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Published on: November 11, 2013
Fabrication and Electrochemical Characterization of Sulfurized-Polyacrylonitrile Nanofiber Electrodes for Na/S
Minjun Seong1, Huihun Kim1, Changhyeon Kim1
1Department of Materials Engineering and Convergence Technology & Research Institute for Green Energy Convergence Technology Gyeongsang National University Jinju, 52828, Republic of Korea.
Abstract:
A polyacrylonitrile (PAN) nanofiber web was prepared by electrospinning PAN solutions with dimethyl sulfoxide (DMSO) or Dimethylformamide (DMF) as solvent. The PAN web was heated with sulfur to synthesize a sulfurized polyacrylonitrile (SPAN) nanofiber web. The shape of the SPAN web was found to depend on concentration of the PAN solution and properties of the solvent. The SPAN web synthesized using 8 wt% PAN solution in DMSO showed the highest capacity of 1053.3 mAh g-1sulfur under a current density of 526 mA g-1sulfur. Thus, we determined that DMSO could be a potential solvent for preparation of SPAN web electrodes.
