Fabrication of novel lamellar alternating nitrogen-doped microporous carbon nanofilm/MoS2 composites with high electrochemical properties
Fabrication of novel lamellar alternating nitrogen-doped microporous carbon nanofilm/MoS2 composites with high electrochemical properties
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DOI：
10.1039/c7ta07136a
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发表时间：
2017-11
影响因子：
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通讯作者：
Zhen Chen;Huiqi Xie;Linfeng Hu;Min Chen;Limin Wu
中科院分区：
文献类型：
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作者：
Zhen Chen;Huiqi Xie;Linfeng Hu;Min Chen;Limin Wu
微孔有机聚合物具有特殊的结构和重要的性能，但其难加工性严重限制了其实际应用。在这项研究中，我们合成含氮微孔有机聚合物纳米膜，通过使用界面聚合策略，然后使用它们作为模板，制备新型的氮掺杂微孔碳纳米膜/二硫化钼（NMC-nanofilm@ MoS 2）复合材料。由于NMC纳米膜的表面被MoS 2纳米片均匀地覆盖以形成MoS 2和NMC纳米膜的交替的逐层纳米结构，所获得的基于复合物的电极表现出比先前报道的基于MoS 2的复合物优越的上级电化学性能，在1.0 A g-1的电流密度下在第500次循环之后具有高达1190 mA h g-1的比容量，并且在2.0 A g-1的电流密度下，在第2000次循环后为908 mA h g-1。
Microporous organic polymers have special structures and important properties, but their hard processability severely limits their practical applications. In this study, we synthesize nitrogen-containing microporous organic polymer nanofilms by using an interfacial polymerization strategy and then use them as a template to fabricate novel nitrogen-doped microporous carbon nanofilm/molybdenum disulfide (NMC-nanofilm@MoS2) composites. Owing to the surfaces of NMC nanofilms homogenously covered by MoS2 nanosheets to form an alternating layer-by-layer nanostructure of MoS2 and NMC nanofilms, the obtained composite-based electrodes exhibit superior electrochemical performances to the previously reported MoS2-based composites, with a specific capacity of as high as 1190 mA h g−1 after the 500th cycle at a current density of 1.0 A g−1, and 908 mA h g−1 after the 2000th cycle at a current density of 2.0 A g−1.