Szczegóły publikacji

Opis bibliograficzny

Ultra-low Pt loading catalyst on $(Nb–Ti)_{2}AlC$ support as advanced material for low-temperature fuel cell application / A. Petričević, V. D. Jović, M. N. Krstajić Pajić, M. MARZEC, M. GAJEWSKA, P. ŻABIŃSKI, N. R. Elezović // Transactions of the Institute of Metal Finishing ; ISSN 0020-2967. — 2024 — vol. 102 no. 2, s. 91–97. — Bibliogr. s. 96-97, Abstr. — Publikacja dostępna online od: 2023-11-23


Autorzy (7)


Słowa kluczowe

electrochemical characterisationplatinum monolayersMAX phasesPEMFCselectrochemically active surface areaelectrodepositionoxygen reductionstability tests

Dane bibliometryczne

ID BaDAP152362
Data dodania do BaDAP2024-04-11
DOI10.1080/00202967.2023.2281806
Rok publikacji2024
Typ publikacjiartykuł w czasopiśmie
Otwarty dostęptak
Czasopismo/seriaTransactions of the Institute of Metal Finishing

Abstract

The oxygen reduction reaction was investigated at 10 monolayers (MLs) of Pt electrodeposited on (Nb–Ti)2AlC substrate. Following the discussion of detailed kinetics and electrodeposition optimisation in the authors’ previous paper, the focus of this research was on stability testing. Previously performed optimisation results showed the best activity shown by 10 monolayers of Pt. Catalyst characterisation was performed by scanning electron microscopy, X-ray photoelectron spectroscopy and transmission electron microscopy. SEM, EDS and XPS analysis showed that the surface was covered with a homogeneous layer of Pt. TEM analysis of a cross-section confirmed the presence of Pt layer of thickness ∼3.5 nm, corresponding to the 10 MLs of Pt. Although the mass activity for the ORR at 0.8 V vs. RHE of 37.4 A g−1 was comparable with the best one for the Pt/C benchmark, US Department of Energy Protocols revealed excellent catalyst stability – the loss of electrochemically active surface area (EASA) was found to be only 9.3%.