (0.870.14 AmgPt 1) are close to the computational prediction (0.99 AmgPt 1). We report the highest to date mass activity among pure Pt catalysts for the ORR within similar size range. The specific and mass activities are twice as high as the Tanaka commercial Pt/C catalysis.
Keywords
mass activity prediction · metal– organic frameworks (MOFs) · oxygen reduction reaction · platinum · size effect
Authors
GARLYYEV, B.; KRATZL, K.; RÜCK, M.; MICHALIČKA, J.; FICHTNER, J.; MACÁK, J.; KRATKY, T.; GÜNTHER, S.; COKOJA, M.; BANDARENKA, A.; GAGLIARDI, A.; FISCHER, R.
Released
8. 7. 2019
ISBN
1433-7851
Periodical
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Year of study
58
Number
28
State
Federal Republic of Germany
Pages from
9596
Pages to
9600
Pages count
5
URL
https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201904492
BibTex
@article{BUT157324, author="Batyr {Garlyyev} and Kathrin {Kratzl} and Marlon {Rück} and Jan {Michalička} and Johannes {Fichtner} and Jan {Macák} and Tim {Kratky} and Sebastian {Günther} and Mirza {Cokoja} and Aliaksandr S. {Bandarenka} and Alessio {Gagliardi} and Roland A. {Fischer}", title="Optimizing the Size of Platinum Nanoparticles for Enhanced Mass Activity in the Electrochemical Oxygen Reduction Reaction", journal="ANGEWANDTE CHEMIE-INTERNATIONAL EDITION", year="2019", volume="58", number="28", pages="9596--9600", doi="10.1002/anie.201904492", issn="1433-7851", url="https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201904492" }