Detail publikačního výsledku

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.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

mass activity prediction · metal– organic frameworks (MOFs) · oxygen reduction reaction · platinum · size effect

Klíčová slova v angličtině

mass activity prediction · metal– organic frameworks (MOFs) · oxygen reduction reaction · platinum · size effect

Autoři

GARLYYEV, B.; KRATZL, K.; RÜCK, M.; MICHALIČKA, J.; FICHTNER, J.; MACÁK, J.; KRATKY, T.; GÜNTHER, S.; COKOJA, M.; BANDARENKA, A.; GAGLIARDI, A.; FISCHER, R.

Rok RIV

2020

Vydáno

08.07.2019

ISSN

1433-7851

Periodikum

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Svazek

58

Číslo

28

Stát

Spolková republika Německo

Strany od

9596

Strany do

9600

Strany počet

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"
}