Hyperstoichiometric interaction between silver and mercury at the nanoscale

Kseniia V. Katok, Raymond L.D. Whitby, Takahiro Fukuda, Toru Maekawa, Igor Bezverkhyy, Sergey V. Mikhalovsky, Andrew B. Cundy

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


Breaking through the stoichiometry barrier: As the diameter of silver particles is decreased below a critical size of 32 nm, the molar ratio of aqueous Hg II to Ag 0 drastically increases beyond the conventional Hg/Ag ratio of 0.5:1, leading to hyperstoichiometry with a maximum ratio of 1.125:1 (see figure). Therein, around 99 % of the initial silver is retained to rapidly form a solid amalgam with reduced mercury.

Original languageEnglish
Pages (from-to)2632-2635
Number of pages4
JournalAngewandte Chemie - International Edition
Issue number11
Publication statusPublished - Mar 12 2012


  • hyperstoichiometry
  • mercury
  • nanoparticles
  • redox chemistry
  • silver

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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