Seed-mediated synthesis of Pd-Rh bimetallic nanodendrites

Hirokazu Kobayashi, Byungkwon Lim, Jinguo Wang, Pedro H.C. Camargo, Taekyung Yu, Moon J. Kim, Younan Xia

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

This Letter describes a simple, aqueous-phase route to the synthesis of Pd-Rh bimetallic nanodendrites consisting of Rh branches anchored to a Pd nanocrystal core. Palladium nanocrystals with various shapes, including truncated octahedron, cube, octahedron, and thin plate, have all been successfully employed as seeds to grow Rh branches via the reduction of Na 3RhCl6 with l-ascorbic acid in an aqueous solution. The degree of Rh branching could be controlled by varying the concentration of Na3RhCl6 involved in a synthesis. Electron microscopy analysis revealed that growth of Rh branches proceeded via attachment of small Rh particles that had been formed via homogeneous nucleation in solution.

Original languageEnglish
Pages (from-to)249-254
Number of pages6
JournalChemical Physics Letters
Volume494
Issue number4-6
DOIs
Publication statusPublished - Jul 19 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry

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