Metal phosphide catalysts and methods for making the same and uses thereof

Patent metadata

Field	Value
Publication number	US-10350583-B2
Application number	US-201715458397-A
Country	US
Kind code	B2
Filing date	Mar 14, 2017
Priority date	Jun 4, 2015
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

The present disclosure relates to a method that includes heating a mixture that includes a metal phenylphosphine-containing precursor that includes at least one of Mo(PPh3)2(CO)4, Pd(PPh3)4, Ru(PPh3)3Cl2, Ru(PPh3)2(CO)2Cl2, Co(PPh3)(CO)2(NO), and/or Rh(PPh3)2(CO)Cl, a surfactant, and a solvent. The heating is to a target temperature to form a heated mixture containing a metal phosphide nanoparticle that includes at least one of MoP, Ru2P, Co2P, Rh2P, and/or Pd3P, and the metal phosphide nanoparticle is not hollow.

First claim

What is claimed is:

1. A method comprising:
heating to a target temperature a mixture comprising:
a metal phenylphosphine- and carbonyl-containing precursor comprising at least one of Mo(PPh 3 ) 2 (CO) 4 , Ru(PPh 3 ) 2 (CO) 2 Cl 2 , Co(PPh 3 )(CO) 2 (NO), or Rh(PPh 3 ) 2 (CO)Cl;
oleylamine; and
1-octadecene, wherein:

the heating results in a mixture containing a metal phosphide nanoparticle comprising at least one of MoP, Ru 2 P, Co 2 P, or Rh 2 P, and
the target temperature is between 250° C. and 320° C.

2. The method of claim 1 , wherein the target temperature is maintained for a time period between 15 minutes and 4 hours.

3. The method of claim 1 , wherein
the metal phosphide nanoparticle comprises at least one of a hexagonal crystal structure or a cubic crystal structure.

4. The method of claim 1 , wherein the metal phosphide nanoparticle has an XRD spectrum that exhibits suppression or elimination of a peak for 2θ between 42° and 46°.

5. The method of claim 1 , wherein the metal phosphide nanoparticle has an average particle size between 2 nm and 50 nm.

6. The method of claim 1 , further comprising separating the metal phosphide nanoparticle from the mixture.

7. The method of claim 6 , wherein the separating is performed by centrifugation.

8. The method of claim 1 , wherein the metal phosphide nanoparticle is not hollow.

Assignees

• Alliance Sustainable Energy

Inventors

• Habas Susan Ellen
• Wang Jun
• Ruddy Daniel A
• Baddour Frederick Raymond Gabriel
• Schaidle Joshua

Classifications

• B01J35/002

  Operations & Transport · mapped topic

• B01J27/1856

  with platinum group metals · CPC title

• B01J27/19 Primary

  Molybdenum · CPC title

• B01J35/023

  Operations & Transport · mapped topic

• B01J37/086

  Decomposition of an organometallic compound, a metal complex or a metal salt of a carboxylic acid · CPC title