Converting bimetallic M (M = Ni, Co, or Fe)-Sn nanoparticles into phosphides: a general strategy for the synthesis of ternary metal phosphide nanocrystals.

ABSTRACT: Ternary metal tin phosphides are promising candidates for electrochemical or catalytic applications. Nevertheless, their synthesis, neither as bulk nor nanomaterials is well investigated in the literature. Here, we describe a general synthetic strategy to convert bimetallic M-Sn (M = Ni, Co, and Fe) nanoparticles to ternary metal phosphides by decomposition of tributylphosphine at 300 °C. At high phosphorus concentrations, Ni₃Sn₄ nanoparticles convert to hybrid structured Ni₂SnP and β-Sn. The CoSn₂ and FeSn₂ nanoparticles undergo a phosphorization, too and form hybrid nanocrystals reported here for the first time, containing ternary or binary phosphides. We identified the crystal structure of the nanoparticles via XRD and HRTEM

SUBMITTER: Duttmann A 

PROVIDER: S-EPMC9419847 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature