Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
181856 | Electrochemistry Communications | 2007 | 6 Pages |
Nanoporous nickel hydroxide film has been successfully electrodeposited on titanium substrate from nickel nitrate dissolved in the aqueous domains of the hexagonal lyotropic liquid crystalline phase of Brij 56. Low-angle X-ray diffraction (XRD), transmission electron microscopy (TEM), and atomic force microscopy (AFM) studies show that the film has a regular nanostructure consisting of a hexagonal array of cylindrical pores with a repeat center-to-center spacing of about 7 nm. Preliminary electrochemical studies are carried out using cyclic voltammetry (CV) and chronopotentiometry technology. A maximum specific capacitance of 578 F g−1 could be achieved for the nanoporous Ni(OH)2 film electrode, suggesting its potential application in electrochemical capacitors.