Publication detail

Optimizing the Size of Platinum Nanoparticles for Enhanced Mass Activity in the Electrochemical Oxygen Reduction Reaction

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"
}