Catalytically active material, method for producing same, and use thereof

Patent metadata

Field	Value
Publication number	US-10099206-B2
Application number	US-201615355572-A
Country	US
Kind code	B2
Filing date	Nov 18, 2016
Priority date	Nov 19, 2015
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A catalytically active material is provided. The material includes a mixed oxide having a first metal selected from group 4 of the periodic table of elements and/or a second metal, and at least one further metal selected from group 11 of the periodic table of elements, wherein the macroscopic composition of the material given by the chemical formula corresponds to the composition of the material at a molecular level. A coating made of such a material is also provide, as is an article having such a coating, and a method for producing such a material.

First claim

What is claimed is:

1. A mixed oxide catalytically active material, comprising:
a first metal (M 1 ) selected from group 4 of the periodic table of elements and/or a second metal (M 2 );
a third metal (M 3 ) selected from group 11 of the periodic table of elements, wherein each of the first and/or second and third metals (M 1 , M 2 , M 3 ) is present at an oxidation state greater than 0 and mixed at a molecular level so that a macroscopic composition given by the chemical formula of the material corresponds to the composition of the material at the molecular level;
a catalytic activity that occurs at temperatures below 300° C., wherein the catalytic activity is defined as a start of oxidative decomposition of organic carbonaceous combustion products;
a ratio V M,atomic of a content of the third metal (M 3 ) to a sum of contents of the other metals (M 1 , M 2 ) based on the atomic composition,

V

M
,
atomic

=

M
⁢
3

∑

⁢

(

M
⁢
1

+

M
⁢
2

)

,

is between 1 and 1:6; and

a temperature resistance of at least 600° C.

2. The catalytically active material of claim 1 , wherein the ratio V M,atomic is between 1 and 1:3.

3. The catalytically active material of claim 1 , wherein the first metal (M 1 ) comprises titanium and/or zirconium.

4. The catalytically active material of claim 1 , wherein the second metal (M 2 ) comprises a lanthanide.

5. The catalytically active material of claim 1 , wherein the second metal (M 2 ) comprises cerium.

6. The catalytically active material of claim 1 , wherein the third metal (M 3 ) is copper.

7. The catalytically active material of claim 1 , further comprising an atomic ratio of the first metal (M 1 ) to the second metal (M 2 ) of 1:4.

8. The catalytically active material of claim 1 , further comprising a porosity of less than 25 vol %.

9. The catalytically active material of claim 1 , further comprising a refractive index between 1.7 and 2.2 at a wavelength of 589 nm.

10. A coating made of the catalytically active material of claim 1 .

11. The coating of claim 10 , comprising a transmittance of greater than 80% for electromagnetic radiation in a range from 380 to 780 nm.

12. The coating of claim 10 , further comprising one or more components selected from the group consisting of Si, Al, Na, Li, Sr, B, P, Sb, Ti, F, MgF 2 , CaF 2 , and combinations thereof.

13. The coating of claim 10 , further comprising inorganic amorphous and/or crystalline nanoparticles.

14. The coating of claim 10 , further comprising oxidic nanoparticles having a mean diameter from 4 nm to 30 nm.

15. A mixed oxide catalytically active material, comprising:
a first metal (M 1 ) selected from group 4 of the periodic table of elements and/or a second metal (M 2 );
a third metal (M 3 ) selected from group 11 of the periodic table of elements, wherein each of the first and/or second and third metals (M 1 , M 2 , M 3 ) is present at an oxidation state greater than 0 and mixed at a molecular level so that a macroscopic composition given by the chemical formula of the material corresponds to the composition of the material at the molecular level;
a catalytic activity that occurs at temperatures below 300° C., wherein the catalytic activity is defined as a start of oxidative decomposition of organic carbonaceous combustion products;
a ratio V M,atomic of a content of the third metal (M 3 ) to a sum of contents of the other metals (M 1 , M 2 ) based on the atomic composition,

V

M
,
atomic

=

M
⁢
3

∑

⁢

(

M
⁢
1

+

M
⁢
2

)

,

is between 1 and 1:6; and

at least in part, a nanocrystalline fraction, wherein the nanocrystalline fraction is greater than 25 vol %.

16. The catalytically active material of claim 15 , wherein the nanocrystalline fraction comprises nanocrystals having a crystallite size from 4 to 50 nm, wherein the crystallite size is specified as a mean diameter of the crystallites.

17. The catalytically active material of claim 15 , further comprising a granular structure in which nanocrystals of the nanocrystalline fraction do not have a preferred orientation so that the nanocrystals are randomly distributed.

18. A mixed oxide catalytically active material, comprising:
a first metal (M 1 ) selected from group 4 of the periodic table of elements and/or a second metal (M 2 ), the second metal (M 2 ) comprising a lanthanide;
a third metal (M 3 ) selected from group 11 of the periodic table of elements, wherein each of the first and/or second and third metals (M 1 , M 2 , M 3 ) is present at an oxidation state greater than 0 and mixed at a molecular level so that a macroscopic composition given by the chemical formula of the material corresponds to the composition of the material at the molecular level;
a catalytic activity that occurs at temperatures below 300° C., wherein the catalytic activity is defined as a start of oxidative decomposition of organic carbonaceous combustion products;
a ratio V M,atomic of a content of the third metal (M 3 ) to a sum of contents of the other metals (M 1 , M 2 ) based on the atomic composition,

V

M
,
atomic

=

M
⁢

Assignees

• Schott Ag

Inventors

• Herrmann Jochem
• Henn Christian
• Schuhmacher Joerg
• Woelfinger Matthias
• Muhler Martin
• Emmerich Thomas

Classifications

• B01J35/0006

  Operations & Transport · mapped topic

• B01J37/0215

  Coating · CPC title

• B01D53/8687

  Organic components · CPC title

• B01D2255/9205

  Porosity · CPC title

• B01D2255/20707

  Titanium · CPC title