Research on the preparation and performance of Ni2P@MOF composite nanomaterials

Abstract

The present study employed a solvothermal method utilizing triphenylphosphine and nickel acetylacetonate as precursors for phosphide preparation, followed by analysis and characterization. The Ni–MOF precursor was prepared using benzene diacid, triethylenediamine, and nickel sulfate as raw materials. Ni₂P was introduced into the Ni–MOF precursor during its preparation while maintaining the synthesis conditions, allowing for the adsorption of Ni₂P nanoparticles during Ni–MOF synthesis to produce Ni₂P@MOF composite materials. The materials underwent individual testing for UV, magnetic, and microwave absorption properties. Magnetic testing results demonstrated that the incorporation of Ni₂P led to an increase in the saturation magnetization (M_s) of Ni₂P@MOFs compared to the Ni–MOF, thereby enhancing its electromagnetic loss capability. Microwave absorption property testing indicated that the Ni₂P@MOFs exhibited enhanced dielectric and electromagnetic loss capabilities compared to the Ni–MOF, optimizing impedance matching properties and increasing effective absorption bandwidth compared to pure Ni₂P materials.