1. High-Yield Synthesis of Long Silver Nanowires via Chromic Chloride and a Stable Reaction Environment
- Author
-
Meng Hanqi, Kunkun Chen, Dang Rui, Qigao Cao, Zhao Panchao, and Bosheng Zhang
- Subjects
Materials science ,Article Subject ,chemistry.chemical_element ,Silver nanowires ,Ion ,Chromium ,Adsorption ,chemistry ,Chemical engineering ,Standard electrode potential ,Etching (microfabrication) ,Yield (chemistry) ,lcsh:Technology (General) ,lcsh:T1-995 ,Coupling (piping) ,General Materials Science - Abstract
The search for suitable synthesis methods and parameters capable of controlling the length, diameter, and yield of silver nanowires (AgNWs) is still an emerging strategy today. Therefore, a method for high-yield synthesis of long AgNWs via chromic chloride and a stable reaction environment was proposed. The results show that Cr3+ could restore the adsorbed atomic oxygen quickly and provide a high efficiency in the prevention of the oxidative etching, for the ion of Cr2+ oxidized to Cr3+ has a lower standard electrode potential, and a more stable reaction environment provided by the coupling method could avoid disturbing the growth of the {111} reactive sites of the wires; then, the yield and length of the AgNWs were improved. The length of the AgNWs was over 75 μm and even 160 μm; the yield of the AgNWs was over 90%, which provides the referable basis for the synthesis of ultralong AgNWs.
- Published
- 2019