Supermolecule Cucurbituril Subnanoporous Carbon Supercapacitor (SCSCS)

被引：54

作者：

Cui, Jiaqing ^{[1
,2
]}

Yin, Jie ^{[1
]}

Meng, Jiashen ^{[3
]}

Liu, Yan ^{[4
]}

Liao, Mingyue ^{[1
,2
]}

Wu, Tao ^{[1
,2
]}

Dresselhaus, Mildred ^{[3
]}

Xie, Yiming ^{[1
]}

Wu, Jihuai ^{[1
]}

Lu, Canzhong ^{[2
]}

Zhang, Xingcai ^{[3
,4
]}

机构：

[1] Huaqiao Univ, Minist Educ, Engn Res Ctr Environm Friendly Funct Mat, Inst Mat Phys Chem, Xiamen 361021, Peoples R China

[2] Chinese Acad Sci, Haixi Inst, Xiamen Inst Rare Earth Mat, Xiamen 361021, Peoples R China

[3] MIT, Sch Engn, Cambridge, MA 02139 USA

[4] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

来源：

NANO LETTERS | 2021年 / 21卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Supermolecule cucurbituril subnanoporous carbon supercapacitor (SCSCS); supramolecular coordination compound (SPCC); porous carbon materials; ionic liquid; energy storage;

D O I：

10.1021/acs.nanolett.0c04938

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

It is quite challenging to prepare subnanometer porous materials from traditional porous precursors, and use of supramolecules as carbon sources was seldom reported due to the complex preparation and purification processes. We explore a facile one-pot method to fabricate supramolecular coordination compounds as carbon sources. The resultant CB[6]-derived carbons (CBC) have a high N content of 7.0-22.0%, surface area of 552-861 m(2) g(-1), and subnano/mesopores. The CBC electrodes have a narrow size distribution at 5.9 angstrom, and the supercapacitor exhibits an energy density of 117.1 Wh kg(-1) and a potential window of over 3.8 V in a two-electrode system in the ionic liquid (MMIMBF4) electrolyte with appropriate cationic (5.8 angstrom) and anionic (2.3 angstrom) diameter. This work presents the facile fabrication of novel supermolecule cucurbituril subnanoporous carbon materials and the smart design of "pores and balls" for high-performance energy storage systems.

引用

页码：2156 / 2164

页数：9

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