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Surface Characterization of RuO2 ‐ SnO2 Coated Titanium Electrodes

1996; Institute of Physics; Volume: 143; Issue: 1 Linguagem: Inglês

10.1149/1.1836383

1945-7111

Minoru Ito, Yasushi Murakami, Hayato Kaji, Kiyochika Yahikozawa, Yoshio Takasu,

Electrodeposition and Electroless Coatings

coatings supported on titanium were characterized in morphology using a high resolution scanning electron microscope and an atomic force microscope and in composition using a scanning Auger microscope. Ruthenium was segregated in island‐like deposits in the case of ‐rich electrodes and along cracks for ‐rich electrodes where tin was localized in the macroscopically flat plane consisting of ultrafine particles. The ultrafine particles found on ‐rich electrodes, which were smaller than those found for ‐rich electrodes, contributed to the large active surface area of the electrode.