Three-dimensional multichannel aerogel of carbon quantum dots for high-performance supercapacitors.
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.
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.
Lingxiao
L
Lv
Yueqiong
Y
Fan
Qing
Q
Chen
Yang
Y
Zhao
Yue
Y
Hu
Zhipan
Z
Zhang
Nan
N
Chen
Liangti
L
Qu