2. VALMOR-R. MASTELARO
Information acquired: 2025
VALMOR-R. MASTELARO is an academic who published a paper in 2020 entitled Cu-,,odified SrTiO3 perovskites toward enhanced waterâ€"gas shift catalysis: A combined experim. VALMOR-R. MASTELARO published this work as part of a team: Coletta, Vitor C.. Here is a description of this work: A w,,terâ€"gas shift reaction (WGS) is important and widely applied in the production of H2. Cu-modified perovskites are promising catalysts for WGS reactions in hydrogen generation. However, the structure-dependent stability and reaction pathways of such materials remain unclear. Herein, we report catalytically active Cu-modified SrTiO3 (nominally SrTi1â€"xCuxO3) prepared by a modified polymeric precursor method. Microstructural analysis revealed a partially segregated CuO phase in the as-prepared materials. Operando X-ray diffraction and absorption spectroscopy showed the reduction of CuO into a stable metallic phase under conditions of WGS reactions for all compositions. Among the characterized materials, the x = 0. 20 composition showed the highest turnover frequency, lowest activation energy, and the highest W.