US 2019/0100440 A1 · METHOD FOR THE SYNTHESIS OF NANOPARTICLES OF HETEROMETALLIC NANOCOMPOSITE MATERIALS

Abstract

A simple one pot sol-gel method for the synthesis of bi-metal nanostructures is based on non-noble metals (Fe, Co and Sn) and titanium. The method involves the synthesis of mixed metal nanoscale composites using low cost precursors which allow for the synthesis of desired nanocomposite materials with self-scarifying titanium or silica supports. The procedure does not require any surfactant or any need for pH controlled step. Applicants' method involves the in-situ generation of precursors and their simultaneous entrapment in a gel. This simple one pot synthesis allows for the synthesis of homogenous size, shape and distribution of targeted nanostructures. Further, this method can be applied for the preparation of various nanocomposite materials using different choices of metals and self-scarifying supports. Applicants also show that Pd, the noble metal based nanocomposite is feasible.

Claims20

Dependent claims

A sol-gel method for the synthesis of nanoparticles of heterometallic nanocomposite materials, said method comprising:

a first mass of tetrahydrofuron (THF) and a second smaller quantity of trifilic acid (TFC) added to said tetrahydrofuron for polymerization of said tetrahydrofuron;
and
once a gel is formed the reaction mixture including said gel was transferred to one or more crucibles and transferred into a muffled furnace at a temperature raised to 500° C. at a rate of 4° C. per minute and held at 500° C. for 2 hours as shown by the following formula:
wherein M=Fe, Sn, Co, Pb, Pt and Pd and X=a halide, or an organic ligand including acetylacetonate and pentadienyl and similarly metal-silicon nanocomposites are prepared.

1 more element

A sol-gel method for the synthesis of nanoparticles of heterometallic nanocomposite materials, said method consisting of:

a first mass of tetrahydrofuron (THF) and a second smaller quantity of trifilic acid (TFC) added to said tetrahydrofuron for polymerization of said tetrahydrofuron;
and
once a gel is formed the reaction mixture including said gel was transferred to one or more crucibles and transferred into a muffled furnace at a temperature raised to 500° C. at a rate of 4° C. per minute and held at 500° C. for 2 hours as shown by the following formula:
wherein M=Fe, Sn, Co, Pb, Pt and Pd and X=a halide, or an organic ligand including acetylacetonate and pentadienyl and similarly metal-silicon nanocomposites are prepared.

1 more element

Dependencies are inferred from the claim text.

Method for the synthesis of nanoparticles of heterometallic nanocomposite materials

Life of this patent

Method for the synthesis of nanoparticles of heterometallic nanocomposite materials

Life of this patent

Abstract

Claims20