Mixed‐Valence Ce/Zr Metal‐Organic Frameworks: Controlling the Oxidation State of Cerium in One‐Pot Synthesis Approach
Maria Ronda‐Lloret, Isaac Pellicer‐Carreño, Aida Grau‐Atienza, Roberto Boada, Sofía Díaz‐Moreno, Javier Narciso‐Romero, Juan Carlos Serrano‐Ruiz, Antonio Sepúlveda‐Escribano, Enrique V. Ramos–Fernández
Abstract
Abstract The preparation of MOFs including a metal with an easily exchangeable oxidation state, while maintaining the same crystal structure and stability, is of paramount importance for myriad applications. In this work, a new synthesis method is reported that can be used to prepare Ce/Zr‐MOFs (UiO‐66 structure) having only Ce(III), a mixed‐valence Ce(IV)/Ce(III), or only Ce(IV) cations, as desired. The materials are characterized using a large number of techniques, including X‐ray absorption and X‐ray photoelectron spectroscopies.
Topics & Concepts
CeriumValence (chemistry)Materials scienceOxidation stateX-ray photoelectron spectroscopyMetalCrystal structureMetal-organic frameworkInorganic chemistryChemical engineeringPhysical chemistryCrystallographyMetallurgyOrganic chemistryChemistryAdsorptionEngineeringMetal-Organic Frameworks: Synthesis and ApplicationsCatalytic Processes in Materials ScienceRadioactive element chemistry and processing