Materials with atomically dispersed chemical moieties

Patent metadata

Field	Value
Publication number	US-10619256-B2
Application number	US-201615551563-A
Country	US
Kind code	B2
Filing date	Feb 16, 2016
Priority date	Feb 16, 2015
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

Synthetic materials that are useful as heterogeneous catalysts or electrocatalysts. The materials can be used to catalyze oxidation and/or reduction reactions and/or oxygen/hydrogen evolution/oxydation reactions.

First claim

What is claimed is:

1. A method for chemical and electrochemical conversion and transformation of chemicals, molecules, or compounds by supplying carbon dioxide (CO 2 ), carbon monoxide (CO), water, oxygen, hydrogen, oxyfuels or organic/inorganic molecules to a reactor comprising a metal-heteroatom-carbon (M-X—C) catalyst under electrocatalytic or chemical catalytic conditions at which the catalyst catalyzes/promotes an oxidation, reduction, conversion reaction, an oxygen reduction or evolution reaction, a hydrogen oxidation or evolution reaction, or electrolysis;
wherein the metal is Mn.

2. The method of claim 1 wherein the M-X—C catalyst is a morphologically designed porous, self-supported solid-phase material comprising atomically dispersed transition metal moieties coordinated with heteroatomic moieties or heteroatomic and carbon moieties.

3. The method of claim 2 wherein the catalyst is formed by:
dispersing sacrificial particles in a buffer and forming a colloidal solution therefrom;
forming a rigid three-dimensional structure from the colloidal solution; and
removing the sacrificial particles from the rigid three-dimensional structure.

4. The method of claim 1 wherein the oxyfuel is selected from the group consisting of oxalic acid, oxalate, formate, formic acid, methanol, ethanol, 2-propanol, pyruvate, ethylene glycol, malate and tartrate.

5. The method of claim 1 wherein the chemical or compound is CO 2 or CO, N 2 O and the catalyzed reaction is a reduction reaction.

6. The method of claim 5 wherein M-X—C catalyst is formed from precursors of 4-Aminoantipyrine and a metal.

7. The method of claim 1 wherein the chemical or compound is an oxyfuel and the reaction is an oxidation or reduction reaction.

8. The method of claim 1 wherein the chemical or compound is an organic airborne contaminant and the reaction is an oxidation or reduction reaction.

9. The method of claim 1 wherein the chemical or compound is an organic wastewater contaminant and the reaction is an oxidation or reduction reaction.

10. The method of claim 1 wherein the chemical or compound is an organic agricultural feedstock bio-component and the reaction is an oxidation or reduction reaction.

11. A method for chemical and electrochemical conversion and transformation of chemicals, molecules, or compounds by supplying carbon dioxide (CO 2 ), carbon monoxide (CO), water, oxygen, hydrogen, oxyfuels or organic/inorganic molecules to a reactor comprising a metal-heteroatom-carbon (M-X—C) catalyst under electrocatalytic or chemical catalytic conditions at which the catalyst catalyzes/promotes an oxidation, reduction, conversion reaction, an oxygen reduction or evolution reaction, a hydrogen oxidation or evolution reaction, or electrolysis;
wherein the metal is selected from the group consisting of Ce, Cr, Cu, Co, Mo, Ni, Ru, Rh, Pd, Pt, Ir, Os, Ag, Au, Nb, Ta, Ti, V, W, Mn, Zn, Sn, Sb, and Zr;
wherein the M-X—C catalysts comprises a multi-metal active site, wherein the multi-metal active site comprises more than one type of metal moiety;
and wherein the more than one type of metal moiety comprises Mn.

12. The method of claim 11 wherein the M-X—C catalyst is a morphologically designed porous, self-supported solid-phase material comprising atomically dispersed transition metal moieties coordinated with heteroatomic moieties or heteroatomic and carbon moieties.

13. The method of claim 11 wherein the oxyfuel is selected from the group consisting of oxalic acid, oxalate, formate, formic acid, methanol, ethanol, 2-propanol, pyruvate, ethylene glycol, malate and tartrate.

14. The method of claim 11 wherein the chemical or compound is CO 2 or CO, N 2 O and the catalyzed reaction is a reduction reaction.

15. The method of claim 14 wherein M-X—C catalyst is formed from precursors of 4-Aminoantipyrine and a metal.

16. The method of claim 11 wherein the chemical or compound is an oxyfuel and the reaction is an oxidation or reduction reaction.

17. The method of claim 11 wherein the chemical or compound is an organic airborne contaminant and the reaction is an oxidation or reduction reaction.

18. The method of claim 11 wherein the chemical or compound is an organic wastewater contaminant and the reaction is an oxidation or reduction reaction.

19. The method of claim 11 wherein the chemical or compound is an organic agricultural feedstock bio-component and the reaction is an oxidation or reduction reaction.

20. A method for chemical and electrochemical conversion and transformation of chemicals, molecules, or compounds by supplying carbon dioxide (CO 2 ) to a reactor comprising a metal-heteroatom-carbon (M-X—C) catalyst under electrocatalytic or chemical catalytic conditions at which the catalyst catalyzes/promotes an oxidation, reduction, conversion reaction, an oxygen reduction or evolution reaction, a hydrogen oxidation or evolution reaction, or electrolysis;
wherein the metal is Mn.

21. The method of claim 20 wherein the M-X—C catalyst is a morphologically designed porous, self-supported solid-phase material comprising atomically dispersed transition metal moieties coordinated with heteroatomic moieties or heteroatomic and carbon moieties.

22. The method of claim 21 wherein the catalyst is formed by:
dispersing sacrificial particles in a buffer and forming a colloidal solution therefrom;
forming a rigid three-dimensional structure from the colloidal solution; and
removing the sacrificial particles from the rigid three-dimensional structure.

Assignees

• Serov Alexey
• Atanassov Plamen
• Stc Unm

Inventors

• Serov Alexey
• Atanassov Plamen

Classifications

• B01J2219/0803

  employing electric or magnetic energy · CPC title

• B01J31/12

  containing organo-metallic compounds or metal hydrides · CPC title

• C25B1/04

  by electrolysis of water · CPC title

• B01D53/326

  in electrochemical cells · CPC title

• B01J2219/0892

  involving catalytically active material · CPC title