Synthesis of PtCu/C Nanostructured Electrocatalysts for the Oxygen Reduction Reaction via One-Step Electrochemical Erosion
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0200769" target="_blank" >RIV/00216305:26620/26:0200769 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsami.5c22270?src=getftr&utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://pubs.acs.org/doi/10.1021/acsami.5c22270?src=getftr&utm_source=clarivate&getft_integrator=clarivate</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsami.5c22270" target="_blank" >10.1021/acsami.5c22270</a>
Alternative languages
Result language
angličtina
Original language name
Synthesis of PtCu/C Nanostructured Electrocatalysts for the Oxygen Reduction Reaction via One-Step Electrochemical Erosion
Original language description
Reducing the precious metal loading while increasing the oxygen reduction reaction (ORR) mass activity of novel electrocatalysts constitutes one of the remaining key challenges in the widespread application of proton exchange membrane fuel cells, which is inevitable for the transition to the climate-neutral hydrogen economy. However, this requires a simple, scalable, and affordable production of active nanostructured electrocatalysts. Alloyed nanoparticles of Platinum (Pt) with transition metals like cobalt, nickel, or copper have shown promising activity toward ORR, but their preparation usually involves complex multistep processes and environmentally harmful surfactants or structure-capping agents. In this work, we present the successful synthesis of nonspherical copper-alloyed Pt nanoparticles (PtCu) by employing a simple one-step top-down approach without surfactants or capping agents. The electrocatalysts were characterized by high-resolution transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and inductively coupled plasma mass spectrometry. The ORR kinetics were evaluated using the rotating (ring) disk electrode technique. The synthesized PtCu/C catalysts revealed outstanding mass activities of similar to 1.2 A mgPt -1 at 0.9 V vs the reversible hydrogen electrode, which clearly surpasses state-of-the-art Pt-based catalysts in the literature and demonstrates the highest ORR mass activities reported for PtCu nanoparticles.
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
21001 - Nano-materials (production and properties)
Result continuities
Project
<a href="/en/project/LM2023051" target="_blank" >LM2023051: Research infrastructure CzechNanoLab</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2026
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Materials & Interfaces
ISSN
1944-8244
e-ISSN
1944-8252
Volume of the periodical
18
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
4210-4224
UT code for WoS article
001656094800001
EID of the result in the Scopus database
2-s2.0-105028019774