Stability limits of tin-based electrocatalyst supports.

ABSTRACT: Tin-based oxides are attractive catalyst support materials considered for application in fuel cells and electrolysers. If properly doped, these oxides are relatively good conductors, assuring that ohmic drop in real applications is minimal. Corrosion of dopants, however, will lead to severe performance deterioration. The present work aims to investigate the potential dependent dissolution rates of indium tin oxide (ITO), fluorine doped tin oxide (FTO) and antimony doped tin oxide (ATO) in the broad potential window ranging from -0.6 to 3.2 V_RHE in 0.1 M H₂SO₄ electrolyte. It is shown that in the cathodic part of the studied potential window all oxides dissolve during the electrochemical reduction of the oxide - cathodic dissolution. In case an oxidation pot

SUBMITTER: Geiger S 

PROVIDER: S-EPMC5496880 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature