TY - JOUR
T1 - Bamboo-derived porous carbons for Zn-ion hybrid supercapacitors
AU - Chen, Hao
AU - Zheng, Yu
AU - Zhu, Xinqiang
AU - Hong, Wenliang
AU - Tong, Yifei
AU - Lu, Yingzhuo
AU - Pei, Gu
AU - Pang, Yajun
AU - Shen, Zhehong
AU - Guan, Cao
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/7
Y1 - 2021/7
N2 - A simple one-step combustion reaction between 2-methylimidazole (C4H6N2) and sodium nitrate (NaNO3) is employed to convert bamboo powder to produce an N, O co-doped porous carbon (BC-CNa) for usage as a zinc-ion hybrid supercapacitor (ZnHS) cathode material. The as-prepared BC-CNa owns proper N, O co-doping, diverse carbon defects, and high specific surface area and pore volume. Owing to the combined effect of these features, the ZnHS fabricated with this BC-CNa as the cathode material exhibits much higher specific capacities and energy densities than the ZnHSs based on pristine bamboo-derived carbon (BC), bamboo plus C4H6N2 derived carbon (BC-C), and bamboo plus NaNO3 derived carbon (BC-Na). The maximum specific capacity and energy density of BC-CNa based ZnHS can reach 51.4 mA h g–1 and 48.3 Wh kg–1, respectively. And this ZnHS also exhibits superb cycle stability with 96 % capacity retention after 90,000 cycles.
AB - A simple one-step combustion reaction between 2-methylimidazole (C4H6N2) and sodium nitrate (NaNO3) is employed to convert bamboo powder to produce an N, O co-doped porous carbon (BC-CNa) for usage as a zinc-ion hybrid supercapacitor (ZnHS) cathode material. The as-prepared BC-CNa owns proper N, O co-doping, diverse carbon defects, and high specific surface area and pore volume. Owing to the combined effect of these features, the ZnHS fabricated with this BC-CNa as the cathode material exhibits much higher specific capacities and energy densities than the ZnHSs based on pristine bamboo-derived carbon (BC), bamboo plus C4H6N2 derived carbon (BC-C), and bamboo plus NaNO3 derived carbon (BC-Na). The maximum specific capacity and energy density of BC-CNa based ZnHS can reach 51.4 mA h g–1 and 48.3 Wh kg–1, respectively. And this ZnHS also exhibits superb cycle stability with 96 % capacity retention after 90,000 cycles.
KW - Bamboo
KW - Porous carbon
KW - Zn-ion hybrid supercapacitor
UR - http://www.scopus.com/inward/record.url?scp=85101697432&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2021.111281
DO - 10.1016/j.materresbull.2021.111281
M3 - 文章
AN - SCOPUS:85101697432
SN - 0025-5408
VL - 139
JO - Materials Research Bulletin
JF - Materials Research Bulletin
M1 - 111281
ER -