Journal
ELECTROCHIMICA ACTA
Volume 53, Issue 24, Pages 7210-7219Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2008.05.007
Keywords
ordered mesoporous cobalt hydroxide film; liquid crystal template; electrochemical capacitors (ECs); electrodeposition potential; electrodeposition temperature
Categories
Funding
- National Natural Science Foundation of China [NNSFC60471014]
Ask authors/readers for more resources
Novel ordered mesoporous cobalt hydroxide film (designated H1-e Co(OH)(2)) has been successfully electrodeposited from cobalt nitrate dissolved in the aqueous domains of the hexagonal lyotropic liquid crystalline phase of Brij 56. Experimental electrodeposition parameters such as deposition potentials and deposition temperatures are varied to analyze their influences on the electrochemical capacitor behavior. The films are physically characterized by scanning electron microscopy (SEM) and transmission electron Microscopy (TEM) to determine the effects of deposition potentials and temperatures on the surface morphology and nanostructure. Electrochemical techniques such as cyclic voltammetry (CV) and chronopotentiometry are applied to systematically investigate the effects of deposition potentials and temperatures on the capacitance of the films. The results demonstrated that the capacitive performance of the H1-e Co(OH)(2) film achieved the highest value when it is electrodeposited at -0.75 V under the deposition temperature of 50 degrees C. (C) 2008 Published by Elsevier Ltd.
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