Harika Villa Krishna, Penki Tirupathi Rao, Loukya Boddapati, Samanta Atanu, Xu Gui-Liang, Sun Cheng-Jun, Grinberg Ilya, Deepak Francis Leonard, Amine Khalil, Aurbach Doron, Gedanken Aharon
Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Department of Chemistry, Bar-Ilan University Ramat-Gan 5290002 Israel
Nanostructured Materials Group, Department of Advanced Electron Microscopy Imaging and Spectroscopy, International Iberian Nanotechnology Laboratory (INL) Avenida Mestre Jose Veiga Braga 4715-330 Portugal.
Chem Sci. 2021 Jan 6;12(9):3226-3238. doi: 10.1039/d0sc06139e.
Although liquid mercury (Hg) has been known since antiquity, the formation of stable solid nano forms of Hg at room temperature has not been reported so far. Here, for the first time, we report a simple sonochemical route to obtain solid mercury nanoparticles, stabilized by reduced graphene oxide at ambient conditions. The as-formed solid Hg nanoparticles were found to exhibit remarkable rhombohedral morphology and crystallinity at room temperature. Extensive characterization using various physicochemical techniques revealed the unique properties of the solid nanoparticles of Hg compared to its bulk liquid metal phase. Furthermore, the solid nature of the Hg nanoparticles was studied electrochemically, revealing distinctive properties. We believe that solid Hg nanoparticles have the potential for important applications in the fields of electroanalytical chemistry and electrocatalysis.
尽管液态汞（Hg）自古以来就为人所知，但迄今为止尚未有关于在室温下形成稳定的固态纳米形式汞的报道。在此，我们首次报道了一种简单的声化学方法，可在环境条件下通过还原氧化石墨烯稳定获得固态汞纳米颗粒。所形成的固态汞纳米颗粒在室温下呈现出显著的菱面体形态和结晶性。使用各种物理化学技术进行的广泛表征揭示了固态汞纳米颗粒与其体相液态金属相比的独特性质。此外，通过电化学方法研究了汞纳米颗粒的固态性质，揭示了其独特特性。我们认为固态汞纳米颗粒在电分析化学和电催化领域具有重要应用潜力。
