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RuIrO2/Ti coating is considered a prospective anode with a high anticorrosive property for some electrochemical industries of oxygen evolution reaction (OER). A series of anode coatings RuxIr1-xO2 (x = 1, 0.7, 0.5, 0.3, and 0) were deposited onto titanium substrate (TA2) by a Pechini method using commercial IrCl3 center dot 3H(2)O and RuCl3 center dot 3H(2)O as source chemicals. The prepared samples were heat treated at 450 degrees C for 1 hr. The phase structures, crystal sizes, microstructures and morphologies were analyzed by XRD and TEM techniques. The diffractograms revealed well defined crystalline structures, showing the different peaks of the rutilic phase that was common to both Ru and Ir oxides for RuxIr1-xO2 (x = 0.7, 0.5, 0.3 and 0) because the lattice parameters for RuO2 and IrO2 are rather similar. A great amount of Metallic Ru could be detected in the coating without Ir (x = 1). The finest average size of roughly 6-7 nm was observed in the coating with RuxIr1-xO2 (x = 0.7, 0.5, 0.3 and 0). The crystal size remained constant for 0 < x < 0.7 whereas the crystallite size of Ru increased to 20 nm and a small quantity of RuO2 increased to 10nm for x = 1. The anticorrosion property increased with increasing IrO2. However, the accelerated test performed at 2000 mA cm(-2) in 2M H2SO4 showed the longer life-time was obtained using Ru0.3Ir0.7O2/Ti.
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INTEGRATED FERROELECTRICS
ISSN: 1058-4587
Year: 2012
Volume: 138
Page: 65-70
0 . 3 7 5
JCR@2012
0 . 7 0 0
JCR@2023
ESI Discipline: ENGINEERING;
JCR Journal Grade:4
CAS Journal Grade:4
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0