From quaternary to senary high entropy antimonide nanoparticles by a facile and scalable thermal treatment method. (September 2022)

• Record Type: Journal Article
• Authors: Soltani, Nayereh; Rahman, Jamil Ur; Carvalho, Patricia Almeida; Bazioti, Calliope; Finstad, Terje
• Is Part Of: Materials research bulletin. Volume 153(2022)
• Publication Date: 2022-09
• Subjects: Intermetallic compounds -- Nanostructures -- Electron microscopy -- X-ray diffraction -- Crystal structure; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2022.111873
• Languages: English
• ISSNs: 0025-5408

Abstract

Highlights: Preparing a new class of multicomponent/high entropy antimonide nanoparticles. Substituting the lattice sites of intermetallic nanoparticles by a variety of metals. Obtaining uniform elemental distributions (from quaternary to senary) in a single NP. A facile, reproducible, and scalable method to prepare new nanoscale compounds. Abstract: Transition metal antimonides form a class of intermetallic compounds, which has drawn considerable attention due to their potential applications in various fields. However, the formation of nanostructures containing multiple transition metal elements has been a challenge. Here, a new class of multicomponent antimonide nanoparticles with chemical composition ranging from quaternary to senary were synthesized via a simple, reproducible, and scalable thermal treatment method. This method allows uniform elemental distributions in a single nanoparticle, demonstrating the ability to obtain medium- and high-entropy antimonide nanostructures. The mechanism of formation was proposed and the characteristics of obtained nanoparticles were investigated by X-ray diffraction, field emission scanning electron microscopy, and high-resolution transmission electron microscopy. Under the achieved optimal synthesis conditions, the formation of a single-phase with a hexagonal structure (P63 /mmc) was observed for the quaternary and quinary samples, whereas in the case of the senary samples, a trace of minor impurity can be observed. Graphical abstract: Image, graphical abstract