A novel chemical vapor deposition (CVD) method was used to prepare Fe3C nanocrystal coated with ultra-long carbon nanotubes (Fe3C-CNT) by one-pot method using tripolynitrylamine as solid carbon source and ferric chloride (FeCl3) powder as raw material.The Fe3C-CNT/S composite was obtained by mixing Fe3C-CNT with sulfur powder (S) by melting method.Thanks to the excellent electrical conductivity and sulfur-immobilized effects of Fe3C-CNT,the composite material,used as the cathode for lithium-sulfur batteries,exhibited significantly improved electrochemical performance,which could maintain the specific capacity of 378.4mAh/g at a current of 1C.
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基金资助
国家自然科学基金资助项目(51602049);高等教育规划专项课题(GJGH2023014)
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