Evidence of anti-coking behavior of La0.8Sr0.2Cr0.98Ru0.02O3 as potential anode material for Solid Oxide Fuel Cells directly fed under methane

► Ru0 deactivates during methane steam reforming in water-deficient conditions. ► Ru4+ inserted in perovskite structure (LSCRu) is active and stable. ► No carbon deposition is observed on LSCRu even after 72 h of test. ► No deterioration of LSCRu catalyst is observed even after 72 h of test. ► Residual steam plays a key role in catalytic activity of LSCRu.