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Название: Liquid-Phase Exfoliated Indium–Selenide Flakes and Their Application in Hydrogen Evolution Reaction
Авторы: Petroni, E.
Lago, E.
Bellani, S.
Boukhvalov, D. W.
Politano, A.
Gürbulak, B.
Duman, S.
Prato, M.
Gentiluomo, S.
Oropesa-Nuñez, R.
Panda, J. -K.
Toth, P. S.
Del Rio Castillo, A. E.
Pellegrini, V.
Bonaccorso, F.
Дата публикации: 2018
Издатель: Wiley-VCH Verlag
Библиографическое описание: Liquid-Phase Exfoliated Indium–Selenide Flakes and Their Application in Hydrogen Evolution Reaction / E. Petroni, E. Lago, S. Bellani, et al. — DOI 10.1002/smll.201800749 // Small. — 2018. — Vol. 14. — Iss. 26. — 1800749.
Аннотация: Single- and few-layered InSe flakes are produced by the liquid-phase exfoliation of β-InSe single crystals in 2-propanol, obtaining stable dispersions with a concentration as high as 0.11 g L−1. Ultracentrifugation is used to tune the morphology, i.e., the lateral size and thickness of the as-produced InSe flakes. It is demonstrated that the obtained InSe flakes have maximum lateral sizes ranging from 30 nm to a few micrometers, and thicknesses ranging from 1 to 20 nm, with a maximum population centered at ≈5 nm, corresponding to 4 Se–In–In–Se quaternary layers. It is also shown that no formation of further InSe-based compounds (such as In2Se3) or oxides occurs during the exfoliation process. The potential of these exfoliated-InSe few-layer flakes as a catalyst for the hydrogen evolution reaction (HER) is tested in hybrid single-walled carbon nanotubes/InSe heterostructures. The dependence of the InSe flakes' morphologies, i.e., surface area and thickness, on the HER performances is highlighted, achieving the best efficiencies with small flakes offering predominant edge effects. The theoretical model unveils the origin of the catalytic efficiency of InSe flakes, and correlates the catalytic activity to the Se vacancies at the edge of the flakes. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Ключевые слова: ELECTROCATALYSIS
HYDROGEN EVOLUTION REACTION
INDIUM SELENIDE
LIQUID-PHASE EXFOLIATION
WATER SPLITTING
CATALYST ACTIVITY
EFFICIENCY
ELECTROCATALYSIS
LIQUIDS
SELENIUM COMPOUNDS
SINGLE CRYSTALS
SINGLE-WALLED CARBON NANOTUBES (SWCN)
YARN
CATALYTIC EFFICIENCIES
EXFOLIATION PROCESS
HYDROGEN EVOLUTION REACTIONS
INDIUM SELENIDE
LIQUID PHASE
THEORETICAL MODELING
ULTRACENTRIFUGATION
WATER SPLITTING
INDIUM COMPOUNDS
URI: http://elar.urfu.ru/handle/10995/101969
Условия доступа: info:eu-repo/semantics/openAccess
Идентификатор SCOPUS: 85049046689
Идентификатор PURE: 7420208
678c8945-7b3c-4f5b-9bee-3d2739c8088b
ISSN: 16136810
DOI: 10.1002/smll.201800749
Располагается в коллекциях:Научные публикации, проиндексированные в SCOPUS и WoS CC

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