Preparation of carbon-supported Pt-Co alloy nanoparticles for oxygen reduction reaction

promotion of Pt-Co alloy formation by coverage with silica

Sakae Takenaka, Akiko Hirata, Hideki Matsune, Masahiro Kishida

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Carbon-supported Pt-Co catalyst for the oxygen reduction reaction was covered with silica layers to inhibit sintering of the metal particles. Coverage of the Pt-Co catalyst with silica layers promoted the formation of alloys with small diameters during treatment at 973 K. The silica-coated Pt-Co electrocatalyst showed a large electrochemically active surface area (ECSA) and excellent durability.

Original languageEnglish
Pages (from-to)458-459
Number of pages2
JournalChemistry Letters
Volume39
Issue number5
DOIs
Publication statusPublished - 2010

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Silicon Dioxide
Carbon
Oxygen
Nanoparticles
Catalysts
Electrocatalysts
Durability
Sintering
Metals

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

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abstract = "Carbon-supported Pt-Co catalyst for the oxygen reduction reaction was covered with silica layers to inhibit sintering of the metal particles. Coverage of the Pt-Co catalyst with silica layers promoted the formation of alloys with small diameters during treatment at 973 K. The silica-coated Pt-Co electrocatalyst showed a large electrochemically active surface area (ECSA) and excellent durability.",
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AU - Matsune, Hideki

AU - Kishida, Masahiro

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AB - Carbon-supported Pt-Co catalyst for the oxygen reduction reaction was covered with silica layers to inhibit sintering of the metal particles. Coverage of the Pt-Co catalyst with silica layers promoted the formation of alloys with small diameters during treatment at 973 K. The silica-coated Pt-Co electrocatalyst showed a large electrochemically active surface area (ECSA) and excellent durability.

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