η ‐Carbides (Co, Mo, or W) Nanoparticles from Octacyanometalates Precursors‐Based Network
In: ISSN: 1613-6810, 2023
academicJournal
Zugriff:
International audience ; This paper describes a simple, two-steps chemical pathway to obtain bimetallic carbide nanoparticles (NPs) of general formula MxM″yC, also called η-carbides. This process allows for a control of the chemical composition of metals present in the carbides (M = Co and M″ = Mo or W). The first step involves the synthesis of a precursor consisting of a network of octacyanometalates. The second step consists in a thermal degradation of the previously obtained octacyanometalates networks under neutral atmosphere (Ar or N2). It is shown that this process results in the formation of carbide NPs with diameter of ≈ 5nm, and the stoichiometries Co3M’3C, Co6M’6C, Co2M’4C for the Cs—Co—M’ systems.
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η ‐Carbides (Co, Mo, or W) Nanoparticles from Octacyanometalates Precursors‐Based Network
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Autor/in / Beteiligte Person: | Blin, Thomas ; Girard, Armelle ; Fossard, Frédéric ; Guillou, Nathalie ; Catala, Laure ; Loiseau, Annick ; Huc, Vincent ; Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) ; Institut de Chimie - CNRS Chimie (INC-CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) ; Université Paris-Saclay, ONERA, CNRS, Laboratoire d'étude des microstructures (LEM) ; ONERA-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) ; DMAS, ONERA, Université Paris Saclay Châtillon ; Paris-Saclay, ONERA-Université ; Institut Lavoisier de Versailles (ILV) ; Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) ; ANR-18-CE09-0014,GIANT,SElectivité durant la Croissance et Application des NanoTubes de CarbOne Monoparoi(2018) |
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Zeitschrift: | ISSN: 1613-6810, 2023 |
Veröffentlichung: | HAL CCSD ; Wiley-VCH Verlag, 2023 |
Medientyp: | academicJournal |
DOI: | 10.1002/smll.202301299 |
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