摘要
A series of nominal composition Ti/（ZrO2）x（RuO2）l-x （0.1≤x≤0.9） coatings chan-ged in 10% steps was deposited on titanium substrate from RuCl3·nH2O and ZrCl4 containing ethanol solution by thermal decomposition method. The X-ray diffraction （XRD）, high-resolution transmission electron microscopy （HR-TEM） and electrochemical tests were performed to clarify the effects of ZrO2 content on the structure and capacitive property of Ti/（ZrO2）x（RuO2）l-x. The results show that by adding ZrO2 into the coatings the degree of crystallization of RuO2 decreases. The specific capacitance firstly increases and then deceases with the increase of ZrO2 content in the mixed oxide coatings. The film of Ti/（ZrO2）0.6（RuO2）0.4 consisting of amorphous matrix and fine nano-crystalline RuO2 （about 4 nm） has the maximum specific capacitance of 713.27 F/g（RuO2）.
A series of nominal composition Ti/（ZrO2）x（RuO2）l-x （0.1≤x≤0.9） coatings chan-ged in 10% steps was deposited on titanium substrate from RuCl3·nH2O and ZrCl4 containing ethanol solution by thermal decomposition method. The X-ray diffraction （XRD）, high-resolution transmission electron microscopy （HR-TEM） and electrochemical tests were performed to clarify the effects of ZrO2 content on the structure and capacitive property of Ti/（ZrO2）x（RuO2）l-x. The results show that by adding ZrO2 into the coatings the degree of crystallization of RuO2 decreases. The specific capacitance firstly increases and then deceases with the increase of ZrO2 content in the mixed oxide coatings. The film of Ti/（ZrO2）0.6（RuO2）0.4 consisting of amorphous matrix and fine nano-crystalline RuO2 （about 4 nm） has the maximum specific capacitance of 713.27 F/g（RuO2）.
基金
Supported by the National High Technology Research and Development Projects (863) of China (2007AA03Z325)
the Natural Science Foundation of China (50472002)
Provincial Science Foundation of Fujian (2009J05116)
the program for Innovative Research Team in Fuzhou University
