Improvement in activity of highly durable silica-coated Pd/CNT cathode catalysts for PEFC by addition of Cu

Sakae Takenaka, Hiroyuki Miyata, Tomoharu Tsukamoto, Hideki Matsune, Masahiro Kishida

研究成果: 著書/レポートタイプへの貢献会議での発言

1 引用 (Scopus)

抄録

We have previously demonstrated that silica-coated Pd cathode catalysts show high durability under severe cathode conditions in polymer electrolyte fuel cells (PEFCs), while Pd catalysts without silica-coating seriously deactivate under the same conditions due to the dissolution of Pd metal. However, the activity of silica-coated Pd catalysts for the oxygen reduction reaction (ORR) was inferior to that of Pt catalysts used in state of the art PEFCs. In the present study, the ORR activity of Pd catalysts was improved by addition of Cu. Cu-added Pd catalyst prepared with a conventional impregnation method using mixed aqueous solutions of PdCl2 and Cu(NO3)2 had an ORR activity twice that of Pd catalysts. XRD and XAFS studies showed alloy formation between Pd and Cu. Thus, Pd-Cu alloys showed higher activity for the ORR compared with Pd metal.

元の言語英語
ホスト出版物のタイトルPolymer Electrolyte Fuel Cells 12, PEFC 2012
ページ1715-1722
ページ数8
エディション2
DOI
出版物ステータス出版済み - 12 1 2012
イベント12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting - Honolulu, HI, 米国
継続期間: 10 7 201210 12 2012

出版物シリーズ

名前ECS Transactions
番号2
50
ISSN(印刷物)1938-5862
ISSN(電子版)1938-6737

その他

その他12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting
米国
Honolulu, HI
期間10/7/1210/12/12

Fingerprint

Fuel cells
Cathodes
Electrolytes
Silica
Catalysts
Polymers
Oxygen
Metals
Impregnation
Dissolution
Durability
Coatings

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Takenaka, S., Miyata, H., Tsukamoto, T., Matsune, H., & Kishida, M. (2012). Improvement in activity of highly durable silica-coated Pd/CNT cathode catalysts for PEFC by addition of Cu. : Polymer Electrolyte Fuel Cells 12, PEFC 2012 (2 版, pp. 1715-1722). (ECS Transactions; 巻数 50, 番号 2). https://doi.org/10.1149/05002.1715ecst

Improvement in activity of highly durable silica-coated Pd/CNT cathode catalysts for PEFC by addition of Cu. / Takenaka, Sakae; Miyata, Hiroyuki; Tsukamoto, Tomoharu; Matsune, Hideki; Kishida, Masahiro.

Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2. 編 2012. p. 1715-1722 (ECS Transactions; 巻 50, 番号 2).

研究成果: 著書/レポートタイプへの貢献会議での発言

Takenaka, S, Miyata, H, Tsukamoto, T, Matsune, H & Kishida, M 2012, Improvement in activity of highly durable silica-coated Pd/CNT cathode catalysts for PEFC by addition of Cu. : Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2 Edn, ECS Transactions, 番号 2, 巻. 50, pp. 1715-1722, 12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting, Honolulu, HI, 米国, 10/7/12. https://doi.org/10.1149/05002.1715ecst
Takenaka S, Miyata H, Tsukamoto T, Matsune H, Kishida M. Improvement in activity of highly durable silica-coated Pd/CNT cathode catalysts for PEFC by addition of Cu. : Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2 版 2012. p. 1715-1722. (ECS Transactions; 2). https://doi.org/10.1149/05002.1715ecst
Takenaka, Sakae ; Miyata, Hiroyuki ; Tsukamoto, Tomoharu ; Matsune, Hideki ; Kishida, Masahiro. / Improvement in activity of highly durable silica-coated Pd/CNT cathode catalysts for PEFC by addition of Cu. Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2. 版 2012. pp. 1715-1722 (ECS Transactions; 2).
@inproceedings{20733422715a4cbc85166296175cba91,
title = "Improvement in activity of highly durable silica-coated Pd/CNT cathode catalysts for PEFC by addition of Cu",
abstract = "We have previously demonstrated that silica-coated Pd cathode catalysts show high durability under severe cathode conditions in polymer electrolyte fuel cells (PEFCs), while Pd catalysts without silica-coating seriously deactivate under the same conditions due to the dissolution of Pd metal. However, the activity of silica-coated Pd catalysts for the oxygen reduction reaction (ORR) was inferior to that of Pt catalysts used in state of the art PEFCs. In the present study, the ORR activity of Pd catalysts was improved by addition of Cu. Cu-added Pd catalyst prepared with a conventional impregnation method using mixed aqueous solutions of PdCl2 and Cu(NO3)2 had an ORR activity twice that of Pd catalysts. XRD and XAFS studies showed alloy formation between Pd and Cu. Thus, Pd-Cu alloys showed higher activity for the ORR compared with Pd metal.",
author = "Sakae Takenaka and Hiroyuki Miyata and Tomoharu Tsukamoto and Hideki Matsune and Masahiro Kishida",
year = "2012",
month = "12",
day = "1",
doi = "10.1149/05002.1715ecst",
language = "English",
isbn = "9781607683506",
series = "ECS Transactions",
number = "2",
pages = "1715--1722",
booktitle = "Polymer Electrolyte Fuel Cells 12, PEFC 2012",
edition = "2",

}

TY - GEN

T1 - Improvement in activity of highly durable silica-coated Pd/CNT cathode catalysts for PEFC by addition of Cu

AU - Takenaka, Sakae

AU - Miyata, Hiroyuki

AU - Tsukamoto, Tomoharu

AU - Matsune, Hideki

AU - Kishida, Masahiro

PY - 2012/12/1

Y1 - 2012/12/1

N2 - We have previously demonstrated that silica-coated Pd cathode catalysts show high durability under severe cathode conditions in polymer electrolyte fuel cells (PEFCs), while Pd catalysts without silica-coating seriously deactivate under the same conditions due to the dissolution of Pd metal. However, the activity of silica-coated Pd catalysts for the oxygen reduction reaction (ORR) was inferior to that of Pt catalysts used in state of the art PEFCs. In the present study, the ORR activity of Pd catalysts was improved by addition of Cu. Cu-added Pd catalyst prepared with a conventional impregnation method using mixed aqueous solutions of PdCl2 and Cu(NO3)2 had an ORR activity twice that of Pd catalysts. XRD and XAFS studies showed alloy formation between Pd and Cu. Thus, Pd-Cu alloys showed higher activity for the ORR compared with Pd metal.

AB - We have previously demonstrated that silica-coated Pd cathode catalysts show high durability under severe cathode conditions in polymer electrolyte fuel cells (PEFCs), while Pd catalysts without silica-coating seriously deactivate under the same conditions due to the dissolution of Pd metal. However, the activity of silica-coated Pd catalysts for the oxygen reduction reaction (ORR) was inferior to that of Pt catalysts used in state of the art PEFCs. In the present study, the ORR activity of Pd catalysts was improved by addition of Cu. Cu-added Pd catalyst prepared with a conventional impregnation method using mixed aqueous solutions of PdCl2 and Cu(NO3)2 had an ORR activity twice that of Pd catalysts. XRD and XAFS studies showed alloy formation between Pd and Cu. Thus, Pd-Cu alloys showed higher activity for the ORR compared with Pd metal.

UR - http://www.scopus.com/inward/record.url?scp=84885694622&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84885694622&partnerID=8YFLogxK

U2 - 10.1149/05002.1715ecst

DO - 10.1149/05002.1715ecst

M3 - Conference contribution

AN - SCOPUS:84885694622

SN - 9781607683506

T3 - ECS Transactions

SP - 1715

EP - 1722

BT - Polymer Electrolyte Fuel Cells 12, PEFC 2012

ER -