Matches in SemOpenAlex for { <https://semopenalex.org/work/W2000258743> ?p ?o ?g. }
- W2000258743 endingPage "474" @default.
- W2000258743 startingPage "469" @default.
- W2000258743 abstract "Better understanding of the factors responsible for the long-term stability of electrocatalysts is of increasing importance for the development of new generations of efficient electrode materials relevant for sustainable energy provision. Therefore, experiments with model, often single-crystal catalytic surfaces are of significance for fundamental electrochemistry and technological applications. Among model electrocatalysts, near-surface alloys (NSAs) of Pt with Cu, Ni and other metals formed via electrochemical deposition and thermal annealing have shown remarkable properties, demonstrating high activity towards a number of important reactions, including the oxygen reduction reaction (ORR) and CO oxidation. However, relatively little is known about the electrochemical stability and mechanisms of degradation of model NSAs. In this work, we employ a simple electrochemical approach, supported by density functional theory calculations, to evaluate the stability of Cu-Pt(111) NSAs in 0.1 M HClO4. Our results show that ∼30% of the Cu atoms initially incorporated into the second atomic layer of Pt are lost within the first 2000 cycles performed between 0.05 V and 1.0 V (RHE). After 5000 cycles, ca. half of the Cu atoms initially placed in the second atomic layer still remained in the subsurface region. The dissolution of Cu has a substantial impact on the measured shift in the average OH-binding energy for the catalyst surface and, consequently, on the ORR activity. Interestingly, after dissolution of Cu from NSAs, voltammetric features, which are characteristic to the Pt(111) facets, are partially restored suggesting the formation of NSA and Pt(111) domains in the resulting surface." @default.
- W2000258743 created "2016-06-24" @default.
- W2000258743 creator A5020956698 @default.
- W2000258743 creator A5026566541 @default.
- W2000258743 creator A5035321019 @default.
- W2000258743 creator A5072047777 @default.
- W2000258743 creator A5082470409 @default.
- W2000258743 date "2015-10-01" @default.
- W2000258743 modified "2023-10-12" @default.
- W2000258743 title "Evaluation of the Electrochemical Stability of Model Cu-Pt(111) Near-Surface Alloy Catalysts" @default.
- W2000258743 cites W1973634181 @default.
- W2000258743 cites W1979544533 @default.
- W2000258743 cites W1988947156 @default.
- W2000258743 cites W1996813298 @default.
- W2000258743 cites W2016460017 @default.
- W2000258743 cites W2022956627 @default.
- W2000258743 cites W2034568303 @default.
- W2000258743 cites W2043329635 @default.
- W2000258743 cites W2046105770 @default.
- W2000258743 cites W2048229801 @default.
- W2000258743 cites W2051229338 @default.
- W2000258743 cites W2053309312 @default.
- W2000258743 cites W2060455496 @default.
- W2000258743 cites W2064807075 @default.
- W2000258743 cites W2067746562 @default.
- W2000258743 cites W2068035701 @default.
- W2000258743 cites W2073216507 @default.
- W2000258743 cites W2073492387 @default.
- W2000258743 cites W2075605972 @default.
- W2000258743 cites W2077036347 @default.
- W2000258743 cites W2079579699 @default.
- W2000258743 cites W2081599114 @default.
- W2000258743 cites W2083165113 @default.
- W2000258743 cites W2083222334 @default.
- W2000258743 cites W2085347406 @default.
- W2000258743 cites W2113603381 @default.
- W2000258743 cites W2118401551 @default.
- W2000258743 cites W2118708336 @default.
- W2000258743 cites W2120318938 @default.
- W2000258743 cites W2133911291 @default.
- W2000258743 cites W2140715004 @default.
- W2000258743 cites W2151804486 @default.
- W2000258743 cites W2322383824 @default.
- W2000258743 cites W2322429591 @default.
- W2000258743 cites W2331666382 @default.
- W2000258743 cites W4240251222 @default.
- W2000258743 doi "https://doi.org/10.1016/j.electacta.2015.02.110" @default.
- W2000258743 hasPublicationYear "2015" @default.
- W2000258743 type Work @default.
- W2000258743 sameAs 2000258743 @default.
- W2000258743 citedByCount "11" @default.
- W2000258743 countsByYear W20002587432016 @default.
- W2000258743 countsByYear W20002587432017 @default.
- W2000258743 countsByYear W20002587432019 @default.
- W2000258743 countsByYear W20002587432022 @default.
- W2000258743 countsByYear W20002587432023 @default.
- W2000258743 crossrefType "journal-article" @default.
- W2000258743 hasAuthorship W2000258743A5020956698 @default.
- W2000258743 hasAuthorship W2000258743A5026566541 @default.
- W2000258743 hasAuthorship W2000258743A5035321019 @default.
- W2000258743 hasAuthorship W2000258743A5072047777 @default.
- W2000258743 hasAuthorship W2000258743A5082470409 @default.
- W2000258743 hasConcept C106773901 @default.
- W2000258743 hasConcept C127413603 @default.
- W2000258743 hasConcept C147789679 @default.
- W2000258743 hasConcept C151730666 @default.
- W2000258743 hasConcept C161790260 @default.
- W2000258743 hasConcept C17525397 @default.
- W2000258743 hasConcept C179104552 @default.
- W2000258743 hasConcept C185592680 @default.
- W2000258743 hasConcept C191897082 @default.
- W2000258743 hasConcept C192562407 @default.
- W2000258743 hasConcept C2777855556 @default.
- W2000258743 hasConcept C2780026712 @default.
- W2000258743 hasConcept C2816523 @default.
- W2000258743 hasConcept C33989665 @default.
- W2000258743 hasConcept C42360764 @default.
- W2000258743 hasConcept C52859227 @default.
- W2000258743 hasConcept C55493867 @default.
- W2000258743 hasConcept C55904794 @default.
- W2000258743 hasConcept C64297162 @default.
- W2000258743 hasConcept C86803240 @default.
- W2000258743 hasConcept C88380143 @default.
- W2000258743 hasConceptScore W2000258743C106773901 @default.
- W2000258743 hasConceptScore W2000258743C127413603 @default.
- W2000258743 hasConceptScore W2000258743C147789679 @default.
- W2000258743 hasConceptScore W2000258743C151730666 @default.
- W2000258743 hasConceptScore W2000258743C161790260 @default.
- W2000258743 hasConceptScore W2000258743C17525397 @default.
- W2000258743 hasConceptScore W2000258743C179104552 @default.
- W2000258743 hasConceptScore W2000258743C185592680 @default.
- W2000258743 hasConceptScore W2000258743C191897082 @default.
- W2000258743 hasConceptScore W2000258743C192562407 @default.
- W2000258743 hasConceptScore W2000258743C2777855556 @default.
- W2000258743 hasConceptScore W2000258743C2780026712 @default.
- W2000258743 hasConceptScore W2000258743C2816523 @default.
- W2000258743 hasConceptScore W2000258743C33989665 @default.
- W2000258743 hasConceptScore W2000258743C42360764 @default.