Compressive strain as the main origin of enhanced oxygen reduction reaction activity for Pt electrocatalysts on chromium-doped titania support
Keywords: ORR, oxygen reduction reaction; PEMFCs, proton exchange membrane fuel cells; SMSI, strong metal-support interaction; DFT, density functional theory; XPS, X-ray photoelectron spectroscopy; XANES, X-ray absorption near edge structure; EXAFS, extended X-ray