Defective Pt–Ni/graphene nanomaterials by simultaneous or sequential treatments of organometallic precursors by low-pressure oxygen plasma

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Résumé

A strategy to reduce critical raw metals in nanocatalysts is to synthesize nanocomposites based on defective or bimetallic nanoparticles deposition on carbon nanomaterials. Conventional solution-based methods suffer from the extensive use of solvents and difficult scalability. In this study, defective Pt–Ni nanoparticles are formed on graphene nanoplatelets thanks to an original approach based on simultaneous or sequential low-temperature oxygen plasma treatments of nickel and platinum acetylacetonates. The two processing conditions produce aggregated Pt–Ni nanoparticles with variable morphologies, size crystallinities, and oxidation states. The materials analytical characterizations show that the sequential treatment promotes small Pt–Ni particle aggregates nucleation, while the simultaneous treatment leads to complex interconnected Pt–Ni-based phases. Such defective nanoparticles are promising for multiple applications in catalysis and energy.

langue originaleAnglais
Numéro d'articlee1800203
journalPlasma Processes and Polymers
Les DOIs
étatPublié - 1 janv. 2019

Empreinte digitale

Graphite
oxygen plasma
Organometallics
Nanostructured materials
Graphene
graphene
low pressure
Oxygen
Nanoparticles
Plasmas
nanoparticles
cold plasmas
Platinum
Nickel
Catalysis
catalysis
Scalability
crystallinity
platinum
Nucleation

mots-clés

    Citer ceci

    @article{57e3667d482244a4a77c3c32d3930816,
    title = "Defective Pt–Ni/graphene nanomaterials by simultaneous or sequential treatments of organometallic precursors by low-pressure oxygen plasma",
    abstract = "A strategy to reduce critical raw metals in nanocatalysts is to synthesize nanocomposites based on defective or bimetallic nanoparticles deposition on carbon nanomaterials. Conventional solution-based methods suffer from the extensive use of solvents and difficult scalability. In this study, defective Pt–Ni nanoparticles are formed on graphene nanoplatelets thanks to an original approach based on simultaneous or sequential low-temperature oxygen plasma treatments of nickel and platinum acetylacetonates. The two processing conditions produce aggregated Pt–Ni nanoparticles with variable morphologies, size crystallinities, and oxidation states. The materials analytical characterizations show that the sequential treatment promotes small Pt–Ni particle aggregates nucleation, while the simultaneous treatment leads to complex interconnected Pt–Ni-based phases. Such defective nanoparticles are promising for multiple applications in catalysis and energy.",
    keywords = "graphene, low-pressure plasma treatment, prganometallic, Pt–Ni nanocomposites",
    author = "{da Silva Pires}, Mathieu and Emile Haye and Anthony Zubiaur and Nathalie Job and Pireaux, {Jean Jacques} and Laurent Houssiau and Yan Busby",
    year = "2019",
    month = "1",
    day = "1",
    doi = "10.1002/ppap.201800203",
    language = "English",
    journal = "Plasma Processes and Polymers",
    issn = "1612-8850",
    publisher = "Wiley-VCH Verlag",

    }

    TY - JOUR

    T1 - Defective Pt–Ni/graphene nanomaterials by simultaneous or sequential treatments of organometallic precursors by low-pressure oxygen plasma

    AU - da Silva Pires, Mathieu

    AU - Haye, Emile

    AU - Zubiaur, Anthony

    AU - Job, Nathalie

    AU - Pireaux, Jean Jacques

    AU - Houssiau, Laurent

    AU - Busby, Yan

    PY - 2019/1/1

    Y1 - 2019/1/1

    N2 - A strategy to reduce critical raw metals in nanocatalysts is to synthesize nanocomposites based on defective or bimetallic nanoparticles deposition on carbon nanomaterials. Conventional solution-based methods suffer from the extensive use of solvents and difficult scalability. In this study, defective Pt–Ni nanoparticles are formed on graphene nanoplatelets thanks to an original approach based on simultaneous or sequential low-temperature oxygen plasma treatments of nickel and platinum acetylacetonates. The two processing conditions produce aggregated Pt–Ni nanoparticles with variable morphologies, size crystallinities, and oxidation states. The materials analytical characterizations show that the sequential treatment promotes small Pt–Ni particle aggregates nucleation, while the simultaneous treatment leads to complex interconnected Pt–Ni-based phases. Such defective nanoparticles are promising for multiple applications in catalysis and energy.

    AB - A strategy to reduce critical raw metals in nanocatalysts is to synthesize nanocomposites based on defective or bimetallic nanoparticles deposition on carbon nanomaterials. Conventional solution-based methods suffer from the extensive use of solvents and difficult scalability. In this study, defective Pt–Ni nanoparticles are formed on graphene nanoplatelets thanks to an original approach based on simultaneous or sequential low-temperature oxygen plasma treatments of nickel and platinum acetylacetonates. The two processing conditions produce aggregated Pt–Ni nanoparticles with variable morphologies, size crystallinities, and oxidation states. The materials analytical characterizations show that the sequential treatment promotes small Pt–Ni particle aggregates nucleation, while the simultaneous treatment leads to complex interconnected Pt–Ni-based phases. Such defective nanoparticles are promising for multiple applications in catalysis and energy.

    KW - graphene

    KW - low-pressure plasma treatment

    KW - prganometallic

    KW - Pt–Ni nanocomposites

    UR - http://www.scopus.com/inward/record.url?scp=85063148606&partnerID=8YFLogxK

    U2 - 10.1002/ppap.201800203

    DO - 10.1002/ppap.201800203

    M3 - Article

    JO - Plasma Processes and Polymers

    JF - Plasma Processes and Polymers

    SN - 1612-8850

    M1 - e1800203

    ER -