Excellent durability of carbon-supported Pt cathode catalysts covered with silica layers

Hiroshi Matsumori, Sakae Takenaka, Hideki Matsune, Masahiro Kishida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Multi-walled carbon nanotube-supported platinum electrocatalysts (Pt/CNT) for cathode in polymer electrolyte fuel cells were covered with silica layers (SiO2/Pt/CNT) in order to improve the durability. SiO 2/Pt/CNT had a high catalytic activity in spite of uniform coverage of Pt metal with silica which was an insulator. The catalytic activity of SiO2/Pt/CNT did not change appreciably during the durability test (repeated potential cycling between 0.05 and 1.20V vs. RHE), whereas Pt/CNT was seriously deactivated. Silica layer which enveloped Pt metal particles in SiO2/Pt/CNT prevented the agglomeration of Pt metal particles as well as the growth of Pt metal particles in size through dissolution and redeposition of Pt metal.

Original languageEnglish
Title of host publicationECS Transactions - Proton Exchange Membrane Fuel Cells 9
Pages689-696
Number of pages8
Volume25
Edition1 PART 1
DOIs
Publication statusPublished - 2009
Event9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society - Vienna, Austria
Duration: Oct 4 2009Oct 9 2009

Other

Other9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society
CountryAustria
CityVienna
Period10/4/0910/9/09

Fingerprint

Durability
Cathodes
Silica
Catalysts
Carbon
Metals
Catalyst activity
Electrocatalysts
Fuel cells
Platinum
Carbon nanotubes
Dissolution
Agglomeration
Electrolytes
Polymers

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Matsumori, H., Takenaka, S., Matsune, H., & Kishida, M. (2009). Excellent durability of carbon-supported Pt cathode catalysts covered with silica layers. In ECS Transactions - Proton Exchange Membrane Fuel Cells 9 (1 PART 1 ed., Vol. 25, pp. 689-696) https://doi.org/10.1149/1.3210620

Excellent durability of carbon-supported Pt cathode catalysts covered with silica layers. / Matsumori, Hiroshi; Takenaka, Sakae; Matsune, Hideki; Kishida, Masahiro.

ECS Transactions - Proton Exchange Membrane Fuel Cells 9. Vol. 25 1 PART 1. ed. 2009. p. 689-696.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Matsumori, H, Takenaka, S, Matsune, H & Kishida, M 2009, Excellent durability of carbon-supported Pt cathode catalysts covered with silica layers. in ECS Transactions - Proton Exchange Membrane Fuel Cells 9. 1 PART 1 edn, vol. 25, pp. 689-696, 9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society, Vienna, Austria, 10/4/09. https://doi.org/10.1149/1.3210620
Matsumori H, Takenaka S, Matsune H, Kishida M. Excellent durability of carbon-supported Pt cathode catalysts covered with silica layers. In ECS Transactions - Proton Exchange Membrane Fuel Cells 9. 1 PART 1 ed. Vol. 25. 2009. p. 689-696 https://doi.org/10.1149/1.3210620
Matsumori, Hiroshi ; Takenaka, Sakae ; Matsune, Hideki ; Kishida, Masahiro. / Excellent durability of carbon-supported Pt cathode catalysts covered with silica layers. ECS Transactions - Proton Exchange Membrane Fuel Cells 9. Vol. 25 1 PART 1. ed. 2009. pp. 689-696
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