A Linear Free Energy Relationship for Gas‐Solid Interactions: Correlation between Surface Rate Constant and Diffusion Coefficient of Oxygen Tracer Exchange for Electron‐Rich Perovskites

The variation of the activation enthalpy for surface oxygen exchange O2+⇄+2 h. with sample composition in (Ln,Sr)(Mn,Fe,Co)O3−z perovskites is rigidly coupled to the variation of the overall reaction enthalpy (see picture). This is the first mechanistically well-established example of a Hammett-like relationship for inorganic gas-solid reactions. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z460081_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.