Synthesis of Pd-Sn nanoparticles by using ultrasonic irradiation and their electrocatalytic activity for oxygen reduction

J. Kim*, J. Park, T. Momma, T. Osaka

*この研究の対応する著者

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

Nanoparticles of Pd-Sn were prepared under various conditions by applying ultrasonic irradiation. The Pd-Sn nanoparticles thus prepared were about 3-5 nm in diameter. The Pd in Pd-Sn nanoparticles was found to be mostly in the metallic state. The PdSn nanoparticles have a better oxygen reduction reaction (ORR) activity than Pt and Pd nanoparticles in alkaline media. The mole ratio of Pd to Sn metal ions, their initial concentrations, the amount of ethanol, which served as the reducing agent for metal ions, and the amount of citric acid in the synthesizing solution were found to affect the size and distribution of obtained Pd-Sn nanoparticles. Therefore, the electrocatalytic activity for oxygen reduction was controlled by the above factors. Particularly, the amount of citric acid is important to control the surface modification on Pd-Sn particles to adjust the electrocatalytic activity for oxygen reduction.

本文言語English
ホスト出版物のタイトルECS Transactions - Nanomaterials for Energy Conversion and Storage
出版社Electrochemical Society Inc.
ページ51-60
ページ数10
31
ISBN(電子版)9781607685395
DOI
出版ステータスPublished - 2007
イベントNanomaterials for Energy Conversion and Storage 212th Meeting of the Electrochemical Society - Washington, DC, United States
継続期間: 2007 10 72007 10 12

出版物シリーズ

名前ECS Transactions
番号31
11
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

Conference

ConferenceNanomaterials for Energy Conversion and Storage 212th Meeting of the Electrochemical Society
国/地域United States
CityWashington, DC
Period07/10/707/10/12

ASJC Scopus subject areas

  • 工学(全般)

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