公开(公告)号：US10991952B2

公开(公告)日：2021-04-27

申请号：US16344769

申请日：2017-10-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J. L. Steinbach ,  Amy E. Hester ,  Dennis F. Van Der Vliet

IPC: H01M4/02 ,  H01M4/92 ,  H01M4/88 ,  H01M4/90 ,  H01M8/1018

Abstract: Catalysts comprising nanostructured elements comprising microstructured whiskers having an outer surface at least partially covered by a catalyst material having the formula PtxNiyAuz, wherein x is in a range from 27.3 to 29.9, y is in a range from 63.0 to 70.0, and z is in a range from 0.1 to 9.6. Catalyst described herein are useful, for example, in fuel cell membrane electrode assemblies.

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：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：US11196055B2

公开(公告)日：2021-12-07

申请号：US16344773

申请日：2017-10-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J. L. Steinbach ,  Amy E. Hester ,  Dennis F. Van Der Vliet

IPC: H01M4/92 ,  H01M4/90 ,  H01M8/1018

Abstract: Nanoporous oxygen reduction catalyst material comprising PtNiAu. The nanoporous oxygen reduction catalyst material is 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：US20190273265A1

公开(公告)日：2019-09-05

申请号：US16344740

申请日：2017-10-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew J. L. Steinbach ,  Amy E. Hester ,  Dennis F. Van Der Vliet

IPC: H01M4/92 ,  H01M4/88 ,  H01M4/98

Abstract: Catalyst (100) comprising nanostructured elements (102) comprising microstructured whiskers (104) having an outer surface (105) at least partially covered by a catalyst material (106) having the formula PtxNiyIrz, wherein x is in a range from 26.6 to 47.8, y is in a range from 48.7 to 70, and z is in a range from 1 to 11.4. Catalysts 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：US12199290B2

公开(公告)日：2025-01-14

申请号：US17288021

申请日：2019-10-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew T. Haug ,  John E. Abulu ,  Matthew J. Lindell ,  Tyler S. Matthews ,  Andrew J. L. Steinbach ,  Fuxia Sun ,  Michael A. Yandrasits

IPC: H01M4/92 ,  C09D127/18 ,  C09D141/00 ,  H01M4/86 ,  H01M4/88

Abstract: Described herein is a coating composition comprising: (a) a metal catalyst, wherein the metal catalyst comprises at least one of platinum, ruthenium, iridium, and alloys and combinations thereof; (b) an at least highly fluorinated ionomer comprising a polymer backbone and a plurality of first side chains pendant therefrom, wherein the first side chain comprises at least one protogenic group, wherein the protogenic group is selected from a sulfonic acid, a bis(sulfonyl)imide, a sulfonamide, a sulfonyl methide, and salts and combinations thereof, and wherein the polymer backbone comprises an average of at least 14 carbon atoms between adjacent first side chains along the polymer backbone; and (c) a solvent. Such coating compositions may be used to make electrodes for electrochemical cells and have been shown to have reduced poisoning of the catalyst.