In this study, hydrous ruthenium oxides with adding carbon nanotube (CNT) (0.0125-0.1 wt %) was co-deposited on Ti substrate by cathodic deposition method. Ti substrate was first cleaned thoroughly by acetone and followed by chemical etching of 5%HF for 5 In this study, hydrous ruthenium oxides with adding carbon nanotube (CNT) (0.0125-0.1 wt %) was co-deposited on Ti substrate by cathodic deposition method. Ti substrate was first cleaned thoroughly by acetone and followed by chemical etching of 5%HF for 5