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Tytuł:
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Surfactant-free syntheses and pair distribution function analysis of osmium nanoparticles.
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Autorzy:
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Juelsholt M; Department of Chemistry, University of Copenhagen, 5 Universitetsparken, Copenhagen, 2100, Denmark.
Quinson J; Department of Chemistry, University of Copenhagen, 5 Universitetsparken, Copenhagen, 2100, Denmark.
Kjær ETS; Department of Chemistry, University of Copenhagen, 5 Universitetsparken, Copenhagen, 2100, Denmark.
Wang B; Department of Chemistry, University of Copenhagen, 5 Universitetsparken, Copenhagen, 2100, Denmark.
Pittkowski R; Department of Chemistry, University of Copenhagen, 5 Universitetsparken, Copenhagen, 2100, Denmark.
Cooper SR; Department of Chemistry, University of Copenhagen, 5 Universitetsparken, Copenhagen, 2100, Denmark.
Kinnibrugh TL; X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, 9700 S Cass Ave, Lemont, IL 60439, USA.
Simonsen SB; Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej Bldg. 310, Lyngby, DK-2800 Kgs., Denmark.
Theil Kuhn L; Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej Bldg. 310, Lyngby, DK-2800 Kgs., Denmark.
Escudero-Escribano M; Department of Chemistry, University of Copenhagen, 5 Universitetsparken, Copenhagen, 2100, Denmark.
Jensen KMØ; Department of Chemistry, University of Copenhagen, 5 Universitetsparken, Copenhagen, 2100, Denmark.
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Źródło:
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Beilstein journal of nanotechnology [Beilstein J Nanotechnol] 2022 Feb 16; Vol. 13, pp. 230-235. Date of Electronic Publication: 2022 Feb 16 (Print Publication: 2022).
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Frankfurt am Main : Beilstein-Institut zur Förderung der Chemischen Wissenschaften, 2010, ©2010-
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References:
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Contributed Indexing:
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Keywords: metal nanoparticles; osmium; pair distribution function; surfactant-free synthesis
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Entry Date(s):
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Date Created: 20220314 Latest Revision: 20220315
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Update Code:
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20240105
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PubMed Central ID:
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PMC8895034
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DOI:
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10.3762/bjnano.13.17
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PMID:
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35281627
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A surfactant-free synthesis of precious metal nanoparticles (NPs) performed in alkaline low-boiling-point solvents has been recently reported. Monoalcohols are here investigated as solvents and reducing agents to obtain colloidal Os nanoparticles by using low-temperature (<100 °C) surfactant-free syntheses. The effect of the precursor (OsCl 3 or H 2 OsCl 6 ), precursor concentration (up to 100 mM), solvent (methanol or ethanol), presence or absence of a base (NaOH), and addition of water (0 to 100 vol %) on the resulting nanomaterials is discussed. It is found that no base is required to obtain Os nanoparticles as opposed to the case of Pt or Ir NPs. The robustness of the synthesis for a precursor concentration up to 100 mM allows for the performance of X-ray total scattering with pair distribution function (PDF) analysis, which shows that 1-2 nm hexagonal close packed (hcp) NPs are formed from chain-like [OsO x Cl y ] complexes.
(Copyright © 2022, Juelsholt et al.)
