Optimizing the Size of Platinum Nanoparticles for Enhanced Mass Activity in the Electrochemical Oxygen Reduction Reaction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU132333" target="_blank" >RIV/00216305:26620/19:PU132333 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201904492" target="_blank" >https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201904492</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/anie.201904492" target="_blank" >10.1002/anie.201904492</a>
Alternative languages
Result language
angličtina
Original language name
Optimizing the Size of Platinum Nanoparticles for Enhanced Mass Activity in the Electrochemical Oxygen Reduction Reaction
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN
1433-7851
e-ISSN
1521-3773
Volume of the periodical
58
Issue of the periodical within the volume
28
Country of publishing house
DE - GERMANY
Number of pages
5
Pages from-to
9596-9600
UT code for WoS article
000476610900048
EID of the result in the Scopus database
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