Get access

Anti-Galvanic Reduction of Thiolate-Protected Gold and Silver Nanoparticles

Authors

  • Prof. Dr. Zhikun Wu

    Corresponding author
    1. Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031(P.R. China)
    • Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031(P.R. China)
    Search for more papers by this author

  • This work is supported by the Hundred Talent Program of the Chinese Academy of Sciences and the Natural Science Foundation of China (Grant no. 21171170).

Abstract

original image

Unexpected: Anti-galvanic reduction (AGR), that is, metal ions are reduced by more-noble metals, was found in small thiolated gold (see figure) and silver nanoparticles! These findings are not only unexpected considering the classic galvanic theory, but also provide a facile and mild method to make alloys on the nanoscale or tune the compositions, structures, and properties of nanostructures that are otherwise difficult to obtain.

Get access to the full text of this article

Ancillary