Three-dimensional multichannel aerogel of carbon quantum dots for high-performance supercapacitors

Lingxiao Lv; Yueqiong Fan; Qing Chen; Yang Zhao; Yue Hu; Zhipan Zhang; Nan Chen; Liangti Qu

doi:10.1088/0957-4484/25/23/235401

Three-dimensional multichannel aerogel of carbon quantum dots for high-performance supercapacitors

Nanotechnology. 2014 Jun 13;25(23):235401. doi: 10.1088/0957-4484/25/23/235401. Epub 2014 May 21.

Authors

Lingxiao Lv¹, Yueqiong Fan, Qing Chen, Yang Zhao, Yue Hu, Zhipan Zhang, Nan Chen, Liangti Qu

Affiliation

¹ Key Laboratory of Cluster Science, Ministry of Education of China; Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry, Beijing Institute of Technology, Beijing 100081, People's Republic of China.

PMID: 24847850
DOI: 10.1088/0957-4484/25/23/235401

Abstract

A three-dimensional (3D) carbon quantum dot (CQD) aerogel has been prepared by in situ assembling CQDs in the sol-gel polymerization of resorcinol (R) and formaldehyde (F) and subsequently pyrolyzing the formed CQD gel. Compared to the supercapacitor based on the CQD-free aerogel, the supercapacitor fabricated with the CQD aerogel showed 20-fold higher specific capacitance (294.7 F g(-1) at the current density of 0.5 A g(-1)) and an excellent stability over 1000 consecutive charge-discharge cycles.

Publication types

Research Support, Non-U.S. Gov't