The electrochemical synthesis of sulfur-doped nanostructured graphite including graphene and carbon nano-tube via direct electrochemical conversion of CO2 in CaCl2-NaCl-CaO-Li2SO4 has been realized at a relative low temperature (675 degrees C). The results indicate that sulfur can successfully incorporate into carbon matrix and the graphitization degree can also be enhanced by introducing sulfur. In addition to SO42-, Li+ will also have positive effect on improving the graphitization of carbon deposition. Aggregated carbon particles are included in all samples while ultrathin graphite sheet, wire-like carbon, carbon nano-tube and interwoven carbon chains can be obtained in some cases at different electrolytic conditions. This work opens up a novel way to fabricate heteroatom-doped nanostructured carbons from carbon dioxide. (C) 2018 Elsevier Ltd. All rights reserved.
1.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China 2.Chongqing Univ, Chongqing Key Lab Vanadium Titanium Met & Adv Mat, Chongqing 400044, Peoples R China 3.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
Recommended Citation:
Hu, Liwen,Yang, Zhikun,Yang, Wanlin,et al. The synthesis of sulfur-doped graphite nanostructures by direct electrochemical conversion of CO2 in CaCl2-NaCl-CaO-Li2SO4[J]. CARBON,2019-01-01,144:805-814