Graphdiyne Containing Atomically Precise N Atoms for Efficient Anchoring of Lithium Ion,ACS Applied Materials & Interfaces

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Graphdiyne Containing Atomically Precise N Atoms for Efficient Anchoring of Lithium Ion
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-03-16 00:00:00 , DOI: 10.1021/acsami.8b01823
Ze Yang ₁ , Xiangyan Shen _{1,

2} , Ning Wang ₁ , Jianjiang He ₁ , Xiaodong Li _{1,

2} , Xin Wang _{1,

2} , Zhufeng Hou ₃ , Kun Wang ₁ , Juan Gao ₁ , Tonggang Jiu ₁ , Changshui Huang ₁

Affiliation

The qualitative and quantitative nitrogen-doping strategy for carbon materials is reported here. Novel porous nanocarbon networks pyrimidine-graphdiyne (PM-GDY) and pyridine-graphdiyne (PY-GDY) films with large areas were successfully prepared. These films are self-supported, uniform, continuous, flexible, transparent, and quantitively doped with merely pyridine-like nitrogen (N) atoms through the facile chemical synthesis route. Theoretical predictions imply these N doped carbonaceous materials are much favorable for storing lithium (Li)-ions since the pyridinic N can enhance the interrelated binding energy. As predicted, PY-GDY and PM-GDY display excellent electrochemical performance as anode materials of LIBs, such as the superior rate capability, the high capacity of 1168 (1165) mA h g^–1 at current density of 100 mA g^–1 for PY-GDY (PM-GDY), and the excellent stability of cycling for 1500 (4000) cycles at 5000 mA g^–1 for PY-GDY (PM-GDY).

中文翻译：

含石墨精密N原子的Graphdiyne用于锂离子的高效固定

本文报道了碳材料的定性和定量氮掺杂策略。成功制备了新型的大面积多孔纳米碳网络嘧啶-石墨二炔（PM-GDY）和吡啶-石墨二炔（PY-GDY）膜。这些膜是自支撑的，均匀的，连续的，柔性的，透明的，并且通过简便的化学合成路线仅掺杂有吡啶样氮（N）原子。理论预测表明，这些N掺杂的碳质材料非常适合存储锂（Li）离子，因为吡啶N可以增强相关的结合能。如预料的那样，PY-GDY和PM-GDY作为LIB的阳极材料具有出色的电化学性能，例如优异的倍率能力，1168（1165）mA hg ^–1的高容量PY-GDY（PM-GDY）的电流密度为100 mA g ^–1时，PY-GDY（PM-GDY）的5000 mA g ^–1时具有1500（4000）个循环的出色循环稳定性。

更新日期：2018-03-16

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