Investigation of pseudocapacitive properties of RuO 2 film electrodes prepared by polymeric precursor method

RuO 2 electrodes were prepared by polymeric precursor method. Initially the composition variables were investigated using a factorial design and in a second step the calcination temperature was studied between 250 and 600 °C. Cyclic voltammograms in acid medium show no changes in the profile for dif...

Full description

Saved in:
Bibliographic Details
Published inJournal of power sources Vol. 158; no. 1; pp. 795 - 800
Main Authors Rosario, Adriane V., Bulhões, Luis O.S., Pereira, Ernesto C.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2006
Subjects
Polymeric precursor method
Redox pseudocapacitance
RuO 2
RuO 2
Redox pseudocapacitance
Polymeric precursor method
Online AccessGet full text

Cover

More Information
Summary:RuO 2 electrodes were prepared by polymeric precursor method. Initially the composition variables were investigated using a factorial design and in a second step the calcination temperature was studied between 250 and 600 °C. Cyclic voltammograms in acid medium show no changes in the profile for different preparation temperature. On the other hand, a high decrease of the current density occurs as the calcination temperature is increased. Consequently, the specific capacitance of the electrodes also decreases. Specific capacitances of 70 F g −1 were obtained for films prepared at 250 °C.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2005.09.002