@article{ART002695366},
author={Yan Rui and Wang Kai and Tian Xiaodong and Li Xiao and Yang Tao and Xu Xiaotong and He Yiting and Lei Shiwen and Song Yan},
title={Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor},
journal={Carbon Letters},
issn={1976-4251},
year={2020},
volume={30},
number={3},
pages={331-344},
doi={10.1007/s42823-019-00102-3}
TY - JOUR
AU - Yan Rui
AU - Wang Kai
AU - Tian Xiaodong
AU - Li Xiao
AU - Yang Tao
AU - Xu Xiaotong
AU - He Yiting
AU - Lei Shiwen
AU - Song Yan
TI - Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor
JO - Carbon Letters
PY - 2020
VL - 30
IS - 3
PB - Korean Carbon Society
SP - 331
EP - 344
SN - 1976-4251
AB - Heteroatoms in situ-doped hierarchical porous hollow-activated carbons (HPHACs) have been prepared innovatively by pyrolyzation of setaria viridis combined with alkaline activation for the frst time. The micro-morphology, pore structure, chemical compositions, and electrochemical properties are researched in detail. The obtained HPHACs are served as outstand�ing electrode materials in electrochemical energy storage ascribe to the particular hierarchical porous and hollow structure, and the precursor setaria viridis is advantage of eco-friendly as well as cost-efective. Electrochemical measurement results of the HPHACs electrodes exhibit not only high specifc capacitance of 350 F g−1 at 0.2 A g−1, and impressive surface specifc capacitance (Cs) of 49.9 μF cm−2, but also substantial rate capability of 68% retention (238 F g−1 at 10 A g−1) and good cycle stability with 99% retention over 5000 cycles at 5 A g−1 in 6 M KOH. Besides, the symmetrical supercapacitor device based on the HPHACs electrodes exhibits excellent energy density of 49.5 Wh kg−1 at power density of 175 W kg−1 , but still maintains favorable energy density of 32.0 Wh kg−1 at current density of 1 A g−1 in 1-ethy-3-methylimidazolium tetrafuoroborate (EMIMBF4) ionic liquid electrolyte, and the excellent cycle stability behaviour shows the nearly 97% ratio capacitance retention of the initial capacitance after 10,000 cycles at current density of 2 A g−1. Overall, the results indicate that HPHACs derived from setaria viridis have appealing electrochemical performances thus are promising electrode materi�als for supercapacitor devices and large-scale applications.
KW - Hierarchical porous hollow-activated carbons · Setaria viridis · Supercapacitor · Energy storage · High energy density
DO - 10.1007/s42823-019-00102-3
ER -
Yan Rui, Wang Kai, Tian Xiaodong, Li Xiao, Yang Tao, Xu Xiaotong, He Yiting, Lei Shiwen and Song Yan. (2020). Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor. Carbon Letters, 30(3), 331-344.
Yan Rui, Wang Kai, Tian Xiaodong, Li Xiao, Yang Tao, Xu Xiaotong, He Yiting, Lei Shiwen and Song Yan. 2020, "Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor", Carbon Letters, vol.30, no.3 pp.331-344. Available from: doi:10.1007/s42823-019-00102-3
Yan Rui, Wang Kai, Tian Xiaodong, Li Xiao, Yang Tao, Xu Xiaotong, He Yiting, Lei Shiwen, Song Yan "Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor" Carbon Letters 30.3 pp.331-344 (2020) : 331.
Yan Rui, Wang Kai, Tian Xiaodong, Li Xiao, Yang Tao, Xu Xiaotong, He Yiting, Lei Shiwen, Song Yan. Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor. 2020; 30(3), 331-344. Available from: doi:10.1007/s42823-019-00102-3
Yan Rui, Wang Kai, Tian Xiaodong, Li Xiao, Yang Tao, Xu Xiaotong, He Yiting, Lei Shiwen and Song Yan. "Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor" Carbon Letters 30, no.3 (2020) : 331-344.doi: 10.1007/s42823-019-00102-3
Yan Rui; Wang Kai; Tian Xiaodong; Li Xiao; Yang Tao; Xu Xiaotong; He Yiting; Lei Shiwen; Song Yan. Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor. Carbon Letters, 30(3), 331-344. doi: 10.1007/s42823-019-00102-3
Yan Rui; Wang Kai; Tian Xiaodong; Li Xiao; Yang Tao; Xu Xiaotong; He Yiting; Lei Shiwen; Song Yan. Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor. Carbon Letters. 2020; 30(3) 331-344. doi: 10.1007/s42823-019-00102-3
Yan Rui, Wang Kai, Tian Xiaodong, Li Xiao, Yang Tao, Xu Xiaotong, He Yiting, Lei Shiwen, Song Yan. Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor. 2020; 30(3), 331-344. Available from: doi:10.1007/s42823-019-00102-3
Yan Rui, Wang Kai, Tian Xiaodong, Li Xiao, Yang Tao, Xu Xiaotong, He Yiting, Lei Shiwen and Song Yan. "Heteroatoms in situ-doped hierarchical porous hollow-activated carbons for high-performance supercapacitor" Carbon Letters 30, no.3 (2020) : 331-344.doi: 10.1007/s42823-019-00102-3