Anionic reagent element complexes, their variations, and their uses

Patent metadata

Field	Value
Publication number	US-9643254-B2
Application number	US-201615173603-A
Country	US
Kind code	B2
Filing date	Jun 3, 2016
Priority date	Oct 4, 2013
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A novel class of reagents, useful for synthesis of elemental nanoparticles, includes at least one element, formally in oxidation state zero in complex with a hydride molecule. The reagents can optionally include an additional ligand incorporated into the complex. Elemental nanoparticles are synthesized by adding solvent to the reagent, optionally with a free ligand and/or a monoatomic cation.

First claim

What is claimed is:

1. A reagent complex having a formula:
Q 0 ·X y ·L z ,

wherein Q 0 is an element, formally in oxidation state zero; X is a hydride molecule, L is an incorporated ligand, y is an integral or fractional value greater than zero, and z is zero or greater.

2. A reagent complex having a formula,
Q 0 ·X y ·L z ,

wherein Q 0 is a metal, metalloid or non-metal element, formally in oxidation state zero; X is a hydride molecule, L is an incorporated ligand, y is an integral or fractional value greater than zero, and z is zero or greater.

3. The reagent complex as recited in claim 2 , wherein the hydride molecule comprises a complex metal hydride or a complex metalloid hydride.

4. The reagent complex as recited in claim 2 , wherein the hydride molecule comprises lithium borohydride.

5. The reagent complex as recited in claim 2 , wherein y is about 4 or less.

6. A process for synthesizing elemental nanoparticles, the process comprising:
adding solvent to a reagent complex having a formula:
Q 0 ·X y ·L z ,

wherein Q 0 is an element, formally in oxidation state zero, X is a hydride molecule, L is an incorporated ligand, y is an integral or fractional value greater than zero, and z is zero or greater.

7. The process as recited in claim 6 , comprising adding a free ligand to the reagent complex.

8. The process as recited in claim 6 , wherein the hydride molecule is lithium borohydride.

9. A process for synthesizing elemental nanoparticles, the process comprising:
adding a monoatomic cation to a reagent complex having a formula:
Q 0 ·X y ·L z ,

wherein Q 0 is an element, formally in oxidation state zero; X is a hydride molecule; L is an incorporated ligand; y is an integral or fractional value greater than zero; and z is zero or greater.

10. The process as recited in claim 9 , comprising adding a free ligand to the reagent complex.

11. The process as recited in claim 9 , wherein the hydride molecule is lithium borohydride.

12. The process as recited in claim 9 , wherein the element is a metalloid.

13. The process as recited in claim 9 , wherein the element is a non-metal.

14. The process as recited in claim 9 , wherein the element is a metal.

Assignees

• Toyota Motor Eng & Mfg North America Inc

Inventors

• Rowe Michael P

Classifications

• C01B6/21 Primary

  Preparation of borohydrides of alkali metals, alkaline earth metals, magnesium or beryllium; Addition complexes thereof, e.g. LiBH4.2N2H4, NaB2H7 · CPC title

• B22F2998/10

  Processes characterised by the sequence of their steps · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• H01F3/00

  Cores, Yokes, or armatures (magnetic materials H01F1/00; permanent magnets H01F7/02) · CPC title

• Y10S977/896

  Chemical synthesis, e.g. chemical bonding or breaking · CPC title