Compositions including ionic liquids and methods of making the same

Patent metadata

Field	Value
Publication number	US-12098469-B2
Application number	US-202117487108-A
Country	US
Kind code	B2
Filing date	Sep 28, 2021
Priority date	Sep 30, 2020
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

The present disclosure relates to a composition that includes a solid, a first layer of an ionic liquid including an anion and a cation, a second layer including an ionically conductive ionomer, and a catalyst including a metal positioned on the solid, where the ionic liquid forms a first layer on the solid, the first layer is positioned between the second layer and the solid, and the catalyst is positioned between the solid and the first layer.

First claim

What is claimed is:

1. A composition comprising:
a solid comprising at least one of carbon or a metal oxide;
a first layer comprising an ionic liquid comprising an anion and a cation;
a second layer comprising an ionically conductive ionomer; and
a catalyst comprising at least one of bismuth, lead, or tin positioned on the solid;

wherein:
the anion comprises at least one of bis(trifluoromethylsulfonyl)imide, tetrafluoroborate, or hexafluorophosphate,
the cation comprises at least one of an imidazolium-based cation, a pyridinium-based cation, a guanidinium-based cation, or a pyrazolium-based cation,
the ionic liquid forms a first layer on the solid,
the first layer is positioned between the second layer and the solid, and
the catalyst is positioned between the solid and the first layer.

2. The composition of claim 1 , wherein the solid comprises a porous material.

3. The composition of claim 2 , wherein the catalyst is positioned within a pore of the porous material.

4. The composition of claim 1 , wherein the solid has an average particle size between about 10 nm and about 1 mm.

5. The composition of claim 1 , wherein the imidazolium-based cation comprises at least one of 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene, 1-butyl-3-methyl-imidazolium, or 1-ethyl-3-methylimidazolium.

6. The composition of claim 1 , wherein the metal oxide comprises at least one of alumina, silica, or titania.

7. The composition of claim 1 , wherein the carbon comprises a furnace black.

8. The composition of claim 7 , wherein the furnace black comprises an oxidized acetylene black.

9. The composition of claim 1 , wherein the solid has an average particle size between about 10 nm and about 1 mm.

Assignees

• Alliance Sustainable Energy
• Univ Drexel

Inventors

• Li Yawei
• Neyerlin Kenneth Charles
• Snyder Joshua David

Classifications

• H01M4/88

  Processes of manufacture · CPC title

• H01M8/10

  Fuel cells with solid electrolytes · CPC title

• H01M4/86

  Inert electrodes with catalytic activity, e.g. for fuel cells · CPC title

• Y02E60/50

  Fuel cells · CPC title

• H01M4/925

  supported on carriers, e.g. powder carriers · CPC title