Oxygen-deficient hematite nanorods as high-performance and novel negative electrodes for flexible asymmetric supercapacitors.
Oxygen-deficient α-Fe2 O3 nanorods with outstanding capacitive performance are developed and demonstrated as novel negative electrodes for flexible asymmetric supercapacitors. The asymmetric-supercapacitor device based on the oxygen-deficient α-Fe2 O3 nanorod negative electrode and a MnO2 positive electrode achieves a maximum energy density of 0.41 mW·h/cm(3) ; it is also capable of charging a mobile phone and powering a light-emitting diode indicator.
KLGHEI of Environment and Energy Chemistry, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, PR China.
Xihong
X
Lu
Yinxiang
Y
Zeng
Minghao
M
Yu
Teng
T
Zhai
Chaolun
C
Liang
Shilei
S
Xie
Muhammad-Sadeeq
MS
Balogun
Yexiang
Y
Tong
electrode materials; hematite; nanorods; oxygen-deficient materials; supercapacitors