Carbon nanodot-decorated alveolate N, O, S tridoped hierarchical porous carbon as efficient electrocatalysis of polysulfide conversion for lithium-sulfur batteries
Carbon nanodot-decorated alveolate N, O, S tridoped hierarchical porous carbon as efficient electrocatalysis of polysulfide conversion for lithium-sulfur batteries
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碳纳米点装饰的蜂窝状N、O、S三掺杂分级多孔碳作为锂硫电池多硫化物转化的有效电催化
DOI：
10.1016/j.electacta.2019.01.024
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发表时间：
2019-01
影响因子：
6.6
通讯作者：
Gong Daoxin
中科院分区：
文献类型：
--
作者：
Zhong Mei-e;Guan Jindiao;Sun Jingchun;Guo Hui;Xiao Zhubing;Zhou Nan;Gui Qingwen;Gong Daoxin
Rechargeable lithium-sulfur (Li−S) batteries are a significant energy-storage device owing to their eco-friendliness and high theoretical energy density. However, the shuttle effect of soluble polysulfides as well as the slow redox kinetics constrains the development of Li-S batteries. Herein, carbon nanodots-decorated alveolate N, O, S tridoped hierarchical porous carbon (a-NOSPC) material is synthesized via facile pyrolysis of tobacco stem. The coexistence of micropores, mesopores, and macropore in the hierarchical porous carbon are beneficial for physical accommodating/immobilizing active materials sulfur and rapid charge/ion transfer. Meanwhile, the N, O, S dopants provide rich electrocatalytic active site in chemical binding of polysulfides and their accelerated redox kinetics, thus guaranteeing high utilization on active materials. The resultant a-NOSPC/S cathode with an 2.7 mg cm−2areal sulfur loading delivers a high reversible areal capacity of 2.90 mAh cm−2at 0.1 C, maintaining 2.01 mAh cm−2over 100 cycles, which is obviously superior to the most reported biochar-based electrodes. Our results provide an appealing avenue to the design of multifunctional sulfur host for advanced Li-S batteries.
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影响因子：
9.5
作者：
R. Carter;L. Oakes;N. Muralidharan;Adam P. Cohn;Anna Douglas;C. Pint
通讯作者：
R. Carter;L. Oakes;N. Muralidharan;Adam P. Cohn;Anna Douglas;C. Pint
影响因子：
6.6
作者：
Yunya Zhang;Zan Gao;Ningning Song;Xiaodong Li
通讯作者：
Yunya Zhang;Zan Gao;Ningning Song;Xiaodong Li
影响因子：
5.4
作者：
Zhipeng Zeng;Xingbo Liu
通讯作者：
Zhipeng Zeng;Xingbo Liu
影响因子：
--
作者：
Yijun Zhong;Shaofeng Wang;Yujing Sha;Meilin Liu;R. Cai;Li Li-Li;Zongping Shao
通讯作者：
Yijun Zhong;Shaofeng Wang;Yujing Sha;Meilin Liu;R. Cai;Li Li-Li;Zongping Shao
影响因子：
6.6
作者：
Wu, Huali;Mou, Jirong;Lin, Dunmin
通讯作者：
Lin, Dunmin