CN-122003295-A - Multimetal catalyst

Abstract

The present disclosure includes catalysts, including electrocatalysts. The mixed metal electrocatalyst material may comprise Ru, W, mo and/or Pd, which may be applied to reduce the need for Ir while exhibiting desirable properties. Further, a method of catalyzing a reaction may include providing a multi-metallic material comprising at least two metals, wherein a first metal is Ir and one or more other metals are from the group consisting of W, mo, re, ru, fe, pd, rh, mn and Cr, and using the multi-metallic material as a catalyst in the reaction.

Inventors

• Andre Ivanjin
• Jordan H. Swisher
• Alexander. P. Mantis
• Sari M. Zila
• Caroline B. Wall
• kevin. J. Clone De
• Yayimei E. Aviles Acosta
• Sara M. Ren

Assignees

• 马特帝琴有限公司

Dates

Publication Date

20260508

Application Date

20241009

Priority Date

20231009

Claims (20)

1. 1. A catalyst, comprising: A multi-metallic material comprising a first metal of Ir, and At least one other metal selected from the group consisting of W, mo, re, ru, fe, pd, rh, mn and Cr.
2. 2. The catalyst of claim 1, wherein the composition of the catalyst and the atomic ratio of the metal are defined by at least one of the compositions and atomic ratios of those disclosed in the sets of tables 1-19 and figures 2A-22.
3. 3. The catalyst of claim 1, wherein one or more metals in the catalyst are oxidized.
4. 4. A catalyst according to claim 3, wherein the crystallinity of the oxide can vary from amorphous to fully crystalline.
5. 5. A catalyst according to claim 3 wherein the ratio of oxide to metal is fully oxidized, partially oxidized or fully metallic.
6. 6. A catalyst according to claim 3, wherein the oxide is prepared by thermal annealing, calcination, chemical or electrochemical methods.
7. 7. The catalyst of claim 1, wherein the catalyst is unsupported or supported on carbon, silicon carbide, alumina, silica, titanium, titania, tungsten oxide, niobium oxide, indium tin oxide, fluorine doped tin oxide, graphene, or others.
8. 8. The catalyst of claim 1, wherein the catalyst comprises up to 10 atomic% of additional elements, such as Pt, os, ta, ce, ba, hf, in, sn, sb, au, ag, sr, Y, sc, nb, la, pr, sm, cu.
9. 9. The catalyst according to claim 1, wherein the catalyst contains up to 10 atomic% of additional elements such as Ni and Co, but does not include a composition consisting of Ir, ru, ni and Co only.
10. 10. The catalyst of claim 1, wherein the surface of the catalyst is nanostructured.
11. 11. The catalyst of claim 1, wherein the metal or metal oxide is deposited onto the template by at least one of electrodeposition, chemical vapor deposition, physical vapor deposition, and atomic layer deposition.
12. 12. The catalyst of claim 1, wherein the catalyst is synthesized by polymer pen lithography.
13. 13. The catalyst of claim 13, wherein the catalyst synthesis comprises one or more of adams fusion, colloid synthesis, precipitation, and spray pyrolysis.
14. 14. A method of catalyzing an electrochemical reaction, comprising: Providing a multi-metallic material comprising at least two metals, wherein the first metal is Ir and one or more other metals of the at least two metals are from the group consisting of W, mo, re, ru, fe, pd, rh, mn and Cr, and The multi-metallic material is used as a catalyst in the reaction.
15. 15. The method of claim 14, wherein the composition of the catalyst and the atomic ratio of the metal are defined by at least one of the compositions and atomic ratios disclosed in the sets of tables 1-19 and fig. 2A-22.
16. 16. The method of claim 14, wherein one or more metals in the catalyst are oxidized.
17. 17. The method of claim 16, wherein the crystallinity of the oxide can vary from amorphous to fully crystalline.
18. 18. The method of claim 16, wherein the ratio of oxide to metal is fully oxidized, partially oxidized, or fully metallic.
19. 19. The method of claim 16, wherein the oxide is prepared by thermal annealing, calcining, chemical or electrochemical methods.
20. 20. The method of claim 14, wherein the catalyst is unsupported or supported on carbon, silicon carbide, alumina, silica, titanium, titania, tungsten oxide, niobium oxide, indium tin oxide, fluorine doped tin oxide, graphene, or others.

Description

Multimetal catalyst Technical Field The present disclosure relates to catalytic compounds. More specifically, the present disclosure relates to electrocatalytic compounds. Disclosure of Invention The present application discloses one or more of the features recited in the appended claims and/or the following features, alone or in any combination, which may include patentable subject matter. According to one aspect of the present disclosure, the electrocatalyst may comprise a multi-metallic material comprising a first metal that is Ir, and at least one other metal selected from the group consisting of W, mo, re, ru, fe, pd, rh, mn and Cr. In some embodiments, the composition of the catalyst and the atomic ratio of the metal may be defined by at least one of the compositions and atomic ratios disclosed in the sets of tables 1-19 and fig. 2A-22. In some embodiments, one or more metals in the catalyst may be oxidized. Whether or not the catalyst is oxidized can affect the performance of the catalyst under different test conditions. The crystallinity of the oxide may range from amorphous to fully crystalline. The crystallinity of the oxide can affect the performance of the catalyst under different test conditions. The ratio of oxide to metal may be fully oxidized, partially oxidized or fully metallic. The oxide may be prepared by thermal annealing, calcination, chemical or electrochemical methods. In some embodiments, the electrocatalyst may include a mixed single crystalline phase nanomaterial comprising a plurality of elements. In other embodiments, the electrocatalyst material may comprise a heterogeneous mixed nanomaterial comprising a plurality of elements. In some embodiments, the catalyst may be unsupported or supported on carbon, silicon carbide, alumina, silica, titanium, titania, tungsten oxide, antimony, tantalum, platinum, niobium oxide, indium tin oxide, fluorine doped tin oxide, or graphene. In some embodiments, the catalyst may contain up to 10 atomic percent of additional elements, such as Pt, os, ta, ce, ba, hf, in, sn, sb, au, ag, sr, Y, sc, nb, la, pr, sm, cu, and in some embodiments, may also include other elements. In some embodiments, the catalyst may contain up to 10 atomic% additional elements, such as Ni and Co, but does not include a composition consisting of Ir, ru, ni, and Co alone. In some embodiments, the surface of the electrocatalyst may be nanostructured. In some embodiments, the mixed metal or mixed metal oxide may be synthesized by at least one of melting and template thermal decomposition. In some embodiments, the catalyst may be synthesized by other methods, such as colloid synthesis, polymer pen lithography (polymer pen lithography), sol-gel hydrolysis, electrodeposition (electrodeposition), and/or spray pyrolysis. According to another aspect of the present disclosure, a method of catalyzing an electrochemical reaction may include providing a multi-metallic material comprising at least two metals, wherein a first metal is Ir and one or more other metals of the at least two metals are from the group consisting of W, mo, re, ru, fe, pd, rh, mn and Cr, and applying the multi-metallic material as a catalyst in the reaction. In some embodiments, the composition of the catalyst and the atomic ratio of the metal may be defined by at least one of the compositions and atomic ratios disclosed in the sets of tables 1-19 and fig. 2A-22. In some embodiments, one or more metals in the catalyst may be oxidized. The crystallinity of the oxide may range from amorphous to fully crystalline. The ratio of oxide to metal may be fully oxidized, partially oxidized or fully metallic. The oxide may be prepared by thermal annealing, calcination, chemical or electrochemical methods. In some embodiments, the catalyst may be unsupported or supported on carbon, silicon carbide, alumina, silica, titanium, titania, tungsten oxide, niobium oxide, indium tin oxide, zirconium, tantalum, antimony, platinum, fluorine doped tin oxide, or graphene, and in some embodiments, may also include other elements. In some embodiments, the catalyst may contain up to 10 atomic percent of additional elements, such as Pt, os, ta, ce, ba, hf, in, sn, sb, au, ag, sr, Y, sc, nb, la, pr, sm, cu. The catalyst may contain up to 10 atomic% of additional elements such as Ni and Co, but does not include a composition consisting of Ir, ru, ni and Co only. In some embodiments, the surface of the catalyst may be nanostructured. The mixed metal or mixed metal oxide may be synthesized by at least one of fusion and thermal decomposition of the template. In some embodiments, the catalyst may be synthesized by other methods, such as colloid synthesis, polymer pen lithography, sol-gel hydrolysis, electrodeposition, and/or spray pyrolysis. According to another aspect of the present disclosure, a method of catalyzing an electrochemical reaction may include providing a multi-metallic material comprising at least two metals, wherein a first metal