5 years ago

Facile electrosynthesis of silicon carbide nanowires from silica/carbon precursors in molten salt

Xionggang Lu, Xingli Zou, Zhongfu Zhou, Li Ji
Silicon carbide nanowires (SiC NWs) have attracted intensive attention in recent years due to their outstanding performances in many applications. A large-scale and facile production of SiC NWs is critical to its successful application. Here, we report a simple method for the production of SiC NWs from inexpensive and abundantly available silica/carbon (SiO2/C) precursors in molten calcium chloride. The solid-to-solid electroreduction and dissolution-electrodeposition mechanisms can easily lead to the formation of homogenous SiC NWs. This template/catalyst-free approach greatly simplifies the synthesis procedure compared to conventional methods. This general strategy opens a direct electrochemical route for the conversion of SiO2/C into SiC NWs, and may also have implications for the electrosynthesis of other micro/nanostructured metal carbides/composites from metal oxides/carbon precursors.

Publisher URL: https://www.nature.com/articles/s41598-017-10587-5

DOI: 10.1038/s41598-017-10587-5

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