Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 1, Issue 36, Pages 10655-10661Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta10954b
Keywords
-
Funding
- NSFC
- 863 Program [2012AA03A609]
- 973 Program [2011CBA00503]
- Program for Changjiang Scholars and Innovative Research Team in University of P. R. China [IRT1205]
Ask authors/readers for more resources
The performance of pseudocapacitors usually depends largely on careful manipulation of nano-architectures and suitable composition of the active materials. Herein, NiTi layered double hydroxide (LDH) thin films with uniform density were synthesized by a process including two hydrothermal treatment steps and the composition of the hexagonal NiTi-LDH nanosheets was tunable in a relatively wide range. The obtained NiTi-LDH films on nickel foam show a high areal capacitance of 10.37 F cm(-2) at 5 mA cm(-2), and good cycling stability (86% of its initial value was preserved after 1000 charge-discharge cycles), much better than beta-Ni(OH)(2) and basic nickel hydroxides carbonate {Ni-2(OH)(2)CO3 center dot 4H(2)O} films. It is indicated that NH3 center dot H2O in the reaction solution played some important roles including enlarging the particle size, focusing the size distribution, and regulating the stacking modes of NiTi-LDH on nickel foam. This work demonstrated the importance of homogeneous dispersion of Ti atoms in layered nanostructures used in supercapacitors.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available