公开(公告)号：US20210066724A1

公开(公告)日：2021-03-04

申请号：US15733736

申请日：2019-04-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J. L. Steinbach ,  Andrew T. Haug ,  Krzysztof A. Lewinski ,  Amy E. Hester ,  Grant M. Thoma ,  Cedric Bedoya ,  James A. Phipps ,  David J. Rowe ,  Cemal S. Duru

IPC: H01M4/86 ,  H01M4/90 ,  H01M4/88 ,  H01M4/92 ,  H01M4/94

Abstract: Catalyst comprising a first layer having an outer layer with a layer comprising Pt directly thereon, wherein the first layer has an average thickness in a range from 0.04 to 30 nanometers, and wherein the layer. Catalysts described herein are useful, for example, in fuel cell membrane electrode assemblies.

公开(公告)号：US20210408555A1

公开(公告)日：2021-12-30

申请号：US15733735

申请日：2019-04-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J.L. Steinbach ,  Andrew T. Haug ,  Krzysztof A. Lewinski ,  Amy E. Hester ,  Grant M. Thoma ,  Cedric Bedoya

IPC: H01M4/92

Abstract: Catalyst comprising an Ir layer having an outer layer with a layer comprising Pt directly thereon, wherein the Ir layer has an average thickness in a range from 0.04 to 30 nanometers, wherein the layer comprising Pt has an average thickness in a range from 0.04 to 50 nanometers, and wherein the Pt and Ir are present in an atomic ratio in a range from 0.01:1 to 10:1. Catalysts described herein are useful, for example, in fuel cell membrane electrode assemblies.

公开(公告)号：US20210013521A1

公开(公告)日：2021-01-14

申请号：US15733644

申请日：2019-03-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J. L. Steinbach ,  Krzysztof A. Lewinski ,  Andrew T. Haug ,  Amy E. Hester ,  Sean M. Luopa ,  Grant M. Thoma

IPC: H01M4/92 ,  H01M8/1004 ,  H01M4/86 ,  H01M4/90

Abstract: Catalysts comprising nanostructured elements comprising microstructured whiskers having an outer surface at least partially covered by a catalyst material comprising at least 90 atomic percent collectively Pt, Ni, and Ta, wherein the Pt is present in a range from 32.0 to 35.7 atomic percent, the Ni is present in a range from 57.2 to 64.0 atomic percent, and the Ta is present in a range from 0.26 to 10.8 atomic percent, and wherein the total atomic percent of Pt, Ni, and Ta equals 100. Catalyst described herein are useful, for example, in fuel cell membrane electrode assemblies.

公开(公告)号：US20220059849A1

公开(公告)日：2022-02-24

申请号：US17309508

申请日：2019-10-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J. L. Steinbach ,  Amy E. Hester ,  Sean M. Luopa ,  Andrew T. Haug ,  Krzysztof A. Lewinski ,  Grant M. Thoma

IPC: H01M4/92 ,  H01M4/88 ,  H01M4/90

Abstract: Catalyst material comprising nanoparticles dispersed within a metal oxide layer, the metal oxide layer comprises metal oxide comprising at least one metal cation, wherein the nanoparticles comprise Pt, wherein the nanoparticles comprise less than 10 atom % of oxygen, and wherein the metal oxide layer has an average thickness not greater than 50 nanometers. The catalyst material comprising nanoparticles dispersed within a metal oxide layer can be converted, for example, to nanoporous catalyst layer comprising nanoparticles fused together, wherein the nanoparticles comprise Pt, wherein the nanoparticles comprise less than 10 atom % of oxygen, and wherein the layer has an average thickness not greater than 50 nanometers. The nanoporous catalyst layer is useful, for example, in fuel cell membrane electrode assemblies.

公开(公告)号：US20210075026A1

公开(公告)日：2021-03-11

申请号：US17047029

申请日：2019-04-11

Applicant: 3M Innovative Properties Company

Inventor： Andrew J. L. Steinbach ,  Andrew T. Haug ,  Krzysztof A. Lewinski ,  Amy E. Hester ,  Grant M. Thoma ,  Cedric Bedoya ,  Zhenhua Zeng ,  Jeffrey P. Greeley

IPC: H01M4/90 ,  H01M4/92 ,  H01M4/86

Abstract: Catalysts comprising a Ta layer having an outer layer with a layer comprising Pt directly thereon, wherein the Ta layer has an average thickness in a range from 0.04 to 30 nanometers, wherein the layer comprising Pt has an average thickness in a range from 0.04 to 50 nanometers, and wherein the Pt and Ta are present in an atomic ratio in a range from 0.01:1 to 10:1. Catalyst described herein are useful, for example, in fuel cell membrane electrode assemblies.

公开(公告)号：US11990626B2

公开(公告)日：2024-05-21

申请号：US15733735

申请日：2019-04-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J. L. Steinbach ,  Andrew T. Haug ,  Krzysztof A. Lewinski ,  Amy E. Hester ,  Grant M. Thoma ,  Cedric Bedoya

IPC: H01M4/92 ,  B01J23/42 ,  B01J23/46 ,  H01M8/10

CPC classification number: H01M4/921 ,  H01M2008/1095

Abstract: Catalyst comprising an Ir layer having an outer layer with a layer comprising Pt directly thereon, wherein the Ir layer has an average thickness in a range from 0.04 to 30 nanometers, wherein the layer comprising Pt has an average thickness in a range from 0.04 to 50 nanometers, and wherein the Pt and Ir are present in an atomic ratio in a range from 0.01:1 to 10:1. Catalysts described herein are useful, for example, in fuel cell membrane electrode assemblies.

公开(公告)号：US11973232B2

公开(公告)日：2024-04-30

申请号：US17045101

申请日：2019-03-27

Applicant: 3M Innovative Properties Company

Inventor： Andrew J. L. Steinbach ,  Andrew T. Haug ,  Amy Hester ,  Krzysztof A. Lewinski ,  Sean M. Luopa ,  Grant M. Thoma ,  Jonah D. Erlebacher

IPC: H01M4/90 ,  C22C5/04 ,  H01M4/92

CPC classification number: H01M4/9058 ,  C22C5/04 ,  H01M4/926

Abstract: Nanoporous oxygen reduction catalyst material comprising at least 90 collectively Pt, Ni, and Ta. The nanoporous oxygen reduction catalyst material is useful, for example, in fuel cell membrane electrode assemblies.

公开(公告)号：US11955645B2

公开(公告)日：2024-04-09

申请号：US17047029

申请日：2019-04-11

Applicant: 3M Innovative Properties Company

Inventor： Andrew J. L. Steinbach ,  Andrew T. Haug ,  Krzysztof A. Lewinski ,  Amy E. Hester ,  Grant M. Thoma ,  Cedric Bedoya ,  Zhenhua Zeng ,  Jeffrey P. Greeley

IPC: H01M4/90 ,  H01M4/86 ,  H01M4/92

CPC classification number: H01M4/9041 ,  H01M4/8657 ,  H01M4/9058 ,  H01M4/92

Abstract: Catalysts comprising a Ta layer having an outer layer with a layer comprising Pt directly thereon, wherein the Ta layer has an average thickness in a range from 0.04 to 30 nanometers, wherein the layer comprising Pt has an average thickness in a range from 0.04 to 50 nanometers, and wherein the Pt and Ta are present in an atomic ratio in a range from 0.01:1 to 10:1. Catalyst described herein are useful, for example, in fuel cell membrane electrode assemblies.

公开(公告)号：US11476470B2

公开(公告)日：2022-10-18

申请号：US15733736

申请日：2019-04-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J. L. Steinbach ,  Andrew T. Haug ,  Krzysztof A. Lewinski ,  Amy E. Hester ,  Grant M. Thoma ,  Cedric Bedoya ,  James A. Phipps ,  David J. Rowe ,  Cemal S. Duru

IPC: H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M4/94

Abstract: Catalyst comprising a first layer having an outer layer with a layer comprising Pt directly thereon, wherein the first layer has an average thickness in a range from 0.04 to 30 nanometers, and wherein the layer. Catalysts described herein are useful, for example, in fuel cell membrane electrode assemblies.

公开(公告)号：US20210013522A1

公开(公告)日：2021-01-14

申请号：US15733645

申请日：2019-03-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J.L. Steinbach ,  Amy E. Hester ,  Andrew T. Haug ,  Krzysztof A. Lewinski ,  Sean M. Luopa ,  Grant M. Thoma

IPC: H01M4/92 ,  H01M8/1004 ,  H01M4/86 ,  H01M4/90

Abstract: Catalysts comprising nanostructured elements comprising microstructured whiskers having an outer surface at least partially covered by a catalyst material comprising at least 90 atomic percent collectively Pt, Ni, and Cr, wherein the Pt is present in a range from 32.4 to 35.8 atomic percent, the Ni is present in a range from 57.7 to 63.7 atomic percent, and the Cr is present in a range from 0.5 to 10.0 atomic percent, and wherein the total atomic percent of Pt, Ni, and Cr equals 100. Catalyst described herein are useful, for example, in fuel cell membrane electrode assemblies.