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Atomically resolved dealloying of structurally ordered Pt nanoalloy as an oxygen reduction reaction electrocatalyst
Andraž Pavlišič, Primož Jovanovič, Vid Simon Šelih, Martin Šala, Marjan Bele, Goran Dražić, Iztok Arčon, Samo B. Hočevar, Anton Kokalj, Nejc Hodnik, Miran Gaberšček, original scientific article

Abstract: The positive effect of intermetallic ordering of platinum alloy nanoparticles on oxygen reduction reaction (ORR) activity has been well established. What is still missing is an understanding of selective leaching of the less noble metal from the ordered structure and its correlation to longterm ORR performance. Using a combination of kinetic Monte Carlo simulations and advanced characterization techniques, we provide unprecedented insight into dealloying of intermetallic PtCu3 nanoparticles a well-known binary alloy. Comparison of ordered and disordered samples with identical initial compositions and particle size distributions reveals an unexpected correlation: whereas the copper dealloying rates in the ordered and disordered counterparts are almost the same, in the ordered structure Pt atoms are surrounded by 15−30% more Cu atoms throughout all the stages of acid leaching. This more convenient Pt−Cu coordination explains the statistically significant increase of 23−37% in ORR activity of the ordered structure at all stages of alloy degradation.
Found in: ključnih besedah
Summary of found: ...The positive effect of intermetallic ordering of platinum alloy nanoparticles on oxygen reduction...
Keywords: ORR activity, fuel cells, platinum alloy, nanoparticle stability, intermetallic ordering, kinetic Monte Carlo, dealloying, in situ ICP-MS
Published: 27.09.2016; Views: 4699; Downloads: 0
.pdf Fulltext (3,27 MB)

Looking for Cognitive Foundations of Functional Sequences
Rok Žaucer, Petra Mišmaš, Franc Marušič, 2019, published scientific conference contribution

Abstract: With the multiplication of various functional projections, syntactic structures became very complex entities. Approaches like Cartography (e.g. Cinque and Rizzi 2008) went one step further than most other approaches, proposing that each sentence comprises of a number of universal, strictly ordered functional projections. In the noun phrase, the strictly ordered functional projections are said to be responsible not only for the relative order of numerals, demonstratives and nouns (cf. Cinque 2005), but also for the universal order of various types of adjectives (cf. Hetzron 1978; Sproat and Shih 1991; Cinque 1994; Scott 2002, etc.). Cinque and Rizzi (2008) discuss possible origins of the many hierarchies of functional projections and suggest that they might derive from general cognition. If cognition and its restrictions are behind the hierarchy of functional projections, then the order of projections hosting adjectives should be reflected in various non-linguistic cognitive processes. We designed several experiments to test this hypothesis. Our experiments did not confirm our hypothesis; but as we have also identified problems in the design of our experiments, our results do not warrant a clear rejection of the hypothesis either.
Found in: ključnih besedah
Summary of found: ...noun phrase, adjective ordering restrictions, functional hierarchy, experimental syntax,cognitive foundations o...
Keywords: noun phrase, adjective ordering restrictions, functional hierarchy, experimental syntax, cognitive foundations of syntax
Published: 22.11.2019; Views: 2169; Downloads: 0
.pdf Fulltext (297,67 KB)

Orderings and valuations in hyperfields
Hanna Stojałowska, Alessandro Linzi, Katarzyna Kuhlmann, 2022, original scientific article

Found in: ključnih besedah
Summary of found: ...hyperfields, hyperring, ordering, valuation...
Keywords: hyperfields, hyperring, ordering, valuation
Published: 28.09.2022; Views: 307; Downloads: 0
.pdf Fulltext (265,34 KB)
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Adjective ordering and concept perception: two sides of the same coin
Rok Žaucer, Vesna Plesničar, Petra Mišmaš, Franc Marušič, unpublished conference contribution

Found in: ključnih besedah
Keywords: adjectives, adjective ordering restrictions, corpus, cognition, noun phrase, Slovenian, perception
Published: 21.02.2023; Views: 100; Downloads: 0
.pdf Fulltext (190,74 KB)

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