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首页> 外文期刊>RSC Advances >Nitrogen doped small molecular structures of nano-graphene for high-performance anodes suitable for lithium ion storage
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Nitrogen doped small molecular structures of nano-graphene for high-performance anodes suitable for lithium ion storage

机译：氮掺杂的纳米石墨烯小分子结构，适用于适合锂离子存储的高性能阳极

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N-doped nano-graphene derivatives were prepared by a bottom-up organic synthesis method. Through d -spacing modification and dynamic self-assembly of the structures of these molecules, ideal lithium ion-transfer aggregation formed between each monolayer. Rapid ion/electron transfer and maintenance of the structural integrity during repeated ion insertion/extraction occurred due to the lack of a covalent interaction force among the assembled structures. The doping level, i.e. , number of N atoms, had a significant influence on the molecular self-assembled structures through hierarchical self-assembly. As the N concentration increased, the d -space between the nanosheets increased from 3.4 to 4.3. The capacity of the nano-graphene increased greatly from N-doping nano-graphene (NG-N _(4) ) to 1800 mA h g ~(?1) , indicating that the capacity is related to the structure. Moreover, the N-doping site of nano-graphene was defined and the relationship between the performance and structure was determined.
机译：通过自下而上的有机合成方法制备N掺杂的纳米石墨烯衍生物。通过这些分子的结构的d间隔修饰和动态自组装，在每个单层之间形成了理想的锂离子转移聚集体。由于组装结构之间缺乏共价相互作用力，因此在反复进行离子插入/萃取过程中发生了快速的离子/电子转移并保持了结构完整性。掺杂水平，即N原子的数目，通过分级自组装对分子自组装结构具有显着影响。随着N浓度的增加，纳米片之间的d空间从3.4增加到4.3。纳米石墨烯的容量从N掺杂纳米石墨烯（NG-N _（4））大幅度提高到1800 mA h g〜（Δ1），表明该容量与结构有关。此外，定义了纳米石墨烯的N掺杂位点，并确定了性能与结构之间的关系。

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