The role of oxidative etching in the synthesis of ultrathin single-crystalline Au nanowires
by Alexandre Kisner, Marc Heggen, Enrique Fernandez, Steffi Lenk, Dirk Mayer, Ulrich Simon, Andreas Offenhäusser, and Yulia Mourzina
The fabrication of ultrathin single-crystal Au nanowires with high aspect ratio and that are table in air is challenging. Recently, a simple wet chemical approach using oleylamine has been reported for the synthesis of Au nanowires with micrometer length and 2 nm in diameter. Despite efforts to understand the mechanism of the reaction, an ultimate question about the role of oxygen (O2) during the synthesis remained unclear. Here we report that the synthesis of ultrathin Au nanowires employing oleylamine is strongly affected by the amount of O2 absorbed in the reaction solution.
Alexandre Kisner, Marc Heggen, Enrique Fernandez, Steffi Lenk, Dirk Mayer, Ulrich Simon, Andreas Offenhäusser, and Yulia Mourzina: The Role of Oxidative Etching in the Synthesis of Ultrathin Single-Crystal Au Nanowires, Chemistry 17 (2011) 9503-9507.