以棉纤维为碳源和模板,采用生物模板法成功合成出直径50～200 nm、长度几至十几微米的碳化钛纳米线,并通过化学浴沉积法在其表面均匀沉积氧化镍纳米片,所构建的TiC@NiO核壳纳米结构具有良好的超电容性能,制备成超级电容器后在1 A/g电流密度下比电容量为560 F/g,而类似条件下制备的NiO材料的比电容量仅为193.5 F/g,并且TiC@NiO在20 A/g电流密度下循环5000次后容量保持率达到83.6％,表现出了良好的循环稳定性.
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