Journal
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
Volume 23, Issue 4, Pages 1043-1047Publisher
SPRINGER
DOI: 10.1007/s10904-013-9877-y
Keywords
Nickel oxide; Nanostructure; Hydrothermal synthesis; Electrochemical property
Categories
Funding
- key scientific and technological project of Jilin Province [11ZDGG010]
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NiO nanorods composed of nanoparticles with diameter of 25-65 nm were synthesized on a nickel foam substrate by an in situ hydrothermal process in an aqueous solution containing only oxalic acid and subsequent calcination treatment. The nickel foam acted both as a substrate and nickel source. The calcination of the nickel foam substrate before the hydrothermal process played a crucial role in the formation of NiO nanostructures with different morphologies. Cyclic voltammetry and constant current charge-discharge measurements were used to evaluate the electrochemical properties of NiO. The results indicated a maximum specific capacitance as high as 126 F/g at a current density of 0.4 A/g.
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