Peer-Reviewed Journal Details
Mandatory Fields
Padmanathan, N., Shao, H., McNulty, D., O’Dwyer, C. & Razeeb, K. M.
2016
March
Journal of Materials Chemistry A
Hierarchical NiO-In2O3 Microflower (3D)/ Nanorod (1D) Hetero-Architecture as a Supercapattery Electrode with Excellent Cyclic Stability
Published
()
Optional Fields
4
4820
4830
Three-dimensional (3D) hybrid nanostructured electrodes based on one-dimensional (1D) nanorod arrays have recently attracted great attention owing to their synergistic effect of three-dimensional nanostructures and application in energy storage and conversion devices. Here, we designed a heterostructured supercapattery electrode from a combination of NiO and In2O3 with a hierarchical hybrid microstructure on nickel foam (NF). Simultaneous heterogeneous growth of 1D nanorod-supported 3D microflower structures on nickel foam enhanced the non-capacitive faradaic energy storage performance due to the synergistic contribution from hierarchical hybrid nanostructure. The heterostructured electrode exhibits a high specific capacity of 766.65 C g−1 at 5 A g−1 and remains as high as 285.12 C g−1 at 30 A g−1. The composite electrode shows an excellent rate performance as a sandwich type symmetric device, offering a high specific energy of 26.24 W h kg−1 at a high power of 1752.8 W kg−1. The device shows a long term cyclic stability with 79% retention after 50 000 cycles, which is remarkable for an oxide based pseudocapacitor. These results suggest that NiO–In2O3 with hybrid micro/nano architecture could be a promising electrode for next generation supercapatteries.
http://pubs.rsc.org/en/content/articlelanding/2016/ta/c5ta10407f#!divAbstract
10.1039/C5TA10407F
Grant Details