Under leadership of Akihiro Uehara a combined electrochemical/X-ray absorption spectroscopy study deconstructing the famous Brust-Schiffrin synthesis of gold nanoparticles has been carried out. The results elucidates some of the transformations taking place during this two-phase synthesis. The results show that the reaction at the oil-water interface includes a time dependent evolution of the Au(I) species formed as intermediates, and identifies the nature of the (also time dependent) thiolate side products.
Electrochemical Insight into the Brust-Schiffrin Synthesis of Au Nanoparticles
A. Uehara, S. G. Booth, S.-Y. Chang, S. L. M. Schroeder, T. Imai, T. Hashimoto, J. F. W. Mosselmans & R. A. W. Dryfe
Journal of the American Chemical Society 137 (2015) 15135–15144.