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

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

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

6 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationECS Transactions - Nanomaterials for Energy Conversion and Storage
Pages51-60
Number of pages10
Edition31
DOIs
Publication statusPublished - 2008 Dec 1
EventNanomaterials for Energy Conversion and Storage 212th Meeting of the Electrochemical Society - Washington, DC, United States
Duration: 2007 Oct 72007 Oct 12

Publication series

NameECS Transactions
Number31
Volume11
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

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

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Kim, J., Park, J., Momma, T., & Osaka, T. (2008). Synthesis of Pd-Sn nanoparticles by using ultrasonic irradiation and their electrocatalytic activity for oxygen reduction. In ECS Transactions - Nanomaterials for Energy Conversion and Storage (31 ed., pp. 51-60). (ECS Transactions; Vol. 11, No. 31). https://doi.org/10.1149/1.2953506