查找使用阿拉丁产品的科研文献

The configuration of BiFe-PBA derived Bi2O3/BiFeO3 rectangular nanorods and NiCo-LDH/rGO for high-performance asymmetric hybrid supercapacitor with high energy density

Xin Xu,Shang Wu,Xin Sun,Shuo Tian,Chaoyang Liu,Penghui Zhang,Shuaishuai Fu,Yanbin Wang,Qiong Su,Xia Wang,Quanlu Yang

The rectangular nanorods microstructure with abundant pores can reduce structural damage caused by the volume contraction during charging-discharging processes and enhance the specific capacitance. In this work, to enhance the energy density and accelerate the marketable applications of supercapacitors , Bi 2 O 3 /BiFeO 3 rectangular nanorods with rich mesoporous structure derived from the iron‑bismuth based Prussian blue analogue are rationally designed to achieve a large specific capacitance through precipitation and annealing measures. There are a huge specific capacity of 741 F g −1 and long cycle life. The NiCo-LDH/rGO (954 F g −1 ) demonstrated an impressive stability of 86 % after 10,000 cycles and is utilized to establish asymmetric supercapacitor device. Amazingly, the NiCo-LDH/rGO//Bi 2 O 3 /BiFeO 3 device achieves an enormous energy density of 59.7 Wh kg −1 at 800 W kg −1 . In addition, the capacity retention ratio is 79.3 % after 7000 cycles. The work has suggested that Bi 2 O 3 /BiFeO 3 has great potential as a negative electrode of supercapacitors.