IP Library › Granted Patent US 12,440,828
Granted Patent B2
US 12,440,828 · App. 17/758,775 · Granted Oct 14, 2025

Catalyst support

Inventors: Lucy McLeod (Reading, GB); Jonathan Sharman (Reading, GB); Geoffrey Spikes (Reading, GB); Richard Walton (Coventry, GB)
Assignee: Johnson Matthey Hydrogen Technologies Limited
B01J27/24B01J35/33H01M4/8807H01M4/8814H01M4/9075H01M8/1004H01M2008/1095
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,440,828
App. No.
17/758,775
Granted
Oct 14, 2025
Kind
B2
Abstract

The present invention provides a metal carbonitride comprising: i) a first metal, M 1 ; and ii) a second metal, M 2 ; wherein M 1 is titanium, zirconium or hafnium; and M 2 is vanadium, niobium, tantalum, chromium, molybdenum, tungsten, iron, ruthenium or osmium.

Claims (22)

1. A catalyst material comprising an electrocatalyst supported on a catalyst support material, wherein the catalyst support material comprises a metal carbonitride comprising:

(i) a first metal, M 1 ; and

(ii) a second metal, M 2 ,

wherein M 1 is titanium, zirconium, or hafnium, and M 2 is vanadium, niobium, tantalum, chromium, molybdenum, tungsten, iron, ruthenium, or osmium, and,

wherein the metal carbonitride has a composition represented as M 2 x M 1 1-x C 1-p N p , wherein x is 0.05 to 0.95 and p is 0.1 to 0.7.

2. An electrocatalyst layer comprising the catalyst material of claim 1 .

3. A catalyst coated ion-conducting membrane comprising the catalyst material of claim 1 .

4. A catalysed decal transfer substrate comprising the electrocatalyst layer of claim 2 and a decal transfer substrate.

5. A gas diffusion electrode comprising the electrocatalyst layer of claim 2 and a gas diffusion layer.

6. A membrane electrode assembly comprising the electrocatalyst layer of claim 2 .

7. A fuel cell comprising the electrocatalyst layer of claim 2 .

8. The catalyst material according to claim 1 , wherein M 1 is titanium.

9. The catalyst material according to claim 1 , wherein M 2 is vanadium, niobium or tantalum.

10. The catalyst material according to claim 1 , wherein x is 0.05 to 0.55.

11. A catalyst material comprising an electrocatalyst supported on a catalyst support material comprising nanoparticles, wherein the nanoparticles comprise a metal carbonitride comprising:

(i) a first metal, M 1 ; and

(ii) a second metal, M 2 ,

wherein M 1 is titanium, zirconium, or hafnium, and M 2 is vanadium, niobium, tantalum, chromium, molybdenum, tungsten, iron, ruthenium, or osmium, and,

wherein the metal carbonitride has a composition represented as: M 2 x M 1 1-x C 1-p N p , wherein x is 0.05 to 0.95 and p is 0.1 to 0.7.

12. The catalyst material according to claim 11 , wherein x is 0.05 to 0.55.

13. The catalyst material according to claim 11 , wherein M 1 is titanium.

14. The catalyst material according to claim 11 , wherein M 2 is vanadium, niobium or tantalum.

Assignments (3)
CHANGE OF ADDRESS Recorded Jan 14, 2026
From: JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LIMITED
To: JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LIMITED
Reel/Frame 074818/0894 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2022
From: MCLEOD, LUCY; SHARMAN, JONATHAN; SPIKES, GEOFFREY
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 060498/0571 →
CHANGE OF NAME Recorded Jul 13, 2022
From: JOHNSON MATTHEY FUEL CELLS LIMITED
To: JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LIMITED
Reel/Frame 060650/0513 →
Priority Claims (1)
GB 2003650 · Mar 13, 2020 · national
Continuity (1)
Related Publication 20230045086A1 · Feb 9, 2023
References Cited (47)
US 4333916A · Iwai · 1982 [cited by examiner]
US 5417952A · Koc · 1995 [cited by examiner]
US RE37307E · Bahar et al. · 2001 [cited by applicant]
US 7807063B2 · Liu et al. · 2010 [cited by applicant]
US 7867669B2 · Liu et al. · 2011 [cited by applicant]
US 8007561B2 · Shindo · 2011 [cited by examiner]
US 20090049953A1 · Shindo et al. · 2009 [cited by applicant]
US 20110020729A1 · Monden et al. · 2011 [cited by applicant]
US 20110117368A1 · Matsubara et al. · 2011 [cited by applicant]
US 20140004440A1 · Han · 2014 [cited by examiner]
US 20170033367A1 · Fukuta · 2017 [cited by examiner]
US 20200340083A1 · Michiuchi et al. · 2020 [cited by applicant]
CN 104961108A · 2015 [cited by examiner]
CN 104987075A · 2015 [cited by examiner]
GB 2015050864A · 2014 [cited by applicant]
JP 2006346776A · 2006 [cited by examiner]
JP 200769310A · 2007 [cited by applicant]
JP 5146121B2 · 2013 [cited by examiner]
JP 2013116458A · 2013 [cited by examiner]
WO WO0115247A2 · 2001 [cited by applicant]
WO 2005123255A1 · 2005 [cited by applicant]
WO 2010041650A1 · 2010 [cited by applicant]
WO WO2011021034A1 · 2011 [cited by applicant]
WO 2012080726A1 · 2012 [cited by applicant]
WO 2013045894A1 · 2013 [cited by applicant]
WO 2014184546A1 · 2014 [cited by applicant]
WO 2015145128A1 · 2015 [cited by applicant]
WO 2017203257A1 · 2017 [cited by applicant]
WO 2019220533A1 · 2019 [cited by applicant]
Machine translation of JP2013116458, pulication date Dec. 5, 2011. [cited by examiner]
Machine translation of JP5146121B2, publication date Feb. 20, 2013. [cited by examiner]
Ahlen et al., Synthesis and Characterisation of TaxTil-xC and TaxTi1-xCyN1-y Whiskers, Journal of the European Ceramic Society 18 (1998) 1513-1519. [cited by examiner]
Roca-Ayats et al. Titanium carbide and carbonitride electrocatalyst supports: modifying Pt-Ti interface properties by electrochemical potential cycling, J. Mater. Chem. A, 2014, 2, 18786-18790. [cited by examiner]
Roca-Ayats, PtSn nanoparticles supported on titanium carbonitride for the ethanol oxidation reaction, Applied Catalysis B: Environmental 237 (2018) 382-391. [cited by examiner]
Liang et al., Synthesis of new two-dimensional titanium carbonitride Ti2C0.5N0.5Tx MXene and its performance as an electrode material for sodium-ion battery, InfoMat. 2021;3:1422-1430. [cited by examiner]
Avasarala et al., J. Mater. Chem., 2009, 19, 1803-1805. [cited by applicant]
Cui et al., Chem. Mater., 2013, 25, 3782-3784. [cited by applicant]
Fontes, et al., Chemical Engineering Journal, 2011, 175, 534-538. [cited by applicant]
Jin, et al. Scientific Reports, 2014, 4, 1-7. [cited by applicant]
Kimmel et al., ACS Catal., 2014, 4,1558-1562. [cited by applicant]
Li et al., ACS Applied Materials & Interfaces, 2018, 10, 38117-38124. [cited by applicant]
Nam et al., Electrochim. Acta, 2010, 55, 7290-7297. [cited by applicant]
Ramanathan, et al., J. Phys. Chem., 1995, 99, 16365-16372. [cited by applicant]
Da Silva, et al., J.Solid State Chemistry, 1996, 123, 168-182. [cited by applicant]
Stamatin et al., ECS Transactions , 2013, 58, 1267-1276. [cited by applicant]
Tackett et al., Int. J. Hydrogen Energy, 2016, 41, 5948-5954. [cited by applicant]
Carlos Alberto Chagas, et al., “Synthesis of Niobium Carbonitride by Thermal Decomposition of Guanidine Oxaloniobate and Its Application to the Hydrodesulfurization of Dibenzothiophene”, Topics in Catalysis, Kluwer Acad… [cited by applicant]