Crystal structure of blue-colored ceria during redox reactions in a hydrogen atmosphere†
Abstract
Neutron diffraction measurements revealed that the oxyhydroxide ceria CeO2Hy (0 ≦ y ≦1) was formed by the interaction of hydrogen under high temperature. Ceria was kinetically reduced in hydrogen depending on the isothermal holding time, and the crystal phase of CeO2H was precipitated during the short isothermal holding time.