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A series of nominal composition Ti/(ZrO_2)_x(RuO_2)_(1-x) (0.1≤x≤0.9) coatings chan- ged in 10% steps was deposited on titanium substrate from RuCl_3·nH_2O and ZrCl_4 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 ZrO_2 content on the structure and capacitive property of Ti/(ZrO_2)_x(RuO_2)_(1-x). The results show that by adding ZrO_2 into the coatings the degree of crystallization of RuO_2 decreases. The specific capacitance firstly increases and then deceases with the increase of ZrO_2 content in the mixed oxide coatings. The film of Ti/(ZrO_2)_(0.6)(RuO_2)_(0.4) consisting of amorphous matrix and fine nano-crystalline RuO_2 (about 4 nm) has the maximum specific capacitance of 713.27 F/g(RuO_2).
A series of nominal composition Ti / (ZrO_2) _x (RuO_2) _ (1-x) (0.1≤x≤0.9) coatings chan-ged in 10% steps was deposited on titanium substrate from RuCl_3.nH_2O and ZrCl_4 containing ethanol solution by The X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM) and electrochemical tests were performed to clarify the effects of ZrO 2 content on the structure and capacitive property of Ti / (ZrO 2) _x ( The results show that by adding ZrO_2 into the coatings the degree of crystallization of RuO_2 decreases. The specific capacitance first increases and then deceases with the increase of ZrO_2 content in the mixed oxide coatings. The film of Ti / (ZrO 2) _ (0.6) (RuO_2) _ (0.4) consists of amorphous matrix and fine nano-crystalline RuO_2 (about 4 nm) with the maximum specific capacitance of 713.27 F / g (RuO_2).