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Combined surface analytical and electrochemical investigations of RuTiSn mixed oxide electrocatalysts
Author(s) -
Wagner N.,
Kühnemund L.
Publication year - 1988
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170230812
Subject(s) - electrochemistry , x ray photoelectron spectroscopy , titanium , oxide , diffusion , anode , substrate (aquarium) , materials science , oxygen , corrosion , ruthenium , chemical engineering , oxygen evolution , titanium oxide , inorganic chemistry , electrode , chemistry , metallurgy , catalysis , physics , oceanography , organic chemistry , engineering , thermodynamics , geology , biochemistry
Using a galvanostatic oxygen exposure, it can be shown by XPS and SEM that admixtures of Sn (2 at.%) to RTO anodes inhibit the corrosion of both the bulk ruthenium species and the titanium substrate interface. The inhibitor effect is strongly dependent on the Sn segregation to the surface region blocking the channels of oxygen diffusion in incoherent active layers for Cl 2 evolution.