IP Library Granted Patent US 10,258,968
Granted Patent B2
US 10,258,968 · App. 14/528,280 · Granted Apr 16, 2019

Catalyst coatings incorporating binder compositions

Inventors: Mark Thomas Buelow (Flemington, NJ); Steven W. Chin (Port Reading, NJ); Jeffrey Barmont Hoke (North Brunswick, NJ); Nicholas R. Leclerc (Hillsborough, NJ); David M. Robinson (Princeton, NJ)
Assignee: BASF Corporation
B01J23/75A61L9/00B01D53/8675B01D53/88B01J23/34B01J31/28B01J31/32B01J35/1019B01J35/1042B01J35/1047B01J35/1061B01J37/0215B01D2255/2073B01D2255/2092B01D2255/20746B01D2255/30B01D2255/92B01D2257/106B01D2257/404B01D2257/502B01D2257/702B01D2257/708B01D2259/4566B01J35/002B01J37/0201B01J37/0203B01J37/0219B01J2231/62
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Quick Facts
Patent No.
US 10,258,968
App. No.
14/528,280
Granted
Apr 16, 2019
Kind
B2
Abstract

Disclosed in certain implementations is a catalysis composition that includes a metal catalyst and a support material impregnated with the metal catalyst.

Claims (42)

1. A catalysis composition comprising:

a manganese oxide catalyst, wherein at least 50% of the manganese oxide catalyst is in amorphous form;

a support material impregnated with the manganese oxide catalyst;

a first binder; and

a second binder, wherein,

a coating of the catalysis composition on a substrate exhibits an ultrasonic washcoat adhesion weight loss of less than 1.60%, wherein

the support material is selected from a group consisting of ceria, lanthana, alumina, titania, silica, zirconia, carbons, metal organic framework, clay, zeolites, and combinations thereof;

wherein a cumulative pore volume of the catalysis composition is from about 0.80 mL/g to about 2.0 mL/g, an average pore radius of the catalysis composition is from about 6 nanometers to about 15 nanometers and a surface area of the catalysis composition is from about 100 m 2 /g to about 200 m 2 /g;

wherein the manganese oxide catalyst is impregnated in the support material in an amount ranging from about 10% to about 25% metal atoms by mass, based on the total composition;

the weight loss is weight difference of the coated substrate after being immersed in deionized water and exposed to ultrasonic waves at 25 kHz and 500 Watts for 5 minutes and dried at 90° C., and

wherein the first binder has a first glass transition temperature ranging from about 5° C. to about 20° C., and wherein the second binder has a second glass transition temperature that is greater than the first glass transition temperature; or

wherein the first binder has a first glass transition temperature ranging from about 70° C. to about 90° C., and wherein the second binder has a second glass transition temperature that is less than the first glass transition temperature.

2. The catalysis composition of claim 1 , wherein the ultrasonic washcoat adhesion weight loss of the substrate is less than about 1.30%.

3. The catalysis composition of claim 1 , wherein the ultrasonic washcoat adhesion weight loss of the substrate is less than about 1.15%.

4. The catalysis composition of claim 1 , wherein a mass ratio of the first binder to the second binder ranges from about 0.75 to about 1.25.

5. The catalysis composition of claim 1 , wherein at least one of the first binder or second binder is a styrene acrylic binder.

6. The catalysis composition of claim 1 , wherein the first binder has a first glass transition temperature ranging from about 5° C. to about 20° C., and wherein the second binder has a second glass transition temperature that is greater than the first glass transition temperature.

7. The catalysis composition of claim 1 , wherein the first binder has a first glass transition temperature ranging from about 8° C. to about 15° C., and wherein the second binder has a second glass transition temperature that is greater than the first glass transition temperature.

8. The catalysis composition of claim 1 , wherein the first binder has a first glass transition temperature ranging from about 70° C. to about 90° C., and wherein the second binder has a second glass transition temperature that is less than the first glass transition temperature.

9. The catalysis composition of claim 1 , wherein the first binder has a first glass transition temperature ranging from about 75° C. to about 85° C., and wherein the second binder has a second glass transition temperature that is less than the first glass transition temperature.

10. The catalysis composition of claim 1 , wherein the first binder has a first glass transition temperature ranging from about 5° C. to about 20° C., and wherein the second binder has a second glass transition temperature ranging from about 70° C. to about 90° C.

11. The catalysis composition of claim 1 , wherein the first binder has a first glass transition temperature ranging from about 8° C. to about 15° C., and wherein the second binder has a second glass transition temperature ranging from about 75° C. to about 85° C.

12. The catalysis composition of claim 1 , wherein a first mass percent of the first binder within the catalysis composition is between about 4% and about 8%, and wherein a second mass percent of the second binder within the catalysis composition is between about 4% and about 8%.

13. The catalysis composition of claim 1 , wherein the support material comprises alumina.

14. The catalysis composition of claim 1 , wherein a surface area of the catalysis composition is from about 160 m 2 /g to about 200 m 2 /g.

15. The catalysis composition of claim 1 , wherein the manganese oxide catalyst is impregnated in the support material such that at least about 15% of a total number of metal atoms in the catalysis composition are detectable by surface x-ray photoelectron spectroscopy (XPS).

16. The catalysis composition of claim 1 , wherein a cumulative pore volume of the catalysis composition is from about 0.85 mL/g to about 2.0 mL/g.

17. The catalysis composition of claim 1 , wherein the manganese oxide catalyst comprises manganese oxide crystallites.

18. The catalysis composition of claim 1 , wherein the catalysis composition, when coated onto an automobile radiator, has a deactivation factor of at least 0.7, wherein the deactivation factor is the ratio of aged catalyst % ozone conversion to fresh catalyst % ozone conversion, wherein the aged % conversion is after exposure of the coated radiator to the equivalent of 150,000 miles driving time.

19. The catalysis composition of claim 1 , wherein the support material is selected from a group consisting of alumina, silica, and combinations thereof.

20. The catalyst composition of claim 1 , wherein at least 60% of the manganese oxide catalyst is in amorphous form.

21. The catalyst composition of claim 1 , wherein at least 75% of the manganese oxide catalyst is in amorphous form.

22. The catalyst composition of claim 1 , wherein at least 85% of the manganese oxide catalyst is in amorphous form.

23. A catalysis device comprising:

an automobile component; and

the catalysis composition of claim 1 , wherein the catalysis composition is coated onto the automobile component.

24. A method of preparing a catalysis device of claim 23 , comprising:

providing a slurry of the catalysis composition, and

coating the slurry onto the automobile component to produce a catalyst layer, wherein, after coating the slurry onto the component, an ultrasonic washcoat adhesion weight loss of the substrate is less than 1.60%, wherein

the weight loss is weight difference of the coated component after being immersed in deionized water and exposed to ultrasonic waves at 25 kHz and 500 Watts for 5 minutes and dried at 90° C.

25. The method of claim 24 , wherein coating the slurry onto the component comprises drying the slurry at a temperature ranging from about 80° C. to about 120° C. to produce the catalyst layer.

26. The method of claim 24 , wherein at least one of the first binder or the second binder is a styrene acrylic binder.

Assignments (2)
NUNC PRO TUNC ASSIGNMENT Recorded Aug 8, 2024
From: BASF CORPORATION
To: BASF MOBILE EMISSIONS CATALYSTS LLC
Reel/Frame 068518/0394 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 16, 2015
From: BUELOW, MARK THOMAS; CHIN, STEVEN W.; HOKE, JEFFREY BARMONT; LECLERC, NICHOLAS R.; ROBINSON, DAVID M.
To: BASF CORPORATION
Reel/Frame 035429/0805 →
Continuity (2)
Provisional Application 61897557 · Oct 30, 2013
Related Publication 20150119235A1 · Apr 30, 2015
Cited By (1)
US 12,188,397