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：US20140349215A1

公开(公告)日：2014-11-27

申请号：US14368133

申请日：2012-12-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mark K. Debe ,  Amy E. Hester

IPC: H01M4/90 ,  H01M4/88 ,  H01M4/92

CPC classification number: H01M4/9075 ,  H01M4/8657 ,  H01M4/8803 ,  H01M4/8807 ,  H01M4/881 ,  H01M4/8814 ,  H01M4/8871 ,  H01M4/921 ,  H01M4/925 ,  H01M8/1004 ,  H01M2008/1095

Abstract: Electrochemical cell electrode (100) comprising a nanostructured catalyst support layer (102) having first and second generally opposed major sides (103,104). The first side (103) comprises nanostructured elements (106) comprising support whiskers (108) projecting away from the first side (103). The support whiskers (108) have a first nanoscopic electrocatalyst layer (110) thereon, and a second nanoscopic electrocatalyst layer (112) on the second side (104) comprising a precious metal alloy. Electrochemical cell electrodes (100) described herein are useful, for example, as a fuel cell catalyst electrode for a fuel cell.

Abstract translation: 电化学电池电极（100）包括具有第一和第二大致相对的主边（103,104）的纳米结构催化剂载体层（102）。 第一侧（103）包括纳米结构元件（106），其包括远离第一侧（103）突出的支撑晶须（108）。 支撑晶须（108）上具有第一纳米级电催化剂层（110），在第二侧（104）上具有贵金属合金的第二纳米级电催化剂层（112）。 本文所述的电化学电池电极（100）例如可用作燃料电池用燃料电池用催化剂电极。

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：US11936050B2

公开(公告)日：2024-03-19

申请号：US17645072

申请日：2021-12-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: H01M4/92 ,  B01J23/89 ,  H01M4/86 ,  H01M4/88 ,  H01M4/98 ,  H01M8/10

CPC classification number: H01M4/921 ,  B01J23/892 ,  H01M4/8605 ,  H01M4/8871 ,  H01M4/8878 ,  H01M4/8882 ,  H01M4/98 ,  H01M8/10 ,  H01M4/925 ,  H01M2008/1095

Abstract: Nanoporous oxygen reduction catalyst material comprising PtNiIr. The nanoporous oxygen reduction catalyst material is 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：US11258074B2

公开(公告)日：2022-02-22

申请号：US16344765

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: H01M8/10 ,  H01M4/92 ,  H01M4/88 ,  B01J23/89 ,  H01M4/86 ,  H01M4/98

Abstract: Nanoporous oxygen reduction catalyst material comprising PtNiIr, the catalyst material preferably 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. The nanoporous oxygen reduction catalyst material is 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.

公开(公告)号：US20210008528A1

公开(公告)日：2021-01-14

申请号：US15733646

申请日：2019-03-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: B01J23/89 ,  B01J23/46 ,  B01J23/42 ,  B01J37/02 ,  H01M4/86 ,  H01M4/90

Abstract: Catalysts comprising nanostmctured 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 Ru, wherein the Pt is present in a range from 33.9 to 35.9 atomic percent, the Ni is present in a range from 60.3 to 63.9 atomic percent, and the Ru is present in a range from 0.5 to 9.9 atomic percent and wherein the total atomic percent of Pt, Ni, and Ru equals 100. Catalyst described herein are useful, 0 for example, in fuel cell membrane electrode assemblies.