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Gold–Mercury Nanoalloys: Au@Hg Nanoalloy Formation Through Direct Amalgamation: Structural, Spectroscopic, and Computational Evidence for Slow Nanoscale Diffusion (Adv. Funct. Mater. 17/2011)
Author(s) -
Mertens Stijn F. L.,
Gara Matthew,
Sologubenko Alla S.,
Mayer Joachim,
Szidat Sönke,
Krämer Karl W.,
Jacob Timo,
Schiffrin David J.,
Wandlowski Thomas
Publication year - 2011
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201190069
Subject(s) - mercury (programming language) , materials science , nanoscopic scale , alloy , nanoparticle , colloidal gold , nanotechnology , chemical engineering , chemical physics , metallurgy , chemistry , computer science , engineering , programming language
Stirring gold nanoparticles in water with liquid mercury leads to alloy particles, in which the amount of mercury simply depends on the reaction time. On page 3259 , Stijn F. L. Mertens and co‐workers show that the large difference in cohesive energy between the alloying elements causes the slow inward diffusion of mercury over a fixed distance, independent of the mercury content. After a few days, the particles consist of a pure gold core (indicated in red in the image) surrounded by a solid solution of the two elements. (Cover design: J. Oliveras)