Abstract
This work deals with the corrosion resistance evaluation in acidic medium and electrochemical stability in a wide range (0 - 1.8 V vs ENH) for two different supports based on Sb doped SnO2 (ATO), one with low surface area (85 m2g-1) and the second one with a high surface area (216 m2g-1). Both materials were synthesized by sol - gel method and characterized by XRD, BET and HR-TEM. Both supports were compared with commercial Carbon Vulcan XC-72. The results show good chemical stability when the ATO and the modified-ATO are subjected to these conditions, whereas Vulcan carbon corrodes easily. This indicates that Sb-doped SnO2 is a good candidate for electrocatalyst supports for energy-conversion systems such as electrolysers and unified regenerative fuel cells.
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