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Designing Tubular Architectures Composed of Hollow N‐Doped Carbon Polyhedrons for Improved Supercapacitance.

Authors :
Xu, Hai
Yao, Zhenjie
Gong, Yujiao
Dai, Henghan
Yu, Chenyang
Qin, Gang
Zhou, Jinyuan
Chen, Qiang
Liu, Xiang
Sun, Gengzhi
Source :
Advanced Materials Interfaces; 8/23/2021, Vol. 8 Issue 16, p1-8, 8p
Publication Year :
2021

Abstract

Despite great efforts that have been made to develop high performance carbonaceous materials via structure design for charge storage applications, constructing tubular architectures composed of hierarchically nanoscale building units is challenging due to the lack of suitable synthetic method. Herein, using zeolitic imidazolate framework‐8 (ZIF‐8) as the self‐template and electrospun polyacrylonitrile (PAN) nanofibers as the sacrificial core, hierarchically tubular architectures composed of hollow N‐doped carbon polyhedrons (T‐HNCPs) are successfully obtained. Due to its unique structural characteristics and the merit of N‐doping, the as‐prepared T‐HNCPs electrode with much open structure (average pore size of ≈2.38 nm and specific surface area of 1302.5 m2 g−1) exhibits improved specific gravimetric capacitances of 351.2 and 230.4 F g−1 at 1 and 20 A g−1 (corresponding to 65.6% retention), respectively, together with outstanding charge/discharge stability. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
21967350
Volume :
8
Issue :
16
Database :
Complementary Index
Journal :
Advanced Materials Interfaces
Publication Type :
Academic Journal
Accession number :
152038207
Full Text :
https://doi.org/10.1002/admi.202100805