Ambient methane functionalization initiated by d0 metal-oxo electrocatalyst

Patent metadata

Field	Value
Publication number	US-2023175151-A1
Application number	US-202017636333-A
Country	US
Kind code	A1
Filing date	Aug 21, 2020
Priority date	Aug 22, 2019
Publication date	Jun 8, 2023
Grant date	—

Abstract

The present disclosure relates generally to electrocatalytic process for conversion of a hydrocarbon reactant, comprising: introducing the hydrocarbon reactant into an acidic solution in a presence of a catalyst, wherein the catalyst includes a d° transition metal-oxo moiety; and applying an electrical input to the catalyst to convert the hydrocarbon reactant into a product. The present disclosure also relates to a catalyst for conversion of a hydrocarbon reactant, comprising a d° transition metal-oxo moiety and a sulfonic moiety bonded to the d° transition metal.

First claim

1 . An electrocatalytic process for conversion of a hydrocarbon reactant, the process comprising:
introducing the hydrocarbon reactant into an acidic solution in a presence of a catalyst, wherein the catalyst includes a d 0 transition metal-oxo moiety; and applying an electrical input to the catalyst to convert the hydrocarbon reactant into a product.

2 . The electrocatalytic process of claim 1 , wherein the d 0 transition metal is selected from Group 3, Group 4, Group 5, Group 6, and Group 7 of the periodic table.

3 . The electrocatalytic process of claim 1 , wherein the d 0 transition metal is selected from titanium (IV), vanadium (V), and chromium (VI).

4 . The electrocatalytic process of claim 1 , wherein the catalyst further includes at least one of a sulfonic moiety or a trifluoromethanesulfonic moiety bonded to the d 0 transition metal.

5 . The electrocatalytic process of claim 1 , wherein the catalyst comprises a vanadium (V)-oxo dimer.

6 . The electrocatalytic process of claim 1 , wherein the catalyst has a chemical formula:

7 . The electrocatalytic process of claim 1 , wherein a concentration of the catalyst in the acidic solution is in a range of about 0.1 mM to about 100 mM.

8 . The electrocatalytic process of claim 1 , wherein the catalyst is vanadium (V) phosphate.

9 . The electrocatalytic process of claim 1 , wherein the acidic solution is an aqueous solution.

10 . The electrocatalytic process of claim 9 , wherein the aqueous solution includes sulfuric acid.

11 . The electrocatalytic process of claim 1 , wherein applying the electrical input is carried out at a temperature in a range of up to about 200° C. or less.

12 . The electrocatalytic process of claim 1 , wherein applying the electrical input is carried out at a pressure in a range of up to about 50 bar or less.

13 . The electrocatalytic process of claim 1 , wherein the hydrocarbon reactant includes methane, and the product includes methyl bisulfate.

14 . The electrocatalytic process of claim 1 , wherein the hydrocarbon reactant is a hydrocarbon mixture.

15 . The electrocatalytic process of claim 14 , wherein the hydrocarbon mixture is natural gas.

16 . A catalyst for conversion of a hydrocarbon reactant, the catalyst comprising a d 0 transition metal-oxo moiety and a sulfonic moiety bonded to the d 0 transition metal.

17 . The catalyst of claim 16 , wherein the d 0 transition metal is selected from Group 3, Group 4, Group 5, Group 6, and Group 7 of the periodic table.

18 . The catalyst of claim 16 , wherein the d 0 transition metal is selected from titanium (IV), vanadium (V), and chromium (VI).

19 . The catalyst of claim 16 , wherein the catalyst comprises a vanadium (V)-oxo dimer.

20 . The catalyst of claim 16 , wherein the catalyst has a chemical formula:

Assignees

• Univ California

Inventors

• Deng Jiao
• Liu Chong
• Iniguez Jesus

Classifications

• C25B11/075 Primary

  consisting of a single catalytic element or catalytic compound · CPC title

• C25B3/23

  Oxidation (halogenation C25B3/27) · CPC title

• C01G31/006

  Compounds containing vanadium, with or without oxygen or hydrogen, and containing two or more other elements · CPC title

• B01J38/10

  using elemental hydrogen · CPC title

• B01J2219/0892

  involving catalytically active material · CPC title